[Csnd] Why does this orchestra make sound?

[Csnd] Why does this orchestra make sound?

Date	2010-02-27 19:53
From	Tobiah
Subject	[Csnd] Why does this orchestra make sound?
	I started by putting in an envelope with linseg, but it never had any effect. I've boiled it down further. I'm multiplying my signals by zero, and I still get a constant sine wave. If I multiply a_sig_{left,right} by zero in the last 'outs' line, I get silence as expected. Am I losing my mind? Thanks, Tobiah Score: i1 0.0 10.0 0.5 440.0 Orchestra: sr = 44100 ksmps = 1 nchnls = 2 gi_wave ftgen 0, 0, 65536, 10, 1 instr 1 i_dur init p3 i_vol init p4 i_pitch init p5 a_sig_left oscil3 i_vol, i_pitch, gi_wave a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave a_sig_left = 0 * a_sig_left a_sig_right = 0 * a_sig_right outs a_sig_left, a_sig_right endin Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 20:03
From	Victor Lazzarini
Subject	[Csnd] Re: Why does this orchestra make sound?
	Not here. It does not make any sound, as expected. On 27 Feb 2010, at 19:53, Tobiah wrote: > i1 0.0 10.0 0.5 440.0 Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 20:30
From	Tobiah
Subject	[Csnd] Re: Re: Why does this orchestra make sound?
	I figured this out. It's pretty funny. I am in an environment where I automatically render an orchestra to floats, rescale, and play the file. So, I hit the 'button' and out comes a sinewave. What was actually happening is that csound was making an incredibly tiny sinewave that is generally inaudible, until rescaled to full volume! Check out the soundfile that comes out with snd, or some other editor that will allow you to expand the vertical scale. Way way down at the end is the tiniest little sinewave just a few bits tall. This seems like a bug, as the output should really be all zeros. In fact if I do the multiplication on the last line with the 'outs' opcode, I do get a file with all zeros. Do the multiplication by zero as I posted, and the teeny sinewave rears its head. Thanks, Tobiah On Sat, Feb 27, 2010 at 12:03 PM, Victor Lazzarini wrote: > Not here. It does not make any sound, as expected. > On 27 Feb 2010, at 19:53, Tobiah wrote: > >> i1 0.0 10.0 0.5 440.0 > > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" > > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 20:39
From	Tobiah
Subject	[Csnd] Re: Re: Why does this orchestra make sound?
	Actually, forget my last post. I forgot I was deliberately using small numbers so that my floats would range 0 to 1. If I use this score with a larger p4: i1 0.0 10.0 30000.0 440.0 The sinewave comes out full blast as though the multiplication by zero was not happening. My original problem still stands for the same reason. My envelope has now effect here: sr = 44100 ksmps = 1 nchnls = 2 gi_wave ftgen 0, 0, 65536, 10, 1 instr 1 i_dur init p3 i_vol init p4 i_pitch init p5 a_sig_left oscil3 i_vol, i_pitch, gi_wave a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave aenv linseg 0, .1, 1, i_dur - .1, 0 a_sig_left = a_sig_left * aenv a_sig_right = a_sig_right * aenv outs a_sig_left, a_sig_right endin but if I put the * aenv down in the outs line, I get the desired effect. What am I missing about this? Thanks, Tobiah On Sat, Feb 27, 2010 at 12:03 PM, Victor Lazzarini wrote: > Not here. It does not make any sound, as expected. > On 27 Feb 2010, at 19:53, Tobiah wrote: > >> i1 0.0 10.0 0.5 440.0 > > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" > > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 20:46
From	Victor Lazzarini
Subject	[Csnd] Re: Re: Re: Why does this orchestra make sound?
	I works here, no problem (OSX 5.12.2). Victor On 27 Feb 2010, at 20:39, Tobiah wrote: > Actually, forget my last post. I forgot I was deliberately using > small numbers > so that my floats would range 0 to 1. If I use this score with a > larger p4: > > i1 0.0 10.0 30000.0 440.0 > > The sinewave comes out full blast as though the multiplication by zero > was not happening. My original problem still stands for the same > reason. > My envelope has now effect here: > > sr = 44100 > ksmps = 1 > nchnls = 2 > > gi_wave ftgen 0, 0, 65536, 10, 1 > > instr 1 > > i_dur init p3 > i_vol init p4 > i_pitch init p5 > > a_sig_left oscil3 i_vol, i_pitch, gi_wave > a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave > > aenv linseg 0, .1, 1, i_dur - .1, 0 > > a_sig_left = a_sig_left * aenv > a_sig_right = a_sig_right * aenv > > outs a_sig_left, a_sig_right > > endin > > > but if I put the * aenv down in the outs line, I get the desired > effect. > What am I missing about this? > > Thanks, > > Tobiah > > On Sat, Feb 27, 2010 at 12:03 PM, Victor Lazzarini > wrote: >> Not here. It does not make any sound, as expected. >> On 27 Feb 2010, at 19:53, Tobiah wrote: >> >>> i1 0.0 10.0 0.5 440.0 >> >> >> >> Send bugs reports to the Sourceforge bug tracker >> https://sourceforge.net/tracker/?group_id=81968&atid=564599 >> Discussions of bugs and features can be posted here >> To unsubscribe, send email sympa@lists.bath.ac.uk with body >> "unsubscribe >> csound" >> >> > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body > "unsubscribe csound" > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 21:47
From	Tobiah
Subject	[Csnd] Re: Re: Re: Re: Why does this orchestra make sound?
	That is so strange. I'm on Ubuntu 9.10, using a home compiled Csound version 5.12 (double samples) Feb 17 2010. I get a constant volume sound with this orchestra, but if I change the last line to: outs a_sig_left * aenv, a_sig_right * aenv I get the expected tapered waveform. I can't believe how much time I've spent trying to debug this. Thanks, Toby On Sat, Feb 27, 2010 at 12:46 PM, Victor Lazzarini wrote: > I works here, no problem (OSX 5.12.2). > > Victor > On 27 Feb 2010, at 20:39, Tobiah wrote: > >> Actually, forget my last post. I forgot I was deliberately using small >> numbers >> so that my floats would range 0 to 1. If I use this score with a larger >> p4: >> >> i1 0.0 10.0 30000.0 440.0 >> >> The sinewave comes out full blast as though the multiplication by zero >> was not happening. My original problem still stands for the same reason. >> My envelope has now effect here: >> >> sr = 44100 >> ksmps = 1 >> nchnls = 2 >> >> gi_wave ftgen 0, 0, 65536, 10, 1 >> >> instr 1 >> >> i_dur init p3 >> i_vol init p4 >> i_pitch init p5 >> >> a_sig_left oscil3 i_vol, i_pitch, gi_wave >> a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave >> >> aenv linseg 0, .1, 1, i_dur - .1, 0 >> >> a_sig_left = a_sig_left * aenv >> a_sig_right = a_sig_right * aenv >> >> outs a_sig_left, a_sig_right >> >> endin >> >> >> but if I put the * aenv down in the outs line, I get the desired effect. >> What am I missing about this? >> >> Thanks, >> >> Tobiah >> >> On Sat, Feb 27, 2010 at 12:03 PM, Victor Lazzarini >> wrote: >>> >>> Not here. It does not make any sound, as expected. >>> On 27 Feb 2010, at 19:53, Tobiah wrote: >>> >>>> i1 0.0 10.0 0.5 440.0 >>> >>> >>> >>> Send bugs reports to the Sourceforge bug tracker >>> https://sourceforge.net/tracker/?group_id=81968&atid=564599 >>> Discussions of bugs and features can be posted here >>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe >>> csound" >>> >>> >> >> >> Send bugs reports to the Sourceforge bug tracker >> https://sourceforge.net/tracker/?group_id=81968&atid=564599 >> Discussions of bugs and features can be posted here >> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe >> csound" >> > > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" > > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 22:12
From	Tobiah
Subject	[Csnd] Re: Why does this orchestra make sound?
	Looking further it seems that any a-rate assignment using the '=' operator has no effect in my version of csound. That's pretty crippling. I'm not sure what to do about it. This is why I was able to do the multiplication straight in the 'outs' line, but not in the '=' assignment line. Has any work been done lately that could possibly have this effect in the recent sources? Thanks, Toby On Sat, Feb 27, 2010 at 11:53 AM, Tobiah wrote: > I started by putting in an envelope with linseg, but it never had any effect. > I've boiled it down further. I'm multiplying my signals by zero, and I still > get a constant sine wave. If I multiply a_sig_{left,right} by zero in the > last 'outs' line, I get silence as expected. > > Am I losing my mind? > > Thanks, > > Tobiah > > Score: > > i1 0.0 10.0 0.5 440.0 > > Orchestra: > > sr = 44100 > ksmps = 1 > nchnls = 2 > > gi_wave ftgen 0, 0, 65536, 10, 1 > > instr 1 > > i_dur init p3 > i_vol init p4 > i_pitch init p5 > > a_sig_left oscil3 i_vol, i_pitch, gi_wave > a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave > > a_sig_left = 0 * a_sig_left > a_sig_right = 0 * a_sig_right > > outs a_sig_left, a_sig_right > > endin > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 23:25
From	Victor Lazzarini
Subject	[Csnd] Re: Re: Re: Re: Re: Why does this orchestra make sound?
	I suggest you update from CVS, because this might have been some intermediary development stage of Csound. There were issues with assignment sometime in February in the CVS code. Victor On 27 Feb 2010, at 21:47, Tobiah wrote: > That is so strange. I'm on Ubuntu 9.10, using a home compiled > Csound version 5.12 (double samples) Feb 17 2010. I get a > constant volume sound with this orchestra, but if I change the > last line to: > > outs a_sig_left * aenv, a_sig_right * aenv > > I get the expected tapered waveform. > > I can't believe how much time I've spent trying to > debug this. > > Thanks, > > Toby > > On Sat, Feb 27, 2010 at 12:46 PM, Victor Lazzarini > wrote: >> I works here, no problem (OSX 5.12.2). >> >> Victor >> On 27 Feb 2010, at 20:39, Tobiah wrote: >> >>> Actually, forget my last post. I forgot I was deliberately using >>> small >>> numbers >>> so that my floats would range 0 to 1. If I use this score with a >>> larger >>> p4: >>> >>> i1 0.0 10.0 30000.0 440.0 >>> >>> The sinewave comes out full blast as though the multiplication by >>> zero >>> was not happening. My original problem still stands for the same >>> reason. >>> My envelope has now effect here: >>> >>> sr = 44100 >>> ksmps = 1 >>> nchnls = 2 >>> >>> gi_wave ftgen 0, 0, 65536, 10, 1 >>> >>> instr 1 >>> >>> i_dur init p3 >>> i_vol init p4 >>> i_pitch init p5 >>> >>> a_sig_left oscil3 i_vol, i_pitch, gi_wave >>> a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave >>> >>> aenv linseg 0, .1, 1, i_dur - .1, 0 >>> >>> a_sig_left = a_sig_left * aenv >>> a_sig_right = a_sig_right * aenv >>> >>> outs a_sig_left, a_sig_right >>> >>> endin >>> >>> >>> but if I put the * aenv down in the outs line, I get the desired >>> effect. >>> What am I missing about this? >>> >>> Thanks, >>> >>> Tobiah >>> >>> On Sat, Feb 27, 2010 at 12:03 PM, Victor Lazzarini >>> wrote: >>>> >>>> Not here. It does not make any sound, as expected. >>>> On 27 Feb 2010, at 19:53, Tobiah wrote: >>>> >>>>> i1 0.0 10.0 0.5 440.0 >>>> >>>> >>>> >>>> Send bugs reports to the Sourceforge bug tracker >>>> https://sourceforge.net/tracker/? >>>> group_id=81968&atid=564599 >>>> Discussions of bugs and features can be posted here >>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body >>>> "unsubscribe >>>> csound" >>>> >>>> >>> >>> >>> Send bugs reports to the Sourceforge bug tracker >>> https://sourceforge.net/tracker/? >>> group_id=81968&atid=564599 >>> Discussions of bugs and features can be posted here >>> To unsubscribe, send email sympa@lists.bath.ac.uk with body >>> "unsubscribe >>> csound" >>> >> >> >> >> Send bugs reports to the Sourceforge bug tracker >> https://sourceforge.net/tracker/?group_id=81968&atid=564599 >> Discussions of bugs and features can be posted here >> To unsubscribe, send email sympa@lists.bath.ac.uk with body >> "unsubscribe >> csound" >> >> > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body > "unsubscribe csound" > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-02-27 23:27
From	Victor Lazzarini
Subject	[Csnd] Re: Re: Why does this orchestra make sound?
	Just update... On 27 Feb 2010, at 22:12, Tobiah wrote: > Looking further it seems that any a-rate assignment using the '=' > operator > has no effect in my version of csound. That's pretty crippling. > I'm not sure > what to do about it. This is why I was able to do the > multiplication straight > in the 'outs' line, but not in the '=' assignment line. Has any > work been done > lately that could possibly have this effect in the recent sources? > > Thanks, > > Toby > > On Sat, Feb 27, 2010 at 11:53 AM, Tobiah wrote: >> I started by putting in an envelope with linseg, but it never had >> any effect. >> I've boiled it down further. I'm multiplying my signals by zero, >> and I still >> get a constant sine wave. If I multiply a_sig_{left,right} by zero >> in the >> last 'outs' line, I get silence as expected. >> >> Am I losing my mind? >> >> Thanks, >> >> Tobiah >> >> Score: >> >> i1 0.0 10.0 0.5 440.0 >> >> Orchestra: >> >> sr = 44100 >> ksmps = 1 >> nchnls = 2 >> >> gi_wave ftgen 0, 0, 65536, 10, 1 >> >> instr 1 >> >> i_dur init p3 >> i_vol init p4 >> i_pitch init p5 >> >> a_sig_left oscil3 i_vol, i_pitch, gi_wave >> a_sig_right oscil3 i_vol, i_pitch + 1, gi_wave >> >> a_sig_left = 0 * a_sig_left >> a_sig_right = 0 * a_sig_right >> >> outs a_sig_left, a_sig_right >> >> endin >> > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body > "unsubscribe csound" > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"