[Cs-dev] possible pitchamdf bug

[Cs-dev] possible pitchamdf bug

Date	2015-04-25 10:30
From	Oeyvind Brandtsegg
Subject	[Cs-dev] possible pitchamdf bug
	Hi, I've used pitchamdf earlier and it used to work fine, but now it seems to behave quite odd. It sometimes gives just a constant pitch, but seems to react somehow on low pitches. Sorry to bring this up right on the brink of release, but it would be nice ensure that it works correctly in the new version. Here is a test (Csound 6.04 of December 2014). Ideally, the left and right audio signals should be of the same pitch. sr = 48000 ksmps = 128 nchnls = 2 0dbfs = 1 giSine ftgen 0, 0, 65536, 10, 1 ; sine wave instr 1 kfreq line 200, p3, 800 ain oscili 0.5, kfreq, giSine imincps = 100 imaxcps = 1000 initfreq = imincps imedian = 0 idowns = 4 iexcps = imincps irmsmedi = 0 kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian ,idowns ,iexcps ,irmsmedi aout oscili 0.5, kcps, giSine outs ain, aout endin i1 0 3 e -- Oeyvind Brandtsegg Professor of Music Technology NTNU 7491 Trondheim Norway Cell: +47 92 203 205 http://flyndresang.no/ http://www.partikkelaudio.com/ http://soundcloud.com/brandtsegg http://soundcloud.com/t-emp ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2015-04-25 11:44
From	Victor Lazzarini
Subject	Re: [Cs-dev] possible pitchamdf bug
	actually, I responded without looking at the code. The cepstrum is a complex inverse FFT (not real FFT), and so the packing I mentioned is not what is happening. However, 0Hz is purely real because the input is a real signal, so the second value is always 0. Coefficients are complex, so you have real, imag, real, imag, etc.. The second coefficient is in array positions 2,3 (not 1). ======================== Dr 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 25 Apr 2015, at 10:30, Oeyvind Brandtsegg wrote: > > Hi, > I've used pitchamdf earlier and it used to work fine, but now it seems > to behave quite odd. > It sometimes gives just a constant pitch, but seems to react somehow > on low pitches. > Sorry to bring this up right on the brink of release, but it would be > nice ensure that it works correctly in the new version. > > Here is a test (Csound 6.04 of December 2014). > Ideally, the left and right audio signals should be of the same pitch. > > > > > > > sr = 48000 > ksmps = 128 > nchnls = 2 > 0dbfs = 1 > > giSine ftgen 0, 0, 65536, 10, 1 ; sine wave > > > instr 1 > > kfreq line 200, p3, 800 > ain oscili 0.5, kfreq, giSine > > imincps = 100 > imaxcps = 1000 > initfreq = imincps > imedian = 0 > idowns = 4 > iexcps = imincps > irmsmedi = 0 > kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian > ,idowns ,iexcps ,irmsmedi > > aout oscili 0.5, kcps, giSine > > outs ain, aout > endin > > > > > i1 0 3 > e > > > > > -- > > Oeyvind Brandtsegg > Professor of Music Technology > NTNU > 7491 Trondheim > Norway > Cell: +47 92 203 205 > > http://flyndresang.no/ > http://www.partikkelaudio.com/ > http://soundcloud.com/brandtsegg > http://soundcloud.com/t-emp > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2015-04-25 11:52
From	Victor Lazzarini
Subject	Re: [Cs-dev] possible pitchamdf bug
	wrong post! ======================== Dr 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 25 Apr 2015, at 11:44, Victor Lazzarini wrote: > > actually, I responded without looking at the code. The cepstrum is a complex inverse > FFT (not real FFT), and so the packing I mentioned is not what is happening. However, > 0Hz is purely real because the input is a real signal, so the second value is always 0. > Coefficients are complex, so you have real, imag, real, imag, etc.. The second coefficient is > in array positions 2,3 (not 1). > ======================== > Dr 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 25 Apr 2015, at 10:30, Oeyvind Brandtsegg wrote: >> >> Hi, >> I've used pitchamdf earlier and it used to work fine, but now it seems >> to behave quite odd. >> It sometimes gives just a constant pitch, but seems to react somehow >> on low pitches. >> Sorry to bring this up right on the brink of release, but it would be >> nice ensure that it works correctly in the new version. >> >> Here is a test (Csound 6.04 of December 2014). >> Ideally, the left and right audio signals should be of the same pitch. >> >> >> >> >> >> >> sr = 48000 >> ksmps = 128 >> nchnls = 2 >> 0dbfs = 1 >> >> giSine ftgen 0, 0, 65536, 10, 1 ; sine wave >> >> >> instr 1 >> >> kfreq line 200, p3, 800 >> ain oscili 0.5, kfreq, giSine >> >> imincps = 100 >> imaxcps = 1000 >> initfreq = imincps >> imedian = 0 >> idowns = 4 >> iexcps = imincps >> irmsmedi = 0 >> kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian >> ,idowns ,iexcps ,irmsmedi >> >> aout oscili 0.5, kcps, giSine >> >> outs ain, aout >> endin >> >> >> >> >> i1 0 3 >> e >> >> >> >> >> -- >> >> Oeyvind Brandtsegg >> Professor of Music Technology >> NTNU >> 7491 Trondheim >> Norway >> Cell: +47 92 203 205 >> >> http://flyndresang.no/ >> http://www.partikkelaudio.com/ >> http://soundcloud.com/brandtsegg >> http://soundcloud.com/t-emp >> >> ------------------------------------------------------------------------------ >> One dashboard for servers and applications across Physical-Virtual-Cloud >> Widest out-of-the-box monitoring support with 50+ applications >> Performance metrics, stats and reports that give you Actionable Insights >> Deep dive visibility with transaction tracing using APM Insight. >> http://ad.doubleclick.net/ddm/clk/290420510;117567292;y >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2015-04-25 12:20
From	Victor Lazzarini
Subject	Re: [Cs-dev] possible pitchamdf bug
	That’s strange because I don’t see any changes to pitchamdf since 2013 (before 6.00). When did it stop working? ======================== Dr 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 25 Apr 2015, at 10:30, Oeyvind Brandtsegg wrote: > > Hi, > I've used pitchamdf earlier and it used to work fine, but now it seems > to behave quite odd. > It sometimes gives just a constant pitch, but seems to react somehow > on low pitches. > Sorry to bring this up right on the brink of release, but it would be > nice ensure that it works correctly in the new version. > > Here is a test (Csound 6.04 of December 2014). > Ideally, the left and right audio signals should be of the same pitch. > > > > > > > sr = 48000 > ksmps = 128 > nchnls = 2 > 0dbfs = 1 > > giSine ftgen 0, 0, 65536, 10, 1 ; sine wave > > > instr 1 > > kfreq line 200, p3, 800 > ain oscili 0.5, kfreq, giSine > > imincps = 100 > imaxcps = 1000 > initfreq = imincps > imedian = 0 > idowns = 4 > iexcps = imincps > irmsmedi = 0 > kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian > ,idowns ,iexcps ,irmsmedi > > aout oscili 0.5, kcps, giSine > > outs ain, aout > endin > > > > > i1 0 3 > e > > > > > -- > > Oeyvind Brandtsegg > Professor of Music Technology > NTNU > 7491 Trondheim > Norway > Cell: +47 92 203 205 > > http://flyndresang.no/ > http://www.partikkelaudio.com/ > http://soundcloud.com/brandtsegg > http://soundcloud.com/t-emp > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/csound-

Date	2015-04-25 12:32
From	Dave Seidel
Subject	Re: [Cs-dev] possible pitchamdf bug
Attachments	None None
	I've actually been using it since last fall in a realtime piece I've performed several times. It's been working fine for me, but I have not been pushing it very hard (since the piece employs notes of long duration within a fairly limited registral range (not much more than an octave). - Dave On Sat, Apr 25, 2015 at 7:20 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote: That’s strange because I don’t see any changes to pitchamdf since 2013 (before 6.00). When did it stop working? ======================== Dr 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 25 Apr 2015, at 10:30, Oeyvind Brandtsegg <oyvind.brandtsegg@ntnu.no> wrote: > > Hi, > I've used pitchamdf earlier and it used to work fine, but now it seems > to behave quite odd. > It sometimes gives just a constant pitch, but seems to react somehow > on low pitches. > Sorry to bring this up right on the brink of release, but it would be > nice ensure that it works correctly in the new version. > > Here is a test (Csound 6.04 of December 2014). > Ideally, the left and right audio signals should be of the same pitch. > > <CsoundSynthesizer> > <CsOptions> > </CsOptions> > <CsInstruments> > > sr = 48000 > ksmps = 128 > nchnls = 2 > 0dbfs = 1 > > giSine ftgen 0, 0, 65536, 10, 1 ; sine wave > > > instr 1 > > kfreq line 200, p3, 800 > ain oscili 0.5, kfreq, giSine > > imincps = 100 > imaxcps = 1000 > initfreq = imincps > imedian = 0 > idowns = 4 > iexcps = imincps > irmsmedi = 0 > kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian > ,idowns ,iexcps ,irmsmedi > > aout oscili 0.5, kcps, giSine > > outs ain, aout > endin > > > </CsInstruments> > <CsScore> > i1 0 3 > e > </CsScore> > </CsoundSynthesizer> > > > -- > > Oeyvind Brandtsegg > Professor of Music Technology > NTNU > 7491 Trondheim > Norway > Cell: +47 92 203 205 > > http://flyndresang.no/ > http://www.partikkelaudio.com/ > http://soundcloud.com/brandtsegg > http://soundcloud.com/t-emp > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/csound-devel

Date	2015-04-26 20:08
From	Oeyvind Brandtsegg
Subject	Re: [Cs-dev] possible pitchamdf bug
	Ok, sorry for the false alarm. I had been using the idowns parameter earlier, and it was working fine in another context. Now, it seems an idowns of 4 was breaking it. 2015-04-25 13:32 GMT+02:00 Dave Seidel : > I've actually been using it since last fall in a realtime piece I've > performed several times. It's been working fine for me, but I have not been > pushing it very hard (since the piece employs notes of long duration within > a fairly limited registral range (not much more than an octave). > > - Dave > > On Sat, Apr 25, 2015 at 7:20 AM, Victor Lazzarini > wrote: >> >> That's strange because I don't see any changes to pitchamdf since 2013 >> (before 6.00). When did it >> stop working? >> ======================== >> Dr 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 25 Apr 2015, at 10:30, Oeyvind Brandtsegg >> > wrote: >> > >> > Hi, >> > I've used pitchamdf earlier and it used to work fine, but now it seems >> > to behave quite odd. >> > It sometimes gives just a constant pitch, but seems to react somehow >> > on low pitches. >> > Sorry to bring this up right on the brink of release, but it would be >> > nice ensure that it works correctly in the new version. >> > >> > Here is a test (Csound 6.04 of December 2014). >> > Ideally, the left and right audio signals should be of the same pitch. >> > >> > >> > >> > >> > >> > >> > sr = 48000 >> > ksmps = 128 >> > nchnls = 2 >> > 0dbfs = 1 >> > >> > giSine ftgen 0, 0, 65536, 10, 1 ; sine wave >> > >> > >> > instr 1 >> > >> > kfreq line 200, p3, 800 >> > ain oscili 0.5, kfreq, giSine >> > >> > imincps = 100 >> > imaxcps = 1000 >> > initfreq = imincps >> > imedian = 0 >> > idowns = 4 >> > iexcps = imincps >> > irmsmedi = 0 >> > kcps,krms pitchamdf ain, imincps, imaxcps ,initfreq ,imedian >> > ,idowns ,iexcps ,irmsmedi >> > >> > aout oscili 0.5, kcps, giSine >> > >> > outs ain, aout >> > endin >> > >> > >> > >> > >> > i1 0 3 >> > e >> > >> > >> > >> > >> > -- >> > >> > Oeyvind Brandtsegg >> > Professor of Music Technology >> > NTNU >> > 7491 Trondheim >> > Norway >> > Cell: +47 92 203 205 >> > >> > http://flyndresang.no/ >> > http://www.partikkelaudio.com/ >> > http://soundcloud.com/brandtsegg >> > http://soundcloud.com/t-emp >> > >> > >> > ------------------------------------------------------------------------------ >> > One dashboard for servers and applications across Physical-Virtual-Cloud >> > Widest out-of-the-box monitoring support with 50+ applications >> > Performance metrics, stats and reports that give you Actionable Insights >> > Deep dive visibility with transaction tracing using APM Insight. >> > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y >> > _______________________________________________ >> > Csound-devel mailing list >> > Csound-devel@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/csound-devel >> >> >> >> ------------------------------------------------------------------------------ >> One dashboard for servers and applications across Physical-Virtual-Cloud >> Widest out-of-the-box monitoring support with 50+ applications >> Performance metrics, stats and reports that give you Actionable Insights >> Deep dive visibility with transaction tracing using APM Insight. >> http://ad.doubleclick.net/ddm/clk/290420510;117567292;y >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > > > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > -- Oeyvind Brandtsegg Professor of Music Technology NTNU 7491 Trondheim Norway Cell: +47 92 203 205 http://flyndresang.no/ http://www.partikkelaudio.com/ http://soundcloud.com/brandtsegg http://soundcloud.com/t-emp ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net