Buffer Length Limits

Buffer Length Limits

Date	2017-03-06 04:26
From	Sam Smalley
Subject	Buffer Length Limits
	I'm trying to use loscil to read a stereo audio file that is 12 minutes long. However, it's not making any sound. The instrument that I made works fine with all of the other audio files that I've tested that are ~10 seconds long, so my question is if I can't use loscil for audio files that are longer than a certain time, and if so is there is an opcode that works better? As a side note, I'm getting: WARNING: Buffer overrun in real-time audio input WARNING: Buffer underrun in real-time audio output Thanks, Sam 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

Date	2017-03-06 04:31
From	Samuel Smalley
Subject	Re: Buffer Length Limits
	So I guess diskin works with no issues, except I'm still getting buffer overrun/underrun On Sun, Mar 5, 2017 at 11:26 PM Sam Smalley <ssmalley@berklee.edu> wrote: I'm trying to use loscil to read a stereo audio file that is 12 minutes long. However, it's not making any sound. The instrument that I made works fine with all of the other audio files that I've tested that are ~10 seconds long, so my question is if I can't use loscil for audio files that are longer than a certain time, and if so is there is an opcode that works better? As a side note, I'm getting: WARNING: Buffer overrun in real-time audio input WARNING: Buffer underrun in real-time audio output Thanks, Sam 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

Date	2017-03-06 04:38
From	Steven Yi
Subject	Re: Buffer Length Limits
	There are numerous factors that could lead to buffer underruns that may not have to do with loscil or diskin. Could you post your code for review? And what platform/CPU are you running on? On Sun, Mar 5, 2017 at 11:31 PM, Samuel Smalley wrote: > So I guess diskin works with no issues, except I'm still getting buffer > overrun/underrun > > > On Sun, Mar 5, 2017 at 11:26 PM Sam Smalley wrote: >> >> I'm trying to use loscil to read a stereo audio file that is 12 minutes >> long. However, it's not making any sound. The instrument that I made works >> fine with all of the other audio files that I've tested that are ~10 seconds >> long, so my question is if I can't use loscil for audio files that are >> longer than a certain time, and if so is there is an opcode that works >> better? >> >> As a side note, I'm getting: >> WARNING: Buffer overrun in real-time audio input >> WARNING: Buffer underrun in real-time audio output >> >> Thanks, >> Sam >> > 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

Date	2017-03-06 04:45
From	Samuel Smalley
Subject	Re: Buffer Length Limits
	<CsoundSynthesizer> <CsOptions> </CsOptions> <CsInstruments> sr = 44100 ksmps = 128 nchnls = 2 0dbfs = 1.0 instr 5 icps = (p4) ifn = (p5) kMod1 lfo 0.05, 0.25 aMod2 lfo 0.5, icps * 0.5 aModPan = sqrt(aMod2 + 0.5) kPitchMod = kMod1 + icps aOsc1, aOsc2 loscil 0.1, kPitchMod, ifn, 1, 1 aMix = aOsc1 + aOsc2 outs aMix * aModPan, aMix * (1 - aModPan) endin instr 6 aOsc1, aOsc2 loscil 0.2, 1, 4, 1, 1 outs aOsc1, aOsc2 endin instr 7 aOsc1, aOsc2 diskin "subway.wav", 1 outs aOsc1, aOsc2 endin </CsInstruments> <CsScore> f1 0 0 1 "Jeff_Prompt.wav" 0 0 0 f2 0 0 1 "Gabe_Prompt.wav" 0 0 0 f3 0 0 1 "Fish_Prompt.wav" 0 0 0 f4 0 0 1 "subway.wav" 0 0 0 ;x ;instr strt dur freq f# ;i 6 0 60 i 7 0 60 </CsScore> </CsoundSynthesizer> I'm on a Macbook Pro, OSX Yosemite, 2.8ghz i7 CPU On Sun, Mar 5, 2017 at 11:38 PM, Steven Yi <stevenyi@gmail.com> wrote: There are numerous factors that could lead to buffer underruns that may not have to do with loscil or diskin. Could you post your code for review? And what platform/CPU are you running on? On Sun, Mar 5, 2017 at 11:31 PM, Samuel Smalley <ssmalley@berklee.edu> wrote: > So I guess diskin works with no issues, except I'm still getting buffer > overrun/underrun > > > On Sun, Mar 5, 2017 at 11:26 PM Sam Smalley <ssmalley@berklee.edu> wrote: >> >> I'm trying to use loscil to read a stereo audio file that is 12 minutes >> long. However, it's not making any sound. The instrument that I made works >> fine with all of the other audio files that I've tested that are ~10 seconds >> long, so my question is if I can't use loscil for audio files that are >> longer than a certain time, and if so is there is an opcode that works >> better? >> >> As a side note, I'm getting: >> WARNING: Buffer overrun in real-time audio input >> WARNING: Buffer underrun in real-time audio output >> >> Thanks, >> Sam >> > 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

Date	2017-03-06 07:55
From	Richard
Subject	Re: Buffer Length Limits
	You probably have to play with the hardware and software buffer sizes that Csound uses, as described here: http://www.csounds.com/manual/html/UsingOptimizing.html Richard On 06/03/17 05:31, Samuel Smalley wrote: So I guess diskin works with no issues, except I'm still getting buffer overrun/underrun On Sun, Mar 5, 2017 at 11:26 PM Sam Smalley <ssmalley@berklee.edu> wrote: I'm trying to use loscil to read a stereo audio file that is 12 minutes long. However, it's not making any sound. The instrument that I made works fine with all of the other audio files that I've tested that are ~10 seconds long, so my question is if I can't use loscil for audio files that are longer than a certain time, and if so is there is an opcode that works better? As a side note, I'm getting: WARNING: Buffer overrun in real-time audio input WARNING: Buffer underrun in real-time audio output Thanks, Sam 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

Date	2017-03-06 09:30
From	Victor Lazzarini
Subject	Re: Buffer Length Limits
	I think loscil has a limitation of file sizes to about 4mins (I seem to recall). Try flooper2 instead. ======================== Prof. Victor Lazzarini Dean of Arts, Celtic Studies, and Philosophy, Maynooth University, Maynooth, Co Kildare, Ireland Tel: 00 353 7086936 Fax: 00 353 1 7086952 > On 6 Mar 2017, at 04:26, Sam Smalley wrote: > > I'm trying to use loscil to read a stereo audio file that is 12 minutes long. However, it's not making any sound. The instrument that I made works fine with all of the other audio files that I've tested that are ~10 seconds long, so my question is if I can't use loscil for audio files that are longer than a certain time, and if so is there is an opcode that works better? > > As a side note, I'm getting: > WARNING: Buffer overrun in real-time audio input > WARNING: Buffer underrun in real-time audio output > > Thanks, > Sam > > 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