[Csnd] problem with cent deviations

Date	2010-01-23 19:41
From	Stefan Thomas
Subject	[Csnd] problem with cent deviations
	Dear community, I tried out what I've read in the article "tuning Your midi-keybord", in the last issue of the Csound-Journal. (http://www.csounds.com/journal/issue12/tuningmidikeyboard.html ) But unfortunately I'm not able to get any cent deviation. I don't understand what I've done wrong. And I don't understand clearly what the giScale variable does. If someone could be so kind to explain my ( I guess very dull ) mistake, I would be very thankful. Here is my example: <CsoundSynthesizer> <CsOptions> -odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0 ;-odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0d </CsOptions> <CsInstruments> giScale ftgen 1, 0, -12, -2, 0, -34, -7, 10, -14, 3, -21, -3, -27, -10, 7, -17 massign 0, 1 instr 1 ikey = p4 ivel = p5 indx = ikey % 12 icent tab_i indx, 1 ifreqeq = cpsmidinn(ikey) ifreq = ifreqeq * cent(icent) prints "Key %d: equal-tempered frequency = %f; frequency with cent deviation %d = %f%n",ikey,ifreqeq,icent,ifreq kenv linsegr 0, .1, 1, 0.1, 1, .1, 0 anote foscil kenvivel, ifreq, 1, 1,kenv5, 1 out anote endin </CsInstruments> <CsScore> f1 0 8193 10 1 f 0 30 e </CsScore> </CsoundSynthesizer>

Date	2010-01-23 20:51
From	joachim heintz
Subject	[Csnd] Re: problem with cent deviations
	Hi Stefan - you are using the ftable number 1 twice: in the ftgen statement, and in the score statement. It's better to use the ftgen with 0 as first parameter. Then Csound chooses automatically an unique ftable number, and you just have to type anywhere giScale as the variable of the function table. So this should work: -odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0 giScale ftgen 0, 0, -12, -2, 0, -34, -7, 10, -14, 3, -21, -3, -27, -10, 7, -17 massign 0, 1 instr 1 ikey = p4 ivel = p5 indx = ikey % 12 icent tab_i indx, giScale ifreqeq = cpsmidinn(ikey) ifreq = ifreqeq * cent(icent) prints "Key %d: equal-tempered frequency = %f; frequency with cent deviation %d = %f%n",ikey,ifreqeq,icent,ifreq kenv linsegr 0, .1, 1, 0.1, 1, .1, 0 anote foscil kenvivel, ifreq, 1, 1,kenv5, 1 out anote endin f1 0 8193 10 1 e 3600 Ciao - joachim Am 23.01.2010 um 20:41 schrieb Stefan Thomas: > Dear community, > I tried out what I've read in the article "tuning Your midi- > keybord", in the last issue of the Csound-Journal. (http://www.csounds.com/journal/issue12/tuningmidikeyboard.html > ) > But unfortunately I'm not able to get any cent deviation. > I don't understand what I've done wrong. > And I don't understand clearly what the giScale variable does. > If someone could be so kind to explain my ( I guess very dull ) > mistake, I would be very thankful. > Here is my example: > > > -odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0 > ;-odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0d > > > giScale ftgen 1, 0, -12, -2, 0, -34, -7, 10, -14, 3, > -21, -3, -27, -10, 7, -17 > > massign 0, 1 > instr 1 > ikey = p4 > ivel = p5 > indx = ikey % 12 > icent tab_i indx, 1 > ifreqeq = cpsmidinn(ikey) > ifreq = ifreqeq * cent(icent) > prints "Key %d: equal-tempered frequency = %f; frequency with > cent deviation %d = %f%n",ikey,ifreqeq,icent,ifreq > kenv linsegr 0, .1, 1, 0.1, 1, .1, 0 > > anote foscil kenvivel, ifreq, 1, 1,kenv5, 1 > out anote > endin > > > f1 0 8193 10 1 > f 0 30 > e > > > Send bugs reports to this list. To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2010-01-23 20:56
From	Stefan Thomas
Subject	[Csnd] Re: Re: problem with cent deviations
	Dear Joachim, thanks for Your fast reply. I was really stupid, but I couldn't find the mistake. Now it works well! 2010/1/23 joachim heintz <jh@joachimheintz.de> Hi Stefan - you are using the ftable number 1 twice: in the ftgen statement, and in the score statement. It's better to use the ftgen with 0 as first parameter. Then Csound chooses automatically an unique ftable number, and you just have to type anywhere giScale as the variable of the function table. So this should work: <CsoundSynthesizer> <CsOptions> -odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0 </CsOptions> <CsInstruments> giScale ftgen 0, 0, -12, -2, 0, -34, -7, 10, -14, 3, -21, -3, -27, -10, 7, -17 massign 0, 1 instr 1 ikey = p4 ivel = p5 indx = ikey % 12 icent tab_i indx, giScale ifreqeq = cpsmidinn(ikey) ifreq = ifreqeq * cent(icent) prints "Key %d: equal-tempered frequency = %f; frequency with cent deviation %d = %f%n",ikey,ifreqeq,icent,ifreq kenv linsegr 0, .1, 1, 0.1, 1, .1, 0 anote foscil kenvivel, ifreq, 1, 1,kenv5, 1 out anote endin </CsInstruments> <CsScore> f1 0 8193 10 1 e 3600 </CsScore> </CsoundSynthesizer> Ciao - joachim Am 23.01.2010 um 20:41 schrieb Stefan Thomas: Dear community, I tried out what I've read in the article "tuning Your midi-keybord", in the last issue of the Csound-Journal. (http://www.csounds.com/journal/issue12/tuningmidikeyboard.html ) But unfortunately I'm not able to get any cent deviation. I don't understand what I've done wrong. And I don't understand clearly what the giScale variable does. If someone could be so kind to explain my ( I guess very dull ) mistake, I would be very thankful. Here is my example: <CsoundSynthesizer> <CsOptions> -odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0 ;-odac -Ma -b128 -B512 --midi-key=4 --midi-velocity-amp=5 -m0d </CsOptions> <CsInstruments> giScale ftgen 1, 0, -12, -2, 0, -34, -7, 10, -14, 3, -21, -3, -27, -10, 7, -17 massign 0, 1 instr 1 ikey = p4 ivel = p5 indx = ikey % 12 icent tab_i indx, 1 ifreqeq = cpsmidinn(ikey) ifreq = ifreqeq * cent(icent) prints "Key %d: equal-tempered frequency = %f; frequency with cent deviation %d = %f%n",ikey,ifreqeq,icent,ifreq kenv linsegr 0, .1, 1, 0.1, 1, .1, 0 anote foscil kenvivel, ifreq, 1, 1,kenv5, 1 out anote endin </CsInstruments> <CsScore> f1 0 8193 10 1 f 0 30 e </CsScore> </CsoundSynthesizer> Send bugs reports to this list. To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"