Hello there ,
I'm an absolute newbie with csound. I would like to use the LineIn of my
Behringer UCA202 with out latency problems -> real time audio
now to my test. So I want to spend the LineIn of my UAC202 directly again.

*my orc:*


/;===========
; toot01.orc 
;===========

sr		=		44100
kr		=		4410
ksmps 	=		10
nchnls	=		1

		instr 1
a1		oscil	10000, 440, 1
		out		a1
		endin
/

*my command line input and output:*

/root@innotune:~# csound -i dsnoop01 -orc /var/www/Toots/toot01.orc -o
LineIn01
PortAudio real-time audio module for Csound
virtual_keyboard real time MIDI plugin for Csound
PortMIDI real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 5.17 (double samples) Apr  6 2013
libsndfile-1.0.25
orchname:  /var/www/Toots/toot01.orc
rtmidi: PortMIDI module enabled
RAWWAVE_PATH: /usr/share/stk/rawwaves/
rtaudio: PortAudio module enabled ... using blocking interface
Parsing successful!
Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.010s
Csound tidy up: Segmentation fault
root@innotune:~#/

*pieces of my asound.conf:*

/pcm.dmixer01 { 
    type dmix 
    ipc_key 1024
    ipc_key_add_uid false
    ipc_perm 0666
    slave { 
        pcm "hw:01,0" 
#        period_time 0 
#        period_size 1024 
#        buffer_size 16384
#        rate 44100
    }
}

pcm.dsnoop01 {
    type dsnoop
    ipc_key 2048
    ipc_perm 0666
    slave {
        pcm "hw:01,0" 
#        rate 44100
        channels 2 
    }
}

pcm.LineIn01 {
    type softvol
    slave.pcm "MuteIfAirplay01"
    control.name LineIn_01
    control.card 01
}
/

*my asound.conf works so far with the command: *

 / arecord -f cd -D dsnoop01 | aplay -D LineIn01/

now I want to get this thing with csound up and running.


I hope for support 

THX




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Your command kine tries to write the audio to a file called 
LineIn01 and not to the real-time output.  I am not expert at using alsa 
but I would expect something starting -o dac:.....
   I am sure one of our users knows the answer in detail
==John ff

On Thu, 23 Jul 2015, sevi wrote:

> Hello there ,
> I'm an absolute newbie with csound. I would like to use the LineIn of my
> Behringer UCA202 with out latency problems -> real time audio
> now to my test. So I want to spend the LineIn of my UAC202 directly again.
>
> *my orc:*
>
>
> /;===========
> ; toot01.orc
> ;===========
>
> sr		=		44100
> kr		=		4410
> ksmps 	=		10
> nchnls	=		1
>
> 		instr 1
> a1		oscil	10000, 440, 1
> 		out		a1
> 		endin
> /
>
> *my command line input and output:*
>
> /root@innotune:~# csound -i dsnoop01 -orc /var/www/Toots/toot01.orc -o
> LineIn01
> PortAudio real-time audio module for Csound
> virtual_keyboard real time MIDI plugin for Csound
> PortMIDI real time MIDI plugin for Csound
> 0dBFS level = 32768.0
> Csound version 5.17 (double samples) Apr  6 2013
> libsndfile-1.0.25
> orchname:  /var/www/Toots/toot01.orc
> rtmidi: PortMIDI module enabled
> RAWWAVE_PATH: /usr/share/stk/rawwaves/
> rtaudio: PortAudio module enabled ... using blocking interface
> Parsing successful!
> Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.010s
> Csound tidy up: Segmentation fault
> root@innotune:~#/
>
> *pieces of my asound.conf:*
>
> /pcm.dmixer01 {
>    type dmix
>    ipc_key 1024
>    ipc_key_add_uid false
>    ipc_perm 0666
>    slave {
>        pcm "hw:01,0"
> #        period_time 0
> #        period_size 1024
> #        buffer_size 16384
> #        rate 44100
>    }
> }
>
> pcm.dsnoop01 {
>    type dsnoop
>    ipc_key 2048
>    ipc_perm 0666
>    slave {
>        pcm "hw:01,0"
> #        rate 44100
>        channels 2
>    }
> }
>
> pcm.LineIn01 {
>    type softvol
>    slave.pcm "MuteIfAirplay01"
>    control.name LineIn_01
>    control.card 01
> }
> /
>
> *my asound.conf works so far with the command: *
>
> / arecord -f cd -D dsnoop01 | aplay -D LineIn01/
>
> now I want to get this thing with csound up and running.
>
>
> I hope for support
>
> THX
>
>
>
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
> ------------------------------------------------------------------------------
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>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
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Try this:



-+rtaudio=alsa -iadc -odac


sr = 44100
ksmps = 64
nchnls = 2
0dbfs=1

instr 1
a1 inch 1
outs a1, a1
endin



i1 0 3600



Just save it and run:

csound filename.csd


On 23 July 2015 at 10:39, jpff  wrote:
> Your command kine tries to write the audio to a file called
> LineIn01 and not to the real-time output.  I am not expert at using alsa
> but I would expect something starting -o dac:.....
>    I am sure one of our users knows the answer in detail
> ==John ff
>
> On Thu, 23 Jul 2015, sevi wrote:
>
>> Hello there ,
>> I'm an absolute newbie with csound. I would like to use the LineIn of my
>> Behringer UCA202 with out latency problems -> real time audio
>> now to my test. So I want to spend the LineIn of my UAC202 directly again.
>>
>> *my orc:*
>>
>>
>> /;===========
>> ; toot01.orc
>> ;===========
>>
>> sr            =               44100
>> kr            =               4410
>> ksmps         =               10
>> nchnls        =               1
>>
>>               instr 1
>> a1            oscil   10000, 440, 1
>>               out             a1
>>               endin
>> /
>>
>> *my command line input and output:*
>>
>> /root@innotune:~# csound -i dsnoop01 -orc /var/www/Toots/toot01.orc -o
>> LineIn01
>> PortAudio real-time audio module for Csound
>> virtual_keyboard real time MIDI plugin for Csound
>> PortMIDI real time MIDI plugin for Csound
>> 0dBFS level = 32768.0
>> Csound version 5.17 (double samples) Apr  6 2013
>> libsndfile-1.0.25
>> orchname:  /var/www/Toots/toot01.orc
>> rtmidi: PortMIDI module enabled
>> RAWWAVE_PATH: /usr/share/stk/rawwaves/
>> rtaudio: PortAudio module enabled ... using blocking interface
>> Parsing successful!
>> Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.010s
>> Csound tidy up: Segmentation fault
>> root@innotune:~#/
>>
>> *pieces of my asound.conf:*
>>
>> /pcm.dmixer01 {
>>    type dmix
>>    ipc_key 1024
>>    ipc_key_add_uid false
>>    ipc_perm 0666
>>    slave {
>>        pcm "hw:01,0"
>> #        period_time 0
>> #        period_size 1024
>> #        buffer_size 16384
>> #        rate 44100
>>    }
>> }
>>
>> pcm.dsnoop01 {
>>    type dsnoop
>>    ipc_key 2048
>>    ipc_perm 0666
>>    slave {
>>        pcm "hw:01,0"
>> #        rate 44100
>>        channels 2
>>    }
>> }
>>
>> pcm.LineIn01 {
>>    type softvol
>>    slave.pcm "MuteIfAirplay01"
>>    control.name LineIn_01
>>    control.card 01
>> }
>> /
>>
>> *my asound.conf works so far with the command: *
>>
>> / arecord -f cd -D dsnoop01 | aplay -D LineIn01/
>>
>> now I want to get this thing with csound up and running.
>>
>>
>> I hope for support
>>
>> THX
>>
>>
>>
>>
>> --
>> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844.html
>> Sent from the Csound - General mailing list archive at Nabble.com.
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Csound-users mailing list
>> Csound-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/csound-users
>> Send bugs reports to
>>        https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>
> ------------------------------------------------------------------------------
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By the way, if you wish to see what devices are available change the
CsOptions to this:

-+rtaudio=alsa -iadc99 -odac99

that will list the different devices available. Then you can do something like:

-+rtaudio=alsa -iadc:hw:1,0 -odac:hw:1,1



On 23 July 2015 at 10:54, Rory Walsh  wrote:
> Try this:
>
> 
> 
> -+rtaudio=alsa -iadc -odac
> 
> 
> sr = 44100
> ksmps = 64
> nchnls = 2
> 0dbfs=1
>
> instr 1
> a1 inch 1
> outs a1, a1
> endin
>
> 
> 
> i1 0 3600
> 
> 
>
> Just save it and run:
>
> csound filename.csd
>
>
> On 23 July 2015 at 10:39, jpff  wrote:
>> Your command kine tries to write the audio to a file called
>> LineIn01 and not to the real-time output.  I am not expert at using alsa
>> but I would expect something starting -o dac:.....
>>    I am sure one of our users knows the answer in detail
>> ==John ff
>>
>> On Thu, 23 Jul 2015, sevi wrote:
>>
>>> Hello there ,
>>> I'm an absolute newbie with csound. I would like to use the LineIn of my
>>> Behringer UCA202 with out latency problems -> real time audio
>>> now to my test. So I want to spend the LineIn of my UAC202 directly again.
>>>
>>> *my orc:*
>>>
>>>
>>> /;===========
>>> ; toot01.orc
>>> ;===========
>>>
>>> sr            =               44100
>>> kr            =               4410
>>> ksmps         =               10
>>> nchnls        =               1
>>>
>>>               instr 1
>>> a1            oscil   10000, 440, 1
>>>               out             a1
>>>               endin
>>> /
>>>
>>> *my command line input and output:*
>>>
>>> /root@innotune:~# csound -i dsnoop01 -orc /var/www/Toots/toot01.orc -o
>>> LineIn01
>>> PortAudio real-time audio module for Csound
>>> virtual_keyboard real time MIDI plugin for Csound
>>> PortMIDI real time MIDI plugin for Csound
>>> 0dBFS level = 32768.0
>>> Csound version 5.17 (double samples) Apr  6 2013
>>> libsndfile-1.0.25
>>> orchname:  /var/www/Toots/toot01.orc
>>> rtmidi: PortMIDI module enabled
>>> RAWWAVE_PATH: /usr/share/stk/rawwaves/
>>> rtaudio: PortAudio module enabled ... using blocking interface
>>> Parsing successful!
>>> Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.010s
>>> Csound tidy up: Segmentation fault
>>> root@innotune:~#/
>>>
>>> *pieces of my asound.conf:*
>>>
>>> /pcm.dmixer01 {
>>>    type dmix
>>>    ipc_key 1024
>>>    ipc_key_add_uid false
>>>    ipc_perm 0666
>>>    slave {
>>>        pcm "hw:01,0"
>>> #        period_time 0
>>> #        period_size 1024
>>> #        buffer_size 16384
>>> #        rate 44100
>>>    }
>>> }
>>>
>>> pcm.dsnoop01 {
>>>    type dsnoop
>>>    ipc_key 2048
>>>    ipc_perm 0666
>>>    slave {
>>>        pcm "hw:01,0"
>>> #        rate 44100
>>>        channels 2
>>>    }
>>> }
>>>
>>> pcm.LineIn01 {
>>>    type softvol
>>>    slave.pcm "MuteIfAirplay01"
>>>    control.name LineIn_01
>>>    control.card 01
>>> }
>>> /
>>>
>>> *my asound.conf works so far with the command: *
>>>
>>> / arecord -f cd -D dsnoop01 | aplay -D LineIn01/
>>>
>>> now I want to get this thing with csound up and running.
>>>
>>>
>>> I hope for support
>>>
>>> THX
>>>
>>>
>>>
>>>
>>> --
>>> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844.html
>>> Sent from the Csound - General mailing list archive at Nabble.com.
>>>
>>> ------------------------------------------------------------------------------
>>> _______________________________________________
>>> Csound-users mailing list
>>> Csound-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/csound-users
>>> Send bugs reports to
>>>        https://github.com/csound/csound/issues
>>> Discussions of bugs and features can be posted here
>>>
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Csound-users mailing list
>> Csound-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/csound-users
>> Send bugs reports to
>>         https://github.com/csound/csound/issues
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hy,
many thanks! it works 
Unfortunately, I have a little problem with the latenzy.

*my config:*

/

-+rtaudio=alsa -iadc:dsnoop01 -odac:LineIn01


sr = 44100
ksmps = 64
nchnls = 2
0dbfs=1

instr 1
a1 inch 1
outs a1, a1
endin



i1 0 3600

/

*my output after start:*

/root@innotune:~# csound /var/www/csound_linein.csd
PortAudio real-time audio module for Csound
virtual_keyboard real time MIDI plugin for Csound
PortMIDI real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 5.17 (double samples) Apr  6 2013
libsndfile-1.0.25
UnifiedCSD:  /var/www/csound_linein.csd
STARTING FILE
Creating options
Creating orchestra
Creating score
rtmidi: PortMIDI module enabled
rtaudio: ALSA module enabled
RAWWAVE_PATH: /usr/share/stk/rawwaves/
Parsing successful!
Elapsed time at end of orchestra compile: real: 0.009s, CPU: 0.010s
sorting score ...
        ... done
Elapsed time at end of score sort: real: 0.010s, CPU: 0.010s
Csound version 5.17 (double samples) Apr  6 2013
graphics not supported on this terminal, ascii substituted
0dBFS level = 1.0
orch now loaded
audio buffered in 256 sample-frame blocks
 *** rate set to 48000
ALSA: -B 1024 not allowed on this device; using 12000 instead
ALSA: -b 256 not allowed on this device; using 6000 instead
ALSA input: total buffer size: 12000, period size: 6000
reading 1024-byte blks of shorts from adc:dsnoop01 (RAW)
 *** rate set to 48000
ALSA: -B 1024 not allowed on this device; using 12000 instead
ALSA: -b 256 not allowed on this device; using 6000 instead
ALSA output: total buffer size: 12000, period size: 6000
writing 512 sample blks of 64-bit floats to dac:LineIn01
SECTION 1:
new alloc for instr 1:
WARNING: Buffer underrun in real-time audio output
WARNING: Buffer underrun in real-time audio output/

*my output after stop:*

/^CCsound tidy up: Interrupt
Early return from csoundPerform().
inactive allocs returned to freespace
end of score.              overall amps:  0.00140  0.00140
           overall samples out of range:        0        0
0 errors in performance
Elapsed time at end of performance: real: 33.145s, CPU: 0.580s
6165 512 sample blks of 64-bit floats written to dac:LineIn01
root@innotune:~#/

*if I speak directly- without asound.conf the hardware like:*

/-+rtaudio=alsa -iadc:hw:1,0 -odac:hw:1,0/

i have no problems. any ideas?


THX










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You're last line states that you have no problems? So what's the problem?

On 23 July 2015 at 11:33, sevi  wrote:
> hy,
> many thanks! it works
> Unfortunately, I have a little problem with the latenzy.
>
> *my config:*
>
> /
> 
> -+rtaudio=alsa -iadc:dsnoop01 -odac:LineIn01
> 
> 
> sr = 44100
> ksmps = 64
> nchnls = 2
> 0dbfs=1
>
> instr 1
> a1 inch 1
> outs a1, a1
> endin
>
> 
> 
> i1 0 3600
> 
> /
>
> *my output after start:*
>
> /root@innotune:~# csound /var/www/csound_linein.csd
> PortAudio real-time audio module for Csound
> virtual_keyboard real time MIDI plugin for Csound
> PortMIDI real time MIDI plugin for Csound
> 0dBFS level = 32768.0
> Csound version 5.17 (double samples) Apr  6 2013
> libsndfile-1.0.25
> UnifiedCSD:  /var/www/csound_linein.csd
> STARTING FILE
> Creating options
> Creating orchestra
> Creating score
> rtmidi: PortMIDI module enabled
> rtaudio: ALSA module enabled
> RAWWAVE_PATH: /usr/share/stk/rawwaves/
> Parsing successful!
> Elapsed time at end of orchestra compile: real: 0.009s, CPU: 0.010s
> sorting score ...
>         ... done
> Elapsed time at end of score sort: real: 0.010s, CPU: 0.010s
> Csound version 5.17 (double samples) Apr  6 2013
> graphics not supported on this terminal, ascii substituted
> 0dBFS level = 1.0
> orch now loaded
> audio buffered in 256 sample-frame blocks
>  *** rate set to 48000
> ALSA: -B 1024 not allowed on this device; using 12000 instead
> ALSA: -b 256 not allowed on this device; using 6000 instead
> ALSA input: total buffer size: 12000, period size: 6000
> reading 1024-byte blks of shorts from adc:dsnoop01 (RAW)
>  *** rate set to 48000
> ALSA: -B 1024 not allowed on this device; using 12000 instead
> ALSA: -b 256 not allowed on this device; using 6000 instead
> ALSA output: total buffer size: 12000, period size: 6000
> writing 512 sample blks of 64-bit floats to dac:LineIn01
> SECTION 1:
> new alloc for instr 1:
> WARNING: Buffer underrun in real-time audio output
> WARNING: Buffer underrun in real-time audio output/
>
> *my output after stop:*
>
> /^CCsound tidy up: Interrupt
> Early return from csoundPerform().
> inactive allocs returned to freespace
> end of score.              overall amps:  0.00140  0.00140
>            overall samples out of range:        0        0
> 0 errors in performance
> Elapsed time at end of performance: real: 33.145s, CPU: 0.580s
> 6165 512 sample blks of 64-bit floats written to dac:LineIn01
> root@innotune:~#/
>
> *if I speak directly- without asound.conf the hardware like:*
>
> /-+rtaudio=alsa -iadc:hw:1,0 -odac:hw:1,0/
>
> i have no problems. any ideas?
>
>
> THX
>
>
>
>
>
>
>
>
>
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5742851.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
> ------------------------------------------------------------------------------
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hy,
again, if I speak directly with my Behringer UAC202 like this: 

/-+rtaudio=alsa -iadc:hw:1,0 -odac:hw:1,0/ 
 
i have no problems. BUT if i routes my LineIn to the LineOut over my
asound.conf with:

/ -+rtaudio=alsa -iadc:dsnoop01 -odac:LineIn01/

then i have a bad latenzy and the saound is slower as the video on my TV.

any ideas?

many THX!

 



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I'm not sure why that is. What does Csound print when you do -iadc99 -odac99?

On 23 July 2015 at 14:09, sevi  wrote:
> hy,
> again, if I speak directly with my Behringer UAC202 like this:
>
> /-+rtaudio=alsa -iadc:hw:1,0 -odac:hw:1,0/
>
> i have no problems. BUT if i routes my LineIn to the LineOut over my
> asound.conf with:
>
> / -+rtaudio=alsa -iadc:dsnoop01 -odac:LineIn01/
>
> then i have a bad latenzy and the saound is slower as the video on my TV.
>
> any ideas?
>
> many THX!
>
>
>
>
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5742855.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
> ------------------------------------------------------------------------------
> _______________________________________________
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> Csound-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-users
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

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Hy,

/root@innotune:~# csound /var/www/csound_linein.csd
PortAudio real-time audio module for Csound
virtual_keyboard real time MIDI plugin for Csound
PortMIDI real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 5.17 (double samples) Apr  6 2013
libsndfile-1.0.25
UnifiedCSD:  /var/www/csound_linein.csd
STARTING FILE
Creating options
Creating orchestra
Creating score
rtmidi: PortMIDI module enabled
rtaudio: ALSA module enabled
RAWWAVE_PATH: /usr/share/stk/rawwaves/
Parsing successful!
Elapsed time at end of orchestra compile: real: 0.009s, CPU: 0.010s
sorting score ...
        ... done
Elapsed time at end of score sort: real: 0.010s, CPU: 0.010s
Csound version 5.17 (double samples) Apr  6 2013
graphics not supported on this terminal, ascii substituted
0dBFS level = 1.0
orch now loaded
audio buffered in 256 sample-frame blocks
 *** ALSA: must specify a device name, not a number (e.g. -odac:hw:0,0)
 "hw:0,0" - Playback HiFi-0 :  : playback 1 : capture 1
 "hw:0,1" - Capture HiFi-1 :  : playback 1 : capture 1
 "hw:1,0" - USB Audio : USB Audio : playback 1 : capture 1
 "hw:2,0" - USB Audio : USB Audio : playback 1 : capture 1
Failed to initialise real time audio input
inactive allocs returned to freespace
end of score.              overall amps:  0.00000  0.00000
           overall samples out of range:        0        0
1 errors in performance
Elapsed time at end of performance: real: 0.011s, CPU: 0.010s
root@innotune:~#/


but i need the ALSA config to audio mixing.

THX




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Sorry, I don't know anything about asound.conf. I just access my sound
cards directly.

On 23 July 2015 at 13:28, sevi  wrote:
>
> Hy,
>
> /root@innotune:~# csound /var/www/csound_linein.csd
> PortAudio real-time audio module for Csound
> virtual_keyboard real time MIDI plugin for Csound
> PortMIDI real time MIDI plugin for Csound
> 0dBFS level = 32768.0
> Csound version 5.17 (double samples) Apr  6 2013
> libsndfile-1.0.25
> UnifiedCSD:  /var/www/csound_linein.csd
> STARTING FILE
> Creating options
> Creating orchestra
> Creating score
> rtmidi: PortMIDI module enabled
> rtaudio: ALSA module enabled
> RAWWAVE_PATH: /usr/share/stk/rawwaves/
> Parsing successful!
> Elapsed time at end of orchestra compile: real: 0.009s, CPU: 0.010s
> sorting score ...
>         ... done
> Elapsed time at end of score sort: real: 0.010s, CPU: 0.010s
> Csound version 5.17 (double samples) Apr  6 2013
> graphics not supported on this terminal, ascii substituted
> 0dBFS level = 1.0
> orch now loaded
> audio buffered in 256 sample-frame blocks
>  *** ALSA: must specify a device name, not a number (e.g. -odac:hw:0,0)
>  "hw:0,0" - Playback HiFi-0 :  : playback 1 : capture 1
>  "hw:0,1" - Capture HiFi-1 :  : playback 1 : capture 1
>  "hw:1,0" - USB Audio : USB Audio : playback 1 : capture 1
>  "hw:2,0" - USB Audio : USB Audio : playback 1 : capture 1
> Failed to initialise real time audio input
> inactive allocs returned to freespace
> end of score.              overall amps:  0.00000  0.00000
>            overall samples out of range:        0        0
> 1 errors in performance
> Elapsed time at end of performance: real: 0.011s, CPU: 0.010s
> root@innotune:~#/
>
>
> but i need the ALSA config to audio mixing.
>
> THX
>
>
>
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5742857.html
> Sent from the Csound - General mailing list archive at Nabble.com.
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Hi!

You can set "period_size" and "buffer_size" for both the dmix device and the dsnoop device, e.g.:

pcm.dsnooper  {
        type dsnoop
        ipc_key 1024
        slave {
                pcm "hw:0,1
                period_size 64
                buffer_size 256
        }
        bindings {
                0 0
                1 1
        }
}

That way you might reduce latency and/or stuttering. You would likely want to relate your ksmps value in your csd-file to the buffer and period sizes in asound.conf, since one batch of ksmps audio samples is rendered in each csound cycle, so the realtime sync to the audio card buffer handling will be kept tight. 

I suggest reading http://csound.github.io/docs/manual/UsingRealTime.html#RealTimeLinux especially the section about "Output with dmix" which should be valid for dsnoop as well. 


Someone on this list did some experimenting with buffer sizes for csound on raspberry pi a while ago, but I cannot remember who it was... 

Regards,
Anders

> 23 jul 2015 kl. 15:18 skrev Rory Walsh :
> 
> Sorry, I don't know anything about asound.conf. I just access my sound
> cards directly.
> 
>> On 23 July 2015 at 13:28, sevi  wrote:
>> 
>> Hy,
>> 
>> /root@innotune:~# csound /var/www/csound_linein.csd
>> PortAudio real-time audio module for Csound
>> virtual_keyboard real time MIDI plugin for Csound
>> PortMIDI real time MIDI plugin for Csound
>> 0dBFS level = 32768.0
>> Csound version 5.17 (double samples) Apr  6 2013
>> libsndfile-1.0.25
>> UnifiedCSD:  /var/www/csound_linein.csd
>> STARTING FILE
>> Creating options
>> Creating orchestra
>> Creating score
>> rtmidi: PortMIDI module enabled
>> rtaudio: ALSA module enabled
>> RAWWAVE_PATH: /usr/share/stk/rawwaves/
>> Parsing successful!
>> Elapsed time at end of orchestra compile: real: 0.009s, CPU: 0.010s
>> sorting score ...
>>        ... done
>> Elapsed time at end of score sort: real: 0.010s, CPU: 0.010s
>> Csound version 5.17 (double samples) Apr  6 2013
>> graphics not supported on this terminal, ascii substituted
>> 0dBFS level = 1.0
>> orch now loaded
>> audio buffered in 256 sample-frame blocks
>> *** ALSA: must specify a device name, not a number (e.g. -odac:hw:0,0)
>> "hw:0,0" - Playback HiFi-0 :  : playback 1 : capture 1
>> "hw:0,1" - Capture HiFi-1 :  : playback 1 : capture 1
>> "hw:1,0" - USB Audio : USB Audio : playback 1 : capture 1
>> "hw:2,0" - USB Audio : USB Audio : playback 1 : capture 1
>> Failed to initialise real time audio input
>> inactive allocs returned to freespace
>> end of score.              overall amps:  0.00000  0.00000
>>           overall samples out of range:        0        0
>> 1 errors in performance
>> Elapsed time at end of performance: real: 0.011s, CPU: 0.010s
>> root@innotune:~#/
>> 
>> 
>> but i need the ALSA config to audio mixing.
>> 
>> THX
>> 
>> 
>> 
>> 
>> --
>> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5742857.html
>> Sent from the Csound - General mailing list archive at Nabble.com.
>> 
>> ------------------------------------------------------------------------------
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hy,
works already not so bad! perfect!
but i have very slight difference between sound and video on my TV. maybe i
could optimize that.

now my configs:

*asound.conf*

/
pcm.dmixer01 { 
    type dmix 
    ipc_key 1024
    ipc_key_add_uid false
    ipc_perm 0666
    slave { 
        pcm "hw:01,0" 
#        period_time 0 
        period_size 1536 
        buffer_size 12288
#        rate 44100
    }
}

pcm.dsnoop01 {
    type dsnoop
    ipc_key 2048
    ipc_perm 0666
    slave {
        pcm "hw:01,0" 
        period_size 1536 
        buffer_size 12288 
        } 
        bindings { 
                0 0 
                1 1 
        } 
}/

*csound.cds*

/

-+rtaudio=alsa -iadc:dsnoop01 -odac:LineIn01


sr = 44100
ksmps = 64
nchnls = 2
0dbfs=1

instr 1
a1 inch 1
outs a1, a1
endin



i1 0 3600

/

*my terminal output:*

/root@innotune:~# csound /var/www/create_linein/csound_linein01.csd
PortAudio real-time audio module for Csound
virtual_keyboard real time MIDI plugin for Csound
PortMIDI real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 5.17 (double samples) Apr  6 2013
libsndfile-1.0.25
UnifiedCSD:  /var/www/create_linein/csound_linein01.csd
STARTING FILE
Creating options
Creating orchestra
Creating score
rtmidi: PortMIDI module enabled
rtaudio: ALSA module enabled
RAWWAVE_PATH: /usr/share/stk/rawwaves/
Parsing successful!
Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.010s
sorting score ...
        ... done
Elapsed time at end of score sort: real: 0.008s, CPU: 0.010s
Csound version 5.17 (double samples) Apr  6 2013
graphics not supported on this terminal, ascii substituted
0dBFS level = 1.0
orch now loaded
audio buffered in 256 sample-frame blocks
 *** rate set to 48000
ALSA: -B 1024 not allowed on this device; using 3072 instead
ALSA: -b 256 not allowed on this device; using 1536 instead
ALSA input: total buffer size: 3072, period size: 1536
reading 1024-byte blks of shorts from adc:dsnoop01 (RAW)
 *** rate set to 48000
ALSA: -B 1024 not allowed on this device; using 3072 instead
ALSA: -b 256 not allowed on this device; using 1536 instead
ALSA output: total buffer size: 3072, period size: 1536
writing 512 sample blks of 64-bit floats to dac:LineIn01
SECTION 1:
new alloc for instr 1:
^CCsound tidy up: Interrupt
Early return from csoundPerform().
inactive allocs returned to freespace
end of score.              overall amps:  0.00055  0.00055
           overall samples out of range:        0        0
0 errors in performance
Elapsed time at end of performance: real: 8.326s, CPU: 0.170s
1549 512 sample blks of 64-bit floats written to dac:LineIn01/


maybe someone has an idea and could help me .

thank you! 






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Hy again,
i have again problems with my csound config with alsa.
my problem is i don´t no the reference from my csound.csd to my asound.conf
detailed is about the
period size and puffer size.
*
csound.csd:*


-+rtaudio=alsa -b 512 -B4096 -iadc:dsnoop01 -odac:LineIn01


sr = 44100
ksmps = 64
nchnls = 2
0dbfs=1

instr 1
a1 inch 1
outs a1, a1
endin



i1 0 3600



*asound.conf*
##################################################################
Soundkarte 01 Modus: Stereo
##################################################################
Wiedergabe auf Hardware
pcm.dmixer01 { 
    type dmix 
    ipc_key 100124
    ipc_key_add_uid false
    ipc_perm 0666
    slave { 
        pcm "hw:01,0" 
#        period_time 0 
        period_size 1536 
        buffer_size 12288
        rate 44100
        }
        bindings { 
                0 0 
                1 1 
        } 
}
################################################################## Aufnahme
Line-In
pcm.dsnoop01 {
    type dsnoop
    ipc_key 200148
    ipc_perm 0666
    slave {
        pcm "hw:01,0" 
        period_size 1536
        buffer_size 12288 
        } 
        bindings { 
                0 0 
                1 1 
        } 
}

*output:*
root@innotune:~# csound /var/www/create_linein/csound_linein01.csd
virtual_keyboard real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 6.03.2 (double samples) Aug 23 2014
libsndfile-1.0.25
UnifiedCSD:  /var/www/create_linein/csound_linein01.csd
STARTING FILE
Creating options
Creating orchestra
Creating score
rtaudio: ALSA module enabled
rtmidi: ALSA Raw MIDI module enabled
Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.007s
sorting score ...
        ... done
Elapsed time at end of score sort: real: 0.008s, CPU: 0.008s
--Csound version 6.03.2 (double samples) Aug 23 2014
graphics suppressed, ascii substituted
0dBFS level = 1.0
orch now loaded
audio buffered in 512 sample-frame blocks
 *** rate set to 48000
ALSA: -B 4096 not allowed on this device; using 4608 instead
ALSA: -b 512 not allowed on this device; using 1536 instead
ALSA input: total buffer size: 4608, period size: 1536
reading 2048-byte blks of shorts from adc:dsnoop01 (RAW)
ALSA: -B 4096 not allowed on this device; using 4608 instead
ALSA: -b 512 not allowed on this device; using 1536 instead
ALSA output: total buffer size: 4608, period size: 1536
writing 1024 sample blks of 64-bit floats to dac:LineIn01
SECTION 1:
new alloc for instr 1:
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer underrun in real-time audio output
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
WARNING: Buffer overrun in real-time audio input
^CCsound tidy up: Interrupt
Early return from csoundPerform().
inactive allocs returned to freespace
end of score.              overall amps:  0.11639  0.11639
           overall samples out of range:        0        0
0 errors in performance
Elapsed time at end of performance: real: 18.276s, CPU: 0.534s
1554 1024 sample blks of 64-bit floats written to dac:LineIn01
root@innotune:~#


Unfortunately, I have always 
WARNING: Buffer overrun in real-time audio input or
WARNING: Buffer underrun in real-time audio output
Sound is therefor not good!

I have already tried a lot of settings but unfortunately without success :(


Please help!

THX








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Do you know if you have pulseaudio installed?

Regards
Anders

> 11 jan. 2016 kl. 08:56 skrev sevi :
> 
> Hy again,
> i have again problems with my csound config with alsa.
> my problem is i don´t no the reference from my csound.csd to my asound.conf
> detailed is about the
> period size and puffer size.
> *
> csound.csd:*
> 
> 
> -+rtaudio=alsa -b 512 -B4096 -iadc:dsnoop01 -odac:LineIn01
> 
> 
> sr = 44100
> ksmps = 64
> nchnls = 2
> 0dbfs=1
> 
> instr 1
> a1 inch 1
> outs a1, a1
> endin
> 
> 
> 
> i1 0 3600
> 
> 
> 
> *asound.conf*
> ##################################################################
> Soundkarte 01 Modus: Stereo
> ##################################################################
> Wiedergabe auf Hardware
> pcm.dmixer01 { 
>    type dmix 
>    ipc_key 100124
>    ipc_key_add_uid false
>    ipc_perm 0666
>    slave { 
>        pcm "hw:01,0" 
> #        period_time 0 
>        period_size 1536 
>        buffer_size 12288
>        rate 44100
>        }
>        bindings { 
>                0 0 
>                1 1 
>        } 
> }
> ################################################################## Aufnahme
> Line-In
> pcm.dsnoop01 {
>    type dsnoop
>    ipc_key 200148
>    ipc_perm 0666
>    slave {
>        pcm "hw:01,0" 
>        period_size 1536
>        buffer_size 12288 
>        } 
>        bindings { 
>                0 0 
>                1 1 
>        } 
> }
> 
> *output:*
> root@innotune:~# csound /var/www/create_linein/csound_linein01.csd
> virtual_keyboard real time MIDI plugin for Csound
> 0dBFS level = 32768.0
> Csound version 6.03.2 (double samples) Aug 23 2014
> libsndfile-1.0.25
> UnifiedCSD:  /var/www/create_linein/csound_linein01.csd
> STARTING FILE
> Creating options
> Creating orchestra
> Creating score
> rtaudio: ALSA module enabled
> rtmidi: ALSA Raw MIDI module enabled
> Elapsed time at end of orchestra compile: real: 0.008s, CPU: 0.007s
> sorting score ...
>        ... done
> Elapsed time at end of score sort: real: 0.008s, CPU: 0.008s
> --Csound version 6.03.2 (double samples) Aug 23 2014
> graphics suppressed, ascii substituted
> 0dBFS level = 1.0
> orch now loaded
> audio buffered in 512 sample-frame blocks
> *** rate set to 48000
> ALSA: -B 4096 not allowed on this device; using 4608 instead
> ALSA: -b 512 not allowed on this device; using 1536 instead
> ALSA input: total buffer size: 4608, period size: 1536
> reading 2048-byte blks of shorts from adc:dsnoop01 (RAW)
> ALSA: -B 4096 not allowed on this device; using 4608 instead
> ALSA: -b 512 not allowed on this device; using 1536 instead
> ALSA output: total buffer size: 4608, period size: 1536
> writing 1024 sample blks of 64-bit floats to dac:LineIn01
> SECTION 1:
> new alloc for instr 1:
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer underrun in real-time audio output
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> WARNING: Buffer overrun in real-time audio input
> ^CCsound tidy up: Interrupt
> Early return from csoundPerform().
> inactive allocs returned to freespace
> end of score.              overall amps:  0.11639  0.11639
>           overall samples out of range:        0        0
> 0 errors in performance
> Elapsed time at end of performance: real: 18.276s, CPU: 0.534s
> 1554 1024 sample blks of 64-bit floats written to dac:LineIn01
> root@innotune:~#
> 
> 
> Unfortunately, I have always 
> WARNING: Buffer overrun in real-time audio input or
> WARNING: Buffer underrun in real-time audio output
> Sound is therefor not good!
> 
> I have already tried a lot of settings but unfortunately without success :(
> 
> 
> Please help!
> 
> THX
> 
> 
> 
> 
> 
> 
> 
> 
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5746180.html
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hy,
thx for the fast reply. No i dont have pulse-audio installed. i need csound
with a dmix sample rate of 44100 because I 've also run shairort and
shairport need 44100. at all is this possible with csound?

thx
 



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If you can live with 44100 within csound too, you can set 
sr=44100
in you csd or add as command line flag. 
For using csound with dmix, and for setting corresponding buffer values, I recommend reading the "Output with dmix" section in the manual:
http://csound.github.io/docs/manual/UsingRealTime.html#RealTimeLinux

Regards,
Anders



> 11 jan. 2016 kl. 10:03 skrev sevi :
> 
> hy,
> thx for the fast reply. No i dont have pulse-audio installed. i need csound
> with a dmix sample rate of 44100 because I 've also run shairort and
> shairport need 44100. at all is this possible with csound?
> 
> thx
> 
> 
> 
> 
> --
> View this message in context: http://csound.1045644.n5.nabble.com/newbie-need-help-with-raspberry-and-csound-tp5742844p5746182.html
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Hy
thx for the answer. i read the doc "Output with dmix" but it does not work 

if i write in csound.csd sr44100 and also in asound.conf and the same period
and puffer size i have under or overrun.

i think 44100 in asound.conf is not possibel in csound.

http://sourceforge.net/p/csound/mailman/message/12830583/

i dont know...... 



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Hy,

/"First, in your csd you have " -odac:LineIn01" but in your asound.conf
there is "pcm.dmixer01"
Do you actually have an alsa device called LineIn01?"/

-> yes i have a alsa device with LineIn01 I posted only fragments of my
asound.conf

/"Second, in your asound.conf you set buffers to         
        period_size 1536
        buffer_size 12288
How did you decide to use these values?"/

-> various instructions for example this
http://csound.github.io/docs/manual/UsingRealTime.html#RealTimeLinux

/"Third, if you add a "plug" device to your asound.conf that might help with
conversion"/

-> thx for this useful solution!!!  and for the link to cosmo!
*my csd now:*



-+rtaudio=alsa -b 512 -B4096 -iadc:plug:dsnoop01 -odac:plug:LineIn01


sr = 44100
ksmps = 64
nchnls = 2
0dbfs=1

instr 1
a1 inch 1
outs a1, a1
endin



i1 0 3600









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