[Csnd] kgoto issue
| Date | 2013-11-24 15:15 |
| From | Pablo Frank |
| Subject | [Csnd] kgoto issue |
| Attachments | spectrogram.jpg kgoto.wav |
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Using
the kgoto at the a) code below, the first sine is not silenced after 1.5 seconds, but
it's listened with a sort of aliasing (spectrogram and wave attached). If a1=0 is put at the very end of the instr 1, as in the code at b) so the a1 is not listened at all. What's the matter? The code: a) <CsoundSynthesizer> <CsOptions> -odac -iadc -d ;;;RT audio I/O
</CsOptions> <CsInstruments>
sr = 44100 kr = 4410 ksmps = 10 nchnls = 1
instr 1
kcounter line 0, p3, p3 ; time counter
if kcounter > 1.5 kgoto second ; after 1.5 secs
a1 oscil 2000, 330, 1 ; first oscil
second: a2 oscil 2000, 220, 1 ; second oscil
out a2 + a1 endin </CsInstruments> <CsScore>
f1 0 4096 10 1
; Play Instrument #1 for 2 seconds. i 1 0 5 e
</CsScore> </CsoundSynthesizer> b) <CsoundSynthesizer> <CsOptions> -odac -iadc -d ;;;RT audio I/O
</CsOptions> <CsInstruments>
sr = 44100 kr = 4410 ksmps = 10 nchnls = 1
instr 1
kcounter line 0, p3, p3 ; time counter
if kcounter > 1.5 kgoto second ; after 1.5 secs
a1 oscil 2000, 330, 1 ; first oscil
second: a2 oscil 2000, 220, 1 ; second oscil a1 = 0
out a2 + a1 endin </CsInstruments> <CsScore>
f1 0 4096 10 1
; Play Instrument #1 for 2 seconds. i 1 0 5 e
</CsScore> </CsoundSynthesizer> |
| Date | 2013-11-24 15:23 |
| From | Justin Smith |
| Subject | Re: [Csnd] kgoto issue |
in the first case, the goto prevents a1 from being generated, but the a1 signal is still being used, so the last values put in a1 will be reused, generating a sound at 4410 hz (since each a buffer is ksmps long, and you are repeating a random a buffer).
On Sun, Nov 24, 2013 at 7:15 AM, Pablo Frank <frank_pablo@hotmail.com> wrote:
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