sin — Calcule une fonction sinus.
Voici un exemple de l'opcode sin. Il utilise le fichier sin.csd.
Exemple 975. Exemple de l'opcode sin.
Voir les sections Audio en Temps Réel et Options de la Ligne de Commande pour plus d'information sur l'utilisation des options de la ligne de commande.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o sin.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 isin1 = sin(0) ;sine of 0 is 0 isin2 = sin($M_PI_2) ;sine of pi/2 (1.5707...) is 1 isin3 = sin($M_PI) ;sine of pi (3.1415...) is 0 isin4 = sin($M_PI_2 * 3) ;sine of 3/2pi (4.7123...) is -1 isin5 = sin($M_PI * 2) ;sine of 2pi (6.2831...) is 0 isin6 = sin($M_PI * 4) ;sine of 4pi is also 0 print isin1, isin2, isin3, isin4, isin5, isin6 endin instr 2 ;sin used in panning, after an example from Hans Mikelson aout vco2 0.8, 220 ; sawtooth kpan linseg p4, p3, p5 ;0 = left, 1 = right kpan = kpan*$M_PI_2 ;range 0-1 becomes 0-pi/2 kpanl = cos(kpan) kpanr = sin(kpan) outs aout*kpanl, aout*kpanr endin </CsInstruments> <CsScore> i 1 0 0 i 2 0 5 0 1 ;move left to right i 2 5 5 1 0 ;move right to left e </CsScore> </CsoundSynthesizer>
Sa sortie contiendra cette ligne :
instr 1: isin1 = 0.000 isin2 = 1.000 isin3 = 0.000 isin4 = -1.000 isin5 = -0.000 isin6 = 0.000