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Re: oversampling

Date1999-09-30 07:59
FromThomas Huber
SubjectRe: oversampling
> > > > 0 8192-byte soundblks ....
> > > 
> > > Try to use headerless (raw) file format. WAV needs seeking which is not supported
> > > by pipes/fifos.
> >
> > I just tried. Same effect:
> >
> > soundfile write returned bytecount of -1, not 8192
> > (disk may be full...
> > closing the file ...)
> 
> hmmm... try this:
> 
> mkfifo foobar ; ( csound -d -m7 -h -s -H1 -o foobar blah.orc blah.sco & \
> sox -t raw -s -w -c 1 -r 44100 foobar -t wav foobar.wav ) ; rm -f foobar

Just the same effect.. Csound really does not like writing to a
pipe... So I have no other option, I must first write my oversampled
(and float-samples) audio file to disk, and then process it...
Maybe I need a new harddisk, then I won't have such problems... (-;


Date1999-09-30 14:12
FromLarry Troxler
SubjectRe: oversampling
> > > soundfile write returned bytecount of -1, not 8192
> > > (disk may be full...
> > > closing the file ...)

hmm, the size of a fifo on Linux is 4096 bytes, I think. Could it be that
you can not write more than that in a single call (it would make sense)?

Try with a block size less than the size of the firo perhaps?

Larry Troxler
  



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Date: Thu, 30 Sep 1999 09:21:16 -0400 (EDT)
From: Larry Troxler 
To: frederic Aidouni 
cc: csound@maths.ex.ac.uk
Subject: Re: New to CSound
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On Thu, 30 Sep 1999, frederic Aidouni wrote:

> hiya everybody!
> 
> I would like to know if anyone on this list is using his computer with
> CSound as an external synth expander?

I'm not sure what you mean by an "external synth expander". I'll assume
that you mean using Csound as a real-time MIDI driven instrument.

If that's the case, I'm getting Csound running on a Pentium 100 Linux box.
I'm trying to get it to work together with KeyKit, so that KeyKit handles
the MIDI input and drives Csound through Line events. So far, the
basically works. The reason I choose KeyKit is that it should be more
robust for doing real-time algo stuff (smart instruments), than trying to
accomplish the same thing using Csound (lots of bugs there most likely,
and the code for the Csound event processing is reeally nasty).
Also, KeyKit can function as a sequencer, so that your performances can
be recreated or whatever.

Larry Troxler




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Date: Thu, 30 Sep 1999 09:29:58 -0400 (EDT)
From: Larry Troxler 
To: frederic Aidouni 
cc: csound@maths.ex.ac.uk
Subject: Re: New to CSound
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On Thu, 30 Sep 1999, frederic Aidouni wrote:
> 
> At the moment I have a p200mmx, and I have printed the manual last night,
> and looked at the opcodes,
> it seems that CSound is fabulous!

Well, just be warned that a large number of those opcodes don't work
correctly in every circumstance! Csound is still fantastic for its dollar
price, but be ready for some debugging or finding work arounds.

> 
> But before buying a bigger PC (celeron 400 for example) I'm looking for some
> feedback about
> realtime CSound in a midi environnement...

Well, I'm still getting my framework all set up, so for now all I can tell
you is that a simple Wgpluck instrument plays through KeyKit to Csound
without obvious latency. But it will be a while before I get to the point
of tweaking latencies.  The biggest problem my machine has with reeal-time
at the moment is that I have IDE disk drives.
Remember, you have the option of running Csound at POSIX priority level.

Also, I seem to recall that someone is working on an audio driver for
RTlinux, although I can't remember where I heard that.
Now *that* would be nice!

Larry
  



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Date: Thu, 30 Sep 1999 09:56:03 -0700
From: patrick pagano 
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Subject: the continuing adventures of residual Granular piercings
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Hi C sounders
i have attached a instr and was wondering if anyone can help with the
same problem
i have been experiencing for a while
: the scenario

i have say 30 seconds of granular events that are wonderful(to me) i
have usually arrived at by using random selections. I try to extend the
event by putting a
t 0 20 on it so  it becomes like a landscape. and i then try to mirror
the initial event
unextended on the otherside. usually seperating then with  sections to
remove a high piercing pitch that appears (which is not in the .sco).
so it looks like this

; Function 1 uses the GEN10 subroutine to compute a sine wave
; Function 3 uses the GEN20 subroutine to compute a Hanning window for
use as a grain envelope

f 1  0 4096 10   1
f 3  0 4097 -20   2  1
f2  0 4096 10   1  0 0 0  0 0 2
f10 0 512 -7 0 50 1 50 .5 300 .5 112 0   ;ADSR

;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 105      0      3      1   .05  77       896   448    64     448
0
i 105       3      6      2   .09   7       672   448   128
336        1
i 106       6      3      1  .16   6        544   816   256
272        0
i 105       9      7      1   .0036   15    544   448   512
272        1
i 106       16      6      2  .09   14      128   192   448
336        0
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 107      0      3      1   .005  77      896   544    64     448
0
i 107       3      3      2   .009   7      672   544   128
336        1
i 106       6      3      1  .016   6       544   384   256
384        0
i 107       9      7      1   .036   15     544   448   512
272        1
i 106       16      6      2  .009   14     128   192   448
192        0
; inst s dur     Ft    Dens   len  Fr1   Fr2   Fr3    Fr4
i 107      0      3      1   .05  177      448   496    64     448
0
i 107       3      3      2   .09   67      336   512   224
336        1
i 106       6      10      1  .13   76      272    64   256
272        0
i 107       16      6      2  .09   114     336   512   224
336        1
i 105       21     10       1   .08  76      512   1024    64
512      0
i 106       21     10       2   .15   17     1024  496    512
816      1

;this is for reverb settings
;===========================
;p1    p2   p3    p4         p5
;instr strt  dur rvbtime hfdif
i98     0  31 5         .7
s
t 0 20 10 240 15 5
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 105      0      3      1   .05  77       896   448    64     448
0
i 105       3      6      2   .09   7       672   448   128
336        1
i 106       6      3      1  .16   6        544   816   256
272        0
i 105       9      7      1   .0036   15    544   448   512
272        1
i 106       16      6      2  .09   14      128   192   448
336        0
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 107      0      3      1   .005  77      896   544    64     448
0
i 107       3      3      2   .009   7      672   544   128
336        1
i 106       6      3      1  .016   6       544   384   256
384        0
i 107       9      7      1   .036   15     544   448   512
272        1
i 106       16      6      2  .009   14     128   192   448
192        0
; inst s dur     Ft    Dens   len  Fr1   Fr2   Fr3    Fr4
i 107      0      3      1   .05  177      448   496    64     448
0
i 107       3      3      2   .09   67      336   512   224
336        1
i 106       6      10      1  .13   76      272    64   256
272        0
i 107       16      6      2  .09   114     336   512   224
336        1
i 105       21     10       1   .08  76      512   1024    64
512      0
i 106       21     10       2   .15   17     1024  496    512
816      1

;this is for reverb settings
;===========================
;p1    p2   p3    p4         p5
;instr strt  dur rvbtime hfdif
i98     0  31 5         .7
s
t 0 240
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 105      0      3      1   .05  77       896   448    64     448
0
i 105       3      6      2   .09   7       672   448   128
336        1
i 106       6      3      1  .16   6        544   816   256
272        0
i 105       9      7      1   .0036   15    544   448   512
272        1
i 106       16      6      2  .09   14      128   192   448
336        0
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 107      0      3      1   .005  77      896   544    64     448
0
i 107       3      3      2   .009   7      672   544   128
336        1
i 106       6      3      1  .016   6       544   384   256
384        0
i 107       9      7      1   .036   15     544   448   512
272        1
i 106       16      6      2  .009   14     128   192   448
192        0
; inst s dur     Ft    Dens   len  Fr1   Fr2   Fr3    Fr4
i 107      0      3      1   .05  177      448   496    64     448
0
i 107       3      3      2   .09   67      336   512   224
336        1
i 106       6      10      1  .13   76      272    64   256
272        0
i 107       16      6      2  .09   114     336   512   224
336        1
i 105       21     10       1   .08  76      512   1024    64
512      0
i 106       21     10       2   .15   17     1024  496    512
816      1

;this is for reverb settings
;===========================
;p1    p2   p3    p4         p5
;instr strt  dur rvbtime hfdif
i98     0  32 5         .7
s; this is the section where th unwanted high pitch results
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 105      0      3      1   .05  77       896   448    64     448
0
i 105       3      6      2   .09   7       672   448   128
336        1
i 106       6      3      1  .016   6        544   816   256
272        0
i 105       9      7      1   .036   15    544   448   512    272
1
i 106       16      2      2  .09   14      128   192   448
336        0
;inst s dur     Ft    Dens   len        Fr1   Fr2   Fr3    Fr4        1
i 107      0      3      1   .05  77      896   544    64     448
1
i 107       3      3      2   .09   7      672   544   128    336
0
i 106       6      3      1  .016   6       544   384   256
384        1
i 107       9      7      1   .36   15     544   448   512    272
0
i 106       16      1      2  .09   14     128   192   448    192
1
; inst s dur     Ft    Dens   len  Fr1   Fr2   Fr3    Fr4
i 107      2      3      1   .015  177      448   496    64
448       0
i 107       5      3      2   .019   67      336   512   224
336        1
i 106       9      5      1  .013   76      272    64   256
272        0
i 107       16      5      2  .09   114     336   512   224
336        1
i 105       21     1       1   .08  76      512   1024    64    512
0
i 106       21     10       2   .15   17     1024  496    512
816      1

;this is for reverb settings
;===========================
;p1    p2   p3    p4         p5
;instr strt  dur rvbtime hfdif
i98     0  33 5         .7


e
;here is the orc
sr   =   44100
kr   =   4410
ksmps  =   10
nchnls  =   2
garvbsig init 0


  instr  105
kpan=p11
koscar     oscil       500,512,1
kamp       oscil       koscar,512,10
aamp    linseg  0, .002, 1, p3-.004, 1, .002, 0  ; Declick envelope
kenv        expseg p7, p3/2, p8, p3/2, p9, p3/2,p10
a1   grain  koscar, kenv, p6, kamp+10, kenv*6, p5, p4, 3, 1
krtl=sqrt(2)/2*cos(kpan)+sin(kpan)     ;constant power panning
krtr=sqrt(2)/2*cos(kpan)-sin(kpan)     ;from C.Roads "CM Tutorial" pp460

aout=a1*aamp
al=aout*krtl
ar=aout*krtr
 outs al,ar

garvbsig=garvbsig+aout

  endin
instr  106
kpan=p11
koscar     oscil       500,256,1
kamp       oscil       koscar,256,10
aamp    linseg  0, .002, 1, p3-.004, 1, .002, 0  ; Declick envelope
kenv        expseg p7, p3/2, p8, p3/2, p9, p3/2,p10
a1   grain  koscar, kenv, p6, kamp+10, kenv*6, p5, p4, 3, 1
krtl=sqrt(2)/2*cos(kpan)+sin(kpan)     ;constant power panning
krtr=sqrt(2)/2*cos(kpan)-sin(kpan)     ;from C.Roads "CM Tutorial" pp460

aout=a1*aamp
al=aout*krtl
ar=aout*krtr
 outs al,ar

garvbsig=garvbsig+aout
  endin
instr  107
kpan=p11
koscar     oscil       500,448,1
kamp       oscil       koscar,448,10
aamp    linseg  0, .002, 1, p3-.004, 1, .002, 0  ; Declick envelope
kenv        expseg p7, p3/2, p8, p3/2, p9, p3/2,p10
a1   grain  koscar, kenv, p6, kamp+10, kenv*6, p5, p4, 3, 1
krtl=sqrt(2)/2*cos(kpan)+sin(kpan)     ;constant power panning
krtr=sqrt(2)/2*cos(kpan)-sin(kpan)     ;from C.Roads "CM Tutorial" pp460

aout=a1*aamp
afilt butterlp aout,2048; not sure if this is right  but this is what i
was thinking yet it does not woik!!!
amod  balance afilt,a1
al=aout*krtl;changing this to amod*krtl etc..did not work
ar=aout*krtr
 outs al,ar


garvbsig=garvbsig+aout
  endin
instr 98
  a1 reverb2 garvbsig, p4, p5
 outs     a1,a1

garvbsig=0

endin
; can someone suggest or implement some kind of filter to prevent the
piercing high -end squeal????
;i was thing a butterlp ?,2048 but i am unsure of where to put it or if
that is appropriate.
;again i want to limit high frequencies without having to section them
Thanks to all
Pat Pagano



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Date: Thu, 30 Sep 1999 23:28:52 +0930
Subject: HETRO wont work
From: Nathan Day 
To: Csound list 
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I can't get HETRO to work with CsoundPPC (3.56 & 3.58) I haven't used it for
quite a while, this is the sort of output I get, no matter the input sound
or it formate (AIFF or SDII), am I doing some thing wrong or is there a bug

audio sr = 36000, monaural
analysing 15346 sample frames (0.4 secs)
analysing harmonic #0
freq est  100.0, max found  165.1, rel amp 275545.2
analysing harmonic #1
freq est  200.0, max found  257.6, rel amp 577941.2
analysing harmonic #2
freq est  300.0, max found  342.9, rel amp 1577218.4
analysing harmonic #3
freq est  400.0, max found  468.3, rel amp 526824.1
analysing harmonic #4
freq est  500.0, max found  563.8, rel amp 1622351.2
analysing harmonic #5
freq est  600.0, max found  675.0, rel amp 2166946.5
analysing harmonic #6
freq est  700.0, max found  764.0, rel amp 1964676.2
analysing harmonic #7
freq est  800.0, max found  841.6, rel amp 1707222.2
analysing harmonic #8
freq est  900.0, max found  963.1, rel amp 942853.5
analysing harmonic #9
freq est 1000.0, max found 1046.6, rel amp 182129.1
scale = 1887354769103380629807955968.000000
harmonic #0:    amp points 1,   frq points 1,   peakamp 0
harmonic #1:    amp points 1,   frq points 1,   peakamp 0
harmonic #2:    amp points 1,   frq points 1,   peakamp 0
harmonic #3:    amp points 1,   frq points 1,   peakamp 0
harmonic #4:    amp points 1,   frq points 1,   peakamp 0
harmonic #5:    amp points 1,   frq points 1,   peakamp 0
harmonic #6:    amp points 1,   frq points 1,   peakamp 0
harmonic #7:    amp points 1,   frq points 1,   peakamp 0
harmonic #8:    amp points 1,   frq points 1,   peakamp 0
harmonic #9:    amp points 1,   frq points 1,   peakamp 0


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Date: Thu, 30 Sep 1999 18:04:58 +0200
From: Gabriel Maldonado 
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Subject: Re: surround-sound support in next version
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It will be present too! (however, at present time I have no notice of
any audio card that support it in native mode, not in emulated mode).
--=20
Gabriel Maldonado

http://web.tiscalinet.it/G-Maldonado/home2.htm

Peter Neub=E4cker wrote:
>=20
> What about DirectSound realtime input support in DirectCsound...? Can i=
t be expected in the near future?
> Peter


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Date: Thu, 30 Sep 1999 10:29:15 -0400
Subject: Re: More bassdrums 
From: Eloy Anzola 
To: csound@maths.ex.ac.uk
CC: Varga Istv=?ISO-8859-1?B?4Q==?=n 
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Dear Csound list:

This recent tread of drum sounds has been amazing,
it's is a pleasure to hear such great sounds.

Hans -- those crickets, wow ! -- & Varga: you guys rock !!
I admire your understanding of sound.

I know it's been asked but..., snare and hats anyone ?

Varga, I could not figure out what to do with the
split gzip files you sent. Can you, by any chance,
make a .zip or .sit and E-Mail it to me directly ?

...Also, I'll be more than happy to post it somewhere
on my site for people to download -- without spamming
the list --.

All the best,

Eloy

 ------
leaddaet@earthlink.net
http://home.earthlink.net/~leaddaet



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Date: Thu, 30 Sep 1999 12:50:16 -0500
From: Michael Coble 
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To: patrick pagano 
Cc: "csound@maths.ex.ac.uk" 
Subject: Re: the continuing adventures of residual Granular piercings
References: <37F39623.8E8F98C5@bellsouth.net>
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patrick pagano wrote:
> 
> Hi C sounders
> i have attached a instr and was wondering if anyone can help with the
> same problem
> i have been experiencing for a while
> : the scenario
> 
> ; can someone suggest or implement some kind of filter to prevent the
> piercing high -end squeal????

	Patrick,

	I had this problem doing a granular synthesis piece a couple of years
ago (although I made my own granuals, not using the gran inst). Some of
the individual granuals were small enough sound snippets so that they
were really closer in size to a few sample points. They became arranged
in such a way as to become a high frequency sin wave that sounds like an
unfriendly bi-product.  So my solution was to make sure that all sound
snippets were large enough to avoid this, but another approach would be
to apply a noise gate or carve out the sound in the frequency range of
the piercing high end squeal.

	hope this helps,

> ;i was thing a butterlp ?,2048 but i am unsure of where to put it or if
> that is appropriate.
> ;again i want to limit high frequencies without having to section them
> Thanks to all
> Pat Pagano


-- 
Michael Coble:: 
    Digital Art Gallery, http://www.sohogallery-nyc.com/
    Music, http://www.sohogallery-nyc.com/computermusic


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From: Martin Puryear 
To: 'Gabriel Maldonado' , 
    peter@orpheus.selene.cube.net
Cc: csound@maths.ex.ac.uk
Subject: RE: surround-sound support in next version
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Only WDM audio drivers can do DirectSoundCapture natively.  There are a
handful of devices that have WDM drivers already, but mainly these will
emerge when Windows 2000 ships in a couple of months.

-----Original Message-----
From: Gabriel Maldonado [mailto:g.maldonado@agora.stm.it]
Sent: Thursday, September 30, 1999 9:05 AM
To: peter@orpheus.selene.cube.net
Cc: csound@maths.ex.ac.uk
Subject: Re: surround-sound support in next version


It will be present too! (however, at present time I have no notice of
any audio card that support it in native mode, not in emulated mode).
-- 
Gabriel Maldonado

http://web.tiscalinet.it/G-Maldonado/home2.htm

Peter Neubcker wrote:
> 
> What about DirectSound realtime input support in DirectCsound...? Can it
be expected in the near future?
> Peter


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Date: Thu, 30 Sep 1999 19:59:37 -0500
From: Stan Olejarz 
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I need some info before I abandon Windows operating system for Linux .
    1. which linux flavour should I use with Csound?
    2. where can I get this version of Linux?
    3. Is Linux as hard to install as everybody says?
    4. are drivers hard to find?

Thank You
Stan The Man
Toronto ,Ontario Canada



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Date: Fri, 01 Oct 1999 00:28:26 +0000
From: Larry Troxler 
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Stan Olejarz wrote:
> 
> I need some info before I abandon Windows operating system for Linux .

Go easy on yourself - there's no reason to abandon Windows immediately -
install a dual boot system.

>     1. which linux flavour should I use with Csound?

So much is happening lately in terms of Linux distributions, I don't
know what to say. Red-hat is a conservative, reliable, easy to install
choice, however. 

>  2. where can I get this version of Linux?

www.redhat.com, or better yet, your local Borders or Barnes and Noble
bookstore. Look for a book that includes a RedHat CD. Just make sure
it's version 5.x or later. 

>     3. Is Linux as hard to install as everybody says?

Linux is not really difficult to install lately. The more popular
distributions are really getting user-friendly lately as far as the
installation procedures go. It's down to a step-by-step
answer-the-questions thing lately. Probably about as easy/difficult as
installing Windows on a raw hard drive.

You might be asking the wrong question. Installing Linux is the easy
part (usually). But what to you do when you're first presented with that
login prompt? Where do you go from there? That's where the real effort
begins.

>     4. are drivers hard to find?

Do you mean sound-card drivers? then, no, assuming you don't have an
odd-ball or very recent sound-card.  

- Larry Troxler



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From: Sherlock 
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This is a test. Please Igore.

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To: csound@maths.ex.ac.uk
From: "A. Archias" 
Subject: Re;csounders at AES
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I was there but did not notice anything requarding csound.
 AA 

**************
 Sat, 25 Sep 1999 15:37:24 +0100
any csounders hawking wares at AES; or perhaps strolling the aisles in red
carnations; location?

tolve