Hi list,

I tested this simple instrument:

instr 2
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig buzz kenv, 660, 5, 1
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i2 0 1");

It plays! But this instrument:

instr 3 ;WITH WAV SAMPLE
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig oscili kenv, sr*2/ftlen(2), 2
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i3 0 1");

with function:

f2 0 65536 1 "g4_pianoforte.wav" 0 0 0

Don't play!

.csd file and .wav file are in same directory "raw".

Although I read in Csound Journal ( Brian Redfern, http://www.csoundjournal.com/issue17/android_csd_player.html ):

"I keep it easy and place my impulse files into the same folder as my CSD so I do not have to figure out the path".

Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same instrument.

Greetings

Andrea S.

Hi Andrea,

Could you post the full CSD and error message you get? Or better, a
zip of a project posted somewhere to download?

steven


On Sun, Apr 30, 2017 at 9:20 AM, Andrea Strappa  wrote:
> Hi list,
>
> I tested this simple instrument:
>
> instr 2
> iamp = .5
> icoda = .1
> xtratim icoda
> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
> asig buzz kenv, 660, 5, 1
> outs asig, asig
> endin
>
> by Android Studio Java String:
>
> String event = String.format("i2 0 1");
>
> It plays! But this instrument:
>
> instr 3 ;WITH WAV SAMPLE
> iamp = .5
> icoda = .1
> xtratim icoda
> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
> asig oscili kenv, sr*2/ftlen(2), 2
> outs asig, asig
> endin
>
> by Android Studio Java String:
>
> String event = String.format("i3 0 1");
>
> with function:
>
> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>
> Don't play!
>
> .csd file and .wav file are in same directory "raw".
>
> Although I read in Csound Journal ( Brian Redfern,
> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>
> "I keep it easy and place my impulse files into the same folder as my CSD so
> I do not have to figure out the path".
>
> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
> instrument.
>
> Greetings
>
> Andrea S.
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

I sent the project to Steven.

I look forward to his precious ispection, before making other attemps.

Thank you

Hi,

I have not written an app on Android for some time but if I remember correct, the csd is copied to temporary file due permissions problem and the sound file is not in the same folder then any more. Can you try to put the sound file to sdcard and set full path  in f2 declaration to test if that was the issue?

Hope it helps,

Tarmo

30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" <a_strappa@tin.it>:

Hi list,

I tested this simple instrument:

instr 2
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig buzz kenv, 660, 5, 1
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i2 0 1");

It plays! But this instrument:

instr 3 ;WITH WAV SAMPLE
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig oscili kenv, sr*2/ftlen(2), 2
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i3 0 1");

with function:

f2 0 65536 1 "g4_pianoforte.wav" 0 0 0

Don't play!

.csd file and .wav file are in same directory "raw".

Although I read in Csound Journal ( Brian Redfern, http://www.csoundjournal.com/issue17/android_csd_player.html ):

"I keep it easy and place my impulse files into the same folder as my CSD so I do not have to figure out the path".

Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same instrument.

Greetings

Andrea S.

Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Hi Andrea,

I took a look at the project and I had to spend a little time to
remember the design. Tarmo is correct in that the examples typically
write a temporary csd file then run.  What could be done is that when
your program first starts, you could take the files from res/raw (or
use assets, which I think was added after we first did the Android
Csound version) and write them to external storage (which may or may
not be an SD card).  After that you could then run Csound using the
version from external storage.

There's a number of posts about writing to external storage.
Something like this:

http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard

might work.  I myself haven't tried this; perhaps someone else has and
can report here?  Also, it might be nice to add an API example for
this scenario in the Csound Examples project for Android.  Perhaps
someone can contribute such an example.

steven


On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa  wrote:
> I sent the project to Steven.
>
> I look forward to his precious ispection, before making other attemps.
>
> Thank you
>
>
> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>
> Hi,
>
> I have not written an app on Android for some time but if I remember
> correct, the csd is copied to temporary file due permissions problem and the
> sound file is not in the same folder then any more. Can you try to put the
> sound file to sdcard and set full path  in f2 declaration to test if that
> was the issue?
>
> Hope it helps,
> Tarmo
>
> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>>
>> Hi list,
>>
>> I tested this simple instrument:
>>
>> instr 2
>> iamp = .5
>> icoda = .1
>> xtratim icoda
>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>> asig buzz kenv, 660, 5, 1
>> outs asig, asig
>> endin
>>
>> by Android Studio Java String:
>>
>> String event = String.format("i2 0 1");
>>
>> It plays! But this instrument:
>>
>> instr 3 ;WITH WAV SAMPLE
>> iamp = .5
>> icoda = .1
>> xtratim icoda
>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>> asig oscili kenv, sr*2/ftlen(2), 2
>> outs asig, asig
>> endin
>>
>> by Android Studio Java String:
>>
>> String event = String.format("i3 0 1");
>>
>> with function:
>>
>> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>>
>> Don't play!
>>
>> .csd file and .wav file are in same directory "raw".
>>
>> Although I read in Csound Journal ( Brian Redfern,
>> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>>
>> "I keep it easy and place my impulse files into the same folder as my CSD
>> so I do not have to figure out the path".
>>
>> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
>> instrument.
>>
>> Greetings
>>
>> Andrea S.
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here
>
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

BTW: It looks like Android's Expansion files is a system they added to
address this kind of issue:

https://developer.android.com/google/play/expansion-files.html

It seems to download and copy files to external storage automatically,
which might also get over the problem of duplicating files within the
APK and the external storage.

On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi  wrote:
> Hi Andrea,
>
> I took a look at the project and I had to spend a little time to
> remember the design. Tarmo is correct in that the examples typically
> write a temporary csd file then run.  What could be done is that when
> your program first starts, you could take the files from res/raw (or
> use assets, which I think was added after we first did the Android
> Csound version) and write them to external storage (which may or may
> not be an SD card).  After that you could then run Csound using the
> version from external storage.
>
> There's a number of posts about writing to external storage.
> Something like this:
>
> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>
> might work.  I myself haven't tried this; perhaps someone else has and
> can report here?  Also, it might be nice to add an API example for
> this scenario in the Csound Examples project for Android.  Perhaps
> someone can contribute such an example.
>
> steven
>
>
> On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa  wrote:
>> I sent the project to Steven.
>>
>> I look forward to his precious ispection, before making other attemps.
>>
>> Thank you
>>
>>
>> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>>
>> Hi,
>>
>> I have not written an app on Android for some time but if I remember
>> correct, the csd is copied to temporary file due permissions problem and the
>> sound file is not in the same folder then any more. Can you try to put the
>> sound file to sdcard and set full path  in f2 declaration to test if that
>> was the issue?
>>
>> Hope it helps,
>> Tarmo
>>
>> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>>>
>>> Hi list,
>>>
>>> I tested this simple instrument:
>>>
>>> instr 2
>>> iamp = .5
>>> icoda = .1
>>> xtratim icoda
>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>> asig buzz kenv, 660, 5, 1
>>> outs asig, asig
>>> endin
>>>
>>> by Android Studio Java String:
>>>
>>> String event = String.format("i2 0 1");
>>>
>>> It plays! But this instrument:
>>>
>>> instr 3 ;WITH WAV SAMPLE
>>> iamp = .5
>>> icoda = .1
>>> xtratim icoda
>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>> asig oscili kenv, sr*2/ftlen(2), 2
>>> outs asig, asig
>>> endin
>>>
>>> by Android Studio Java String:
>>>
>>> String event = String.format("i3 0 1");
>>>
>>> with function:
>>>
>>> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>>>
>>> Don't play!
>>>
>>> .csd file and .wav file are in same directory "raw".
>>>
>>> Although I read in Csound Journal ( Brian Redfern,
>>> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>>>
>>> "I keep it easy and place my impulse files into the same folder as my CSD
>>> so I do not have to figure out the path".
>>>
>>> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
>>> instrument.
>>>
>>> Greetings
>>>
>>> Andrea S.
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features can
>>> be posted here
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
>>
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Actually, that seems to be specific to Google Play services, which may
not be desirable. To summarize, what I'm understanding is:

1. Package resources with Android project. On start, write to external
storage a second copy of files and resources, then run from there.
2. Don't package resources. When program starts, download from
external source (maybe hosted on a web server) and unzip to external
storage. Run from there.
3. Use expansion files, which also downloads and unpacks to external
storage, then run from external storage.

If anyone else has ideas, would love to hear them!

steven


On Sun, Apr 30, 2017 at 7:57 PM, Steven Yi  wrote:
> BTW: It looks like Android's Expansion files is a system they added to
> address this kind of issue:
>
> https://developer.android.com/google/play/expansion-files.html
>
> It seems to download and copy files to external storage automatically,
> which might also get over the problem of duplicating files within the
> APK and the external storage.
>
> On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi  wrote:
>> Hi Andrea,
>>
>> I took a look at the project and I had to spend a little time to
>> remember the design. Tarmo is correct in that the examples typically
>> write a temporary csd file then run.  What could be done is that when
>> your program first starts, you could take the files from res/raw (or
>> use assets, which I think was added after we first did the Android
>> Csound version) and write them to external storage (which may or may
>> not be an SD card).  After that you could then run Csound using the
>> version from external storage.
>>
>> There's a number of posts about writing to external storage.
>> Something like this:
>>
>> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>>
>> might work.  I myself haven't tried this; perhaps someone else has and
>> can report here?  Also, it might be nice to add an API example for
>> this scenario in the Csound Examples project for Android.  Perhaps
>> someone can contribute such an example.
>>
>> steven
>>
>>
>> On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa  wrote:
>>> I sent the project to Steven.
>>>
>>> I look forward to his precious ispection, before making other attemps.
>>>
>>> Thank you
>>>
>>>
>>> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>>>
>>> Hi,
>>>
>>> I have not written an app on Android for some time but if I remember
>>> correct, the csd is copied to temporary file due permissions problem and the
>>> sound file is not in the same folder then any more. Can you try to put the
>>> sound file to sdcard and set full path  in f2 declaration to test if that
>>> was the issue?
>>>
>>> Hope it helps,
>>> Tarmo
>>>
>>> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>>>>
>>>> Hi list,
>>>>
>>>> I tested this simple instrument:
>>>>
>>>> instr 2
>>>> iamp = .5
>>>> icoda = .1
>>>> xtratim icoda
>>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>>> asig buzz kenv, 660, 5, 1
>>>> outs asig, asig
>>>> endin
>>>>
>>>> by Android Studio Java String:
>>>>
>>>> String event = String.format("i2 0 1");
>>>>
>>>> It plays! But this instrument:
>>>>
>>>> instr 3 ;WITH WAV SAMPLE
>>>> iamp = .5
>>>> icoda = .1
>>>> xtratim icoda
>>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>>> asig oscili kenv, sr*2/ftlen(2), 2
>>>> outs asig, asig
>>>> endin
>>>>
>>>> by Android Studio Java String:
>>>>
>>>> String event = String.format("i3 0 1");
>>>>
>>>> with function:
>>>>
>>>> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>>>>
>>>> Don't play!
>>>>
>>>> .csd file and .wav file are in same directory "raw".
>>>>
>>>> Although I read in Csound Journal ( Brian Redfern,
>>>> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>>>>
>>>> "I keep it easy and place my impulse files into the same folder as my CSD
>>>> so I do not have to figure out the path".
>>>>
>>>> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
>>>> instrument.
>>>>
>>>> Greetings
>>>>
>>>> Andrea S.
>>>>
>>>> Csound mailing list Csound@listserv.heanet.ie
>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>>> https://github.com/csound/csound/issues Discussions of bugs and features can
>>>> be posted here
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features can
>>> be posted here
>>>
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features can
>>> be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

thank you, Steven, for careful explanation.

I attempted the first of your three solutions, for now.

I used the method:

copyFilesToSdCard

from: http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard

I write this path:

final static String TARGET_BASE_PATH = "/sdcard/MyAppCsound_11/voices/";

and the .csd and .wav files of 'assets' directory are well copied in the specified path of my phone.

I tryed some f2 path:

f2 0 65536 1 "sdcard/MyAppCsound_11/voices/f4_pianoforte.wav"

and so on.

but I can't listen the sample. I tryed also with '\' instead '/'. I have to write another path?

What is the folder of temporary .csd file? Perhaps I have to copy the .wav samples here.

And what path I have to write here?

csoundObj.startCsound((createTempFile(getResourceFileAsString(R.raw.test_04))));

I tried with

File csdPath = new File(Environment.getExternalStorageDirectory() + "/sdcard/MyAppCsound_11/voices/test_04.csd");

Then:

csoundObj.startCsound((createTempFile(getResourceFileAsString(csdPath))));
But a message errore appears:

Error:(77, 51) error: incompatible types: File cannot be converted to int
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

Andrea

Actually, that seems to be specific to Google Play services, which may
not be desirable. To summarize, what I'm understanding is:

1. Package resources with Android project. On start, write to external
storage a second copy of files and resources, then run from there.
2. Don't package resources. When program starts, download from
external source (maybe hosted on a web server) and unzip to external
storage. Run from there.
3. Use expansion files, which also downloads and unpacks to external
storage, then run from external storage.

If anyone else has ideas, would love to hear them!

steven


On Sun, Apr 30, 2017 at 7:57 PM, Steven Yi <stevenyi@gmail.com> wrote:

BTW: It looks like Android's Expansion files is a system they added to
address this kind of issue:

https://developer.android.com/google/play/expansion-files.html

It seems to download and copy files to external storage automatically,
which might also get over the problem of duplicating files within the
APK and the external storage.

On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi <stevenyi@gmail.com> wrote:

Hi Andrea,

I took a look at the project and I had to spend a little time to
remember the design. Tarmo is correct in that the examples typically
write a temporary csd file then run.  What could be done is that when
your program first starts, you could take the files from res/raw (or
use assets, which I think was added after we first did the Android
Csound version) and write them to external storage (which may or may
not be an SD card).  After that you could then run Csound using the
version from external storage.

There's a number of posts about writing to external storage.
Something like this:

http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard

might work.  I myself haven't tried this; perhaps someone else has and
can report here?  Also, it might be nice to add an API example for
this scenario in the Csound Examples project for Android.  Perhaps
someone can contribute such an example.

steven


On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa <a_strappa@tin.it> wrote:

I sent the project to Steven.

I look forward to his precious ispection, before making other attemps.

Thank you


Il 30/04/2017 17:14, Tarmo Johannes ha scritto:

Hi,

I have not written an app on Android for some time but if I remember
correct, the csd is copied to temporary file due permissions problem and the
sound file is not in the same folder then any more. Can you try to put the
sound file to sdcard and set full path  in f2 declaration to test if that
was the issue?

Hope it helps,
Tarmo

30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" <a_strappa@tin.it>:

Hi list,

I tested this simple instrument:

instr 2
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig buzz kenv, 660, 5, 1
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i2 0 1");

It plays! But this instrument:

instr 3 ;WITH WAV SAMPLE
iamp = .5
icoda = .1
xtratim icoda
kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
asig oscili kenv, sr*2/ftlen(2), 2
outs asig, asig
endin

by Android Studio Java String:

String event = String.format("i3 0 1");

with function:

f2 0 65536 1 "g4_pianoforte.wav" 0 0 0

Don't play!

.csd file and .wav file are in same directory "raw".

Although I read in Csound Journal ( Brian Redfern,
http://www.csoundjournal.com/issue17/android_csd_player.html ):

"I keep it easy and place my impulse files into the same folder as my CSD
so I do not have to figure out the path".

Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
instrument.

Greetings

Andrea S.

Csound mailing list Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
https://github.com/csound/csound/issues Discussions of bugs and features can
be posted here

Csound mailing list Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
https://github.com/csound/csound/issues Discussions of bugs and features can
be posted here


Csound mailing list Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
https://github.com/csound/csound/issues Discussions of bugs and features can
be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Hi Andrea,

If the files are copied (the CSD and the .wav), then you shouldn't
need to change anything with the CSD as Csound will correctly load the
.wav file relative to the CSD.  For your Android code, you would use
something like:

File csdPath = new File(Environment.getExternalStorageDirectory() +
"/sdcard/MyAppCsound_11/voices/test_04.csd");

Then:

csoundObj.startCsound(csdPath);

because csdPath is already a File object. You'll just have to make
sure the csdPath is the correct path (not sure you need to have
"/sdcard" as part of the path is
Environment.getExternalStorageDirectory() is returning that).

steven


On Mon, May 1, 2017 at 11:57 AM, Andrea Strappa  wrote:
> thank you, Steven, for careful explanation.
>
> I attempted the first of your three solutions, for now.
>
> I used the method:
>
> copyFilesToSdCard
>
> from:
> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>
> I write this path:
>
> final static String TARGET_BASE_PATH = "/sdcard/MyAppCsound_11/voices/";
>
> and the .csd and .wav files of 'assets' directory are well copied in the
> specified path of my phone.
>
> I tryed some f2 path:
>
> f2 0 65536 1 "sdcard/MyAppCsound_11/voices/f4_pianoforte.wav"
>
> and so on.
>
> but I can't listen the sample. I tryed also with '\' instead '/'. I have to
> write another path?
>
> What is the folder of temporary .csd file? Perhaps I have to copy the .wav
> samples here.
>
> And what path I have to write here?
>
> csoundObj.startCsound((createTempFile(getResourceFileAsString(R.raw.test_04))));
>
> I tried with
>
> File csdPath = new File(Environment.getExternalStorageDirectory() +
> "/sdcard/MyAppCsound_11/voices/test_04.csd");
>
> Then:
>
> csoundObj.startCsound((createTempFile(getResourceFileAsString(csdPath))));
>
> But a message errore appears:
>
> Error:(77, 51) error: incompatible types: File cannot be converted to int
> Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
>> Compilation failed; see the compiler error output for details.
>
> from 'BaseCsoundActivity' class.
>
> Andrea
>
> Il 01/05/2017 02:00, Steven Yi ha scritto:
>
> Actually, that seems to be specific to Google Play services, which may
> not be desirable. To summarize, what I'm understanding is:
>
> 1. Package resources with Android project. On start, write to external
> storage a second copy of files and resources, then run from there.
> 2. Don't package resources. When program starts, download from
> external source (maybe hosted on a web server) and unzip to external
> storage. Run from there.
> 3. Use expansion files, which also downloads and unpacks to external
> storage, then run from external storage.
>
> If anyone else has ideas, would love to hear them!
>
> steven
>
>
> On Sun, Apr 30, 2017 at 7:57 PM, Steven Yi  wrote:
>
> BTW: It looks like Android's Expansion files is a system they added to
> address this kind of issue:
>
> https://developer.android.com/google/play/expansion-files.html
>
> It seems to download and copy files to external storage automatically,
> which might also get over the problem of duplicating files within the
> APK and the external storage.
>
> On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi  wrote:
>
> Hi Andrea,
>
> I took a look at the project and I had to spend a little time to
> remember the design. Tarmo is correct in that the examples typically
> write a temporary csd file then run.  What could be done is that when
> your program first starts, you could take the files from res/raw (or
> use assets, which I think was added after we first did the Android
> Csound version) and write them to external storage (which may or may
> not be an SD card).  After that you could then run Csound using the
> version from external storage.
>
> There's a number of posts about writing to external storage.
> Something like this:
>
> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>
> might work.  I myself haven't tried this; perhaps someone else has and
> can report here?  Also, it might be nice to add an API example for
> this scenario in the Csound Examples project for Android.  Perhaps
> someone can contribute such an example.
>
> steven
>
>
> On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa  wrote:
>
> I sent the project to Steven.
>
> I look forward to his precious ispection, before making other attemps.
>
> Thank you
>
>
> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>
> Hi,
>
> I have not written an app on Android for some time but if I remember
> correct, the csd is copied to temporary file due permissions problem and the
> sound file is not in the same folder then any more. Can you try to put the
> sound file to sdcard and set full path  in f2 declaration to test if that
> was the issue?
>
> Hope it helps,
> Tarmo
>
> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>
> Hi list,
>
> I tested this simple instrument:
>
> instr 2
> iamp = .5
> icoda = .1
> xtratim icoda
> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
> asig buzz kenv, 660, 5, 1
> outs asig, asig
> endin
>
> by Android Studio Java String:
>
> String event = String.format("i2 0 1");
>
> It plays! But this instrument:
>
> instr 3 ;WITH WAV SAMPLE
> iamp = .5
> icoda = .1
> xtratim icoda
> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
> asig oscili kenv, sr*2/ftlen(2), 2
> outs asig, asig
> endin
>
> by Android Studio Java String:
>
> String event = String.format("i3 0 1");
>
> with function:
>
> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>
> Don't play!
>
> .csd file and .wav file are in same directory "raw".
>
> Although I read in Csound Journal ( Brian Redfern,
> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>
> "I keep it easy and place my impulse files into the same folder as my CSD
> so I do not have to figure out the path".
>
> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
> instrument.
>
> Greetings
>
> Andrea S.
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here
>
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
>
> Csound mailing list Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
> https://github.com/csound/csound/issues Discussions of bugs and features can
> be posted here

Csound mailing list
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https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Ok! Resolved! I had neglected to changed the parameter in 
csoundObj.startCsound();

Thank you Steven.



Il 01/05/2017 20:48, Steven Yi ha scritto:
> Hi Andrea,
>
> If the files are copied (the CSD and the .wav), then you shouldn't
> need to change anything with the CSD as Csound will correctly load the
> .wav file relative to the CSD.  For your Android code, you would use
> something like:
>
> File csdPath = new File(Environment.getExternalStorageDirectory() +
> "/sdcard/MyAppCsound_11/voices/test_04.csd");
>
> Then:
>
> csoundObj.startCsound(csdPath);
>
> because csdPath is already a File object. You'll just have to make
> sure the csdPath is the correct path (not sure you need to have
> "/sdcard" as part of the path is
> Environment.getExternalStorageDirectory() is returning that).
>
> steven
>
>
> On Mon, May 1, 2017 at 11:57 AM, Andrea Strappa  wrote:
>> thank you, Steven, for careful explanation.
>>
>> I attempted the first of your three solutions, for now.
>>
>> I used the method:
>>
>> copyFilesToSdCard
>>
>> from:
>> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>>
>> I write this path:
>>
>> final static String TARGET_BASE_PATH = "/sdcard/MyAppCsound_11/voices/";
>>
>> and the .csd and .wav files of 'assets' directory are well copied in the
>> specified path of my phone.
>>
>> I tryed some f2 path:
>>
>> f2 0 65536 1 "sdcard/MyAppCsound_11/voices/f4_pianoforte.wav"
>>
>> and so on.
>>
>> but I can't listen the sample. I tryed also with '\' instead '/'. I have to
>> write another path?
>>
>> What is the folder of temporary .csd file? Perhaps I have to copy the .wav
>> samples here.
>>
>> And what path I have to write here?
>>
>> csoundObj.startCsound((createTempFile(getResourceFileAsString(R.raw.test_04))));
>>
>> I tried with
>>
>> File csdPath = new File(Environment.getExternalStorageDirectory() +
>> "/sdcard/MyAppCsound_11/voices/test_04.csd");
>>
>> Then:
>>
>> csoundObj.startCsound((createTempFile(getResourceFileAsString(csdPath))));
>>
>> But a message errore appears:
>>
>> Error:(77, 51) error: incompatible types: File cannot be converted to int
>> Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
>>> Compilation failed; see the compiler error output for details.
>> from 'BaseCsoundActivity' class.
>>
>> Andrea
>>
>> Il 01/05/2017 02:00, Steven Yi ha scritto:
>>
>> Actually, that seems to be specific to Google Play services, which may
>> not be desirable. To summarize, what I'm understanding is:
>>
>> 1. Package resources with Android project. On start, write to external
>> storage a second copy of files and resources, then run from there.
>> 2. Don't package resources. When program starts, download from
>> external source (maybe hosted on a web server) and unzip to external
>> storage. Run from there.
>> 3. Use expansion files, which also downloads and unpacks to external
>> storage, then run from external storage.
>>
>> If anyone else has ideas, would love to hear them!
>>
>> steven
>>
>>
>> On Sun, Apr 30, 2017 at 7:57 PM, Steven Yi  wrote:
>>
>> BTW: It looks like Android's Expansion files is a system they added to
>> address this kind of issue:
>>
>> https://developer.android.com/google/play/expansion-files.html
>>
>> It seems to download and copy files to external storage automatically,
>> which might also get over the problem of duplicating files within the
>> APK and the external storage.
>>
>> On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi  wrote:
>>
>> Hi Andrea,
>>
>> I took a look at the project and I had to spend a little time to
>> remember the design. Tarmo is correct in that the examples typically
>> write a temporary csd file then run.  What could be done is that when
>> your program first starts, you could take the files from res/raw (or
>> use assets, which I think was added after we first did the Android
>> Csound version) and write them to external storage (which may or may
>> not be an SD card).  After that you could then run Csound using the
>> version from external storage.
>>
>> There's a number of posts about writing to external storage.
>> Something like this:
>>
>> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>>
>> might work.  I myself haven't tried this; perhaps someone else has and
>> can report here?  Also, it might be nice to add an API example for
>> this scenario in the Csound Examples project for Android.  Perhaps
>> someone can contribute such an example.
>>
>> steven
>>
>>
>> On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa  wrote:
>>
>> I sent the project to Steven.
>>
>> I look forward to his precious ispection, before making other attemps.
>>
>> Thank you
>>
>>
>> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>>
>> Hi,
>>
>> I have not written an app on Android for some time but if I remember
>> correct, the csd is copied to temporary file due permissions problem and the
>> sound file is not in the same folder then any more. Can you try to put the
>> sound file to sdcard and set full path  in f2 declaration to test if that
>> was the issue?
>>
>> Hope it helps,
>> Tarmo
>>
>> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>>
>> Hi list,
>>
>> I tested this simple instrument:
>>
>> instr 2
>> iamp = .5
>> icoda = .1
>> xtratim icoda
>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>> asig buzz kenv, 660, 5, 1
>> outs asig, asig
>> endin
>>
>> by Android Studio Java String:
>>
>> String event = String.format("i2 0 1");
>>
>> It plays! But this instrument:
>>
>> instr 3 ;WITH WAV SAMPLE
>> iamp = .5
>> icoda = .1
>> xtratim icoda
>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>> asig oscili kenv, sr*2/ftlen(2), 2
>> outs asig, asig
>> endin
>>
>> by Android Studio Java String:
>>
>> String event = String.format("i3 0 1");
>>
>> with function:
>>
>> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>>
>> Don't play!
>>
>> .csd file and .wav file are in same directory "raw".
>>
>> Although I read in Csound Journal ( Brian Redfern,
>> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>>
>> "I keep it easy and place my impulse files into the same folder as my CSD
>> so I do not have to figure out the path".
>>
>> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with same
>> instrument.
>>
>> Greetings
>>
>> Andrea S.
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
>>
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>          https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>> Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features can
>> be posted here
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>          https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
>

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Fantastic, very glad that is working now!

On Mon, May 1, 2017 at 5:05 PM, Andrea Strappa  wrote:
> Ok! Resolved! I had neglected to changed the parameter in
> csoundObj.startCsound();
>
> Thank you Steven.
>
>
>
>
> Il 01/05/2017 20:48, Steven Yi ha scritto:
>>
>> Hi Andrea,
>>
>> If the files are copied (the CSD and the .wav), then you shouldn't
>> need to change anything with the CSD as Csound will correctly load the
>> .wav file relative to the CSD.  For your Android code, you would use
>> something like:
>>
>> File csdPath = new File(Environment.getExternalStorageDirectory() +
>> "/sdcard/MyAppCsound_11/voices/test_04.csd");
>>
>> Then:
>>
>> csoundObj.startCsound(csdPath);
>>
>> because csdPath is already a File object. You'll just have to make
>> sure the csdPath is the correct path (not sure you need to have
>> "/sdcard" as part of the path is
>> Environment.getExternalStorageDirectory() is returning that).
>>
>> steven
>>
>>
>> On Mon, May 1, 2017 at 11:57 AM, Andrea Strappa  wrote:
>>>
>>> thank you, Steven, for careful explanation.
>>>
>>> I attempted the first of your three solutions, for now.
>>>
>>> I used the method:
>>>
>>> copyFilesToSdCard
>>>
>>> from:
>>>
>>> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>>>
>>> I write this path:
>>>
>>> final static String TARGET_BASE_PATH = "/sdcard/MyAppCsound_11/voices/";
>>>
>>> and the .csd and .wav files of 'assets' directory are well copied in the
>>> specified path of my phone.
>>>
>>> I tryed some f2 path:
>>>
>>> f2 0 65536 1 "sdcard/MyAppCsound_11/voices/f4_pianoforte.wav"
>>>
>>> and so on.
>>>
>>> but I can't listen the sample. I tryed also with '\' instead '/'. I have
>>> to
>>> write another path?
>>>
>>> What is the folder of temporary .csd file? Perhaps I have to copy the
>>> .wav
>>> samples here.
>>>
>>> And what path I have to write here?
>>>
>>>
>>> csoundObj.startCsound((createTempFile(getResourceFileAsString(R.raw.test_04))));
>>>
>>> I tried with
>>>
>>> File csdPath = new File(Environment.getExternalStorageDirectory() +
>>> "/sdcard/MyAppCsound_11/voices/test_04.csd");
>>>
>>> Then:
>>>
>>>
>>> csoundObj.startCsound((createTempFile(getResourceFileAsString(csdPath))));
>>>
>>> But a message errore appears:
>>>
>>> Error:(77, 51) error: incompatible types: File cannot be converted to int
>>> Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
>>>>
>>>> Compilation failed; see the compiler error output for details.
>>>
>>> from 'BaseCsoundActivity' class.
>>>
>>> Andrea
>>>
>>> Il 01/05/2017 02:00, Steven Yi ha scritto:
>>>
>>> Actually, that seems to be specific to Google Play services, which may
>>> not be desirable. To summarize, what I'm understanding is:
>>>
>>> 1. Package resources with Android project. On start, write to external
>>> storage a second copy of files and resources, then run from there.
>>> 2. Don't package resources. When program starts, download from
>>> external source (maybe hosted on a web server) and unzip to external
>>> storage. Run from there.
>>> 3. Use expansion files, which also downloads and unpacks to external
>>> storage, then run from external storage.
>>>
>>> If anyone else has ideas, would love to hear them!
>>>
>>> steven
>>>
>>>
>>> On Sun, Apr 30, 2017 at 7:57 PM, Steven Yi  wrote:
>>>
>>> BTW: It looks like Android's Expansion files is a system they added to
>>> address this kind of issue:
>>>
>>> https://developer.android.com/google/play/expansion-files.html
>>>
>>> It seems to download and copy files to external storage automatically,
>>> which might also get over the problem of duplicating files within the
>>> APK and the external storage.
>>>
>>> On Sun, Apr 30, 2017 at 7:51 PM, Steven Yi  wrote:
>>>
>>> Hi Andrea,
>>>
>>> I took a look at the project and I had to spend a little time to
>>> remember the design. Tarmo is correct in that the examples typically
>>> write a temporary csd file then run.  What could be done is that when
>>> your program first starts, you could take the files from res/raw (or
>>> use assets, which I think was added after we first did the Android
>>> Csound version) and write them to external storage (which may or may
>>> not be an SD card).  After that you could then run Csound using the
>>> version from external storage.
>>>
>>> There's a number of posts about writing to external storage.
>>> Something like this:
>>>
>>>
>>> http://stackoverflow.com/questions/4447477/how-to-copy-files-from-assets-folder-to-sdcard
>>>
>>> might work.  I myself haven't tried this; perhaps someone else has and
>>> can report here?  Also, it might be nice to add an API example for
>>> this scenario in the Csound Examples project for Android.  Perhaps
>>> someone can contribute such an example.
>>>
>>> steven
>>>
>>>
>>> On Sun, Apr 30, 2017 at 12:55 PM, Andrea Strappa 
>>> wrote:
>>>
>>> I sent the project to Steven.
>>>
>>> I look forward to his precious ispection, before making other attemps.
>>>
>>> Thank you
>>>
>>>
>>> Il 30/04/2017 17:14, Tarmo Johannes ha scritto:
>>>
>>> Hi,
>>>
>>> I have not written an app on Android for some time but if I remember
>>> correct, the csd is copied to temporary file due permissions problem and
>>> the
>>> sound file is not in the same folder then any more. Can you try to put
>>> the
>>> sound file to sdcard and set full path  in f2 declaration to test if that
>>> was the issue?
>>>
>>> Hope it helps,
>>> Tarmo
>>>
>>> 30.04.2017 16:20 kirjutas kuupäeval "Andrea Strappa" :
>>>
>>> Hi list,
>>>
>>> I tested this simple instrument:
>>>
>>> instr 2
>>> iamp = .5
>>> icoda = .1
>>> xtratim icoda
>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>> asig buzz kenv, 660, 5, 1
>>> outs asig, asig
>>> endin
>>>
>>> by Android Studio Java String:
>>>
>>> String event = String.format("i2 0 1");
>>>
>>> It plays! But this instrument:
>>>
>>> instr 3 ;WITH WAV SAMPLE
>>> iamp = .5
>>> icoda = .1
>>> xtratim icoda
>>> kenv linsegr 0, .1, iamp, p3-.1, iamp, icoda, 0
>>> asig oscili kenv, sr*2/ftlen(2), 2
>>> outs asig, asig
>>> endin
>>>
>>> by Android Studio Java String:
>>>
>>> String event = String.format("i3 0 1");
>>>
>>> with function:
>>>
>>> f2 0 65536 1 "g4_pianoforte.wav" 0 0 0
>>>
>>> Don't play!
>>>
>>> .csd file and .wav file are in same directory "raw".
>>>
>>> Although I read in Csound Journal ( Brian Redfern,
>>> http://www.csoundjournal.com/issue17/android_csd_player.html ):
>>>
>>> "I keep it easy and place my impulse files into the same folder as my CSD
>>> so I do not have to figure out the path".
>>>
>>> Why can't I listen the GEN01 sample? In CsoundQt I can listen it with
>>> same
>>> instrument.
>>>
>>> Greetings
>>>
>>> Andrea S.
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features
>>> can
>>> be posted here
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features
>>> can
>>> be posted here
>>>
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features
>>> can
>>> be posted here
>>>
>>> Csound mailing list
>>> Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> Send bugs reports to
>>>          https://github.com/csound/csound/issues
>>> Discussions of bugs and features can be posted here
>>>
>>> Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features
>>> can
>>> be posted here
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>          https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Hi list,

I'm a piano teather in a public school, in Italy. I would develop a 
software as support of scholastic musical education.

I imagine an apps collection with a pedagogical progression.

There are a lot of apps about intervals, chords, scales. I think that a 
little boy is most interessed to learn a song that a collection of 
intervals, scales, chords and is better that he plays an acoustic 
instrument before using a tablet or a pc, although those instruments are 
very attractive and useful.

Every app could be a support to learn to play a melody with a little 
xylophone or glockenspiel or recorder, zither, piano, ukulele, guitar, 
violin and so on (you could start with four-five instruments).

At the same time the melody proposed could be an opportunity to improve 
the musical knowledge.

Apps activities: 1) listen seeing instrumental positions, play and rec 
(by mic or touch) the melody; 2) know the pitches of melody; 3) know the 
rhythmical unities of melody; 4) know the tonal degrees of melody; 5) 
learn to intonate the melody (microtuning); 6) compose your melody with 
pitches and  rhythmical unities of melody (drag and drops); 7) know some 
information about melody; 8) play and rec what do you want.

Every activity could be a game, mostly with score, that could be sent to 
teacher.

An apps collection,  could be a good support, both for the children 
learning and for the progress monitoring and for the educational action  
progress.

I began it with Android studio, but I'm not an expert developer. There's 
someone intersted to this project?

All the best

Andrea Strappa

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