MixerGetLevel — Gets the level of a send to a buss.
Plugin opcode in mixer
Gets the level at which signals from the send are being added to the buss. The actual sending of the signal to the buss is performed by the MixerSend opcode.
isend -- The number of the send, for example the number of the instrument sending the signal.
ibuss -- The number of the buss, for example the number of the instrument receiving the signal.
kgain -- The level (any real number) at which the signal from the send will be mixed onto the buss.
This opcode reports the level set by MixerSetLevel for a send and buss pair.
Use of the mixer requires that instruments setting gains have smaller numbers than instruments sending signals, and that instruments sending signals have smaller numbers than instruments receiving those signals. However, an instrument may have any number of sends or receives. After the final signal is received, MixerClear must be invoked to reset the busses to 0 before the next kperiod.
Here is an example of the MixerGetLevel opcode. Play Mixer.csd
Example 622. Example of the MixerGetLevel opcode.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform ; Audio out Audio in -odac ; -iadc ;;;RT audio out ; For Non-realtime ouput leave only the line below: ; -o Mixer.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 katt expon 0.01, p3, 1 ;create an attack aout poscil .7, 440,1 MixerSetLevel 1, 3, katt ;impose attack on the gain level MixerSend aout, 1, 3, 0 ;send to channel 0 endin instr 2 aout vco2 .5, 110 ;saw wave MixerSetLevel 2, 3, .25 ;set level to .25 of vco2 MixerSend aout, 2, 3, 1 ;send to channel 1 endin instr 3 ;mix instr.1 and 2 with reverb kgain1 MixerGetLevel 1,3 ;get level form buss 3 kgain2 MixerGetLevel 2,3 ;get level form buss 3 a1 MixerReceive 3,0 ;receive channel 0 a2 MixerReceive 3,1 ;receive channel 1 aout = a1*kgain1+a2*kgain2 ;mix them aoutL, aoutR reverbsc aout, aout, 0.85, 12000 ;add a nice reverb outs aoutL, aoutR MixerClear endin </CsInstruments> <CsScore> f1 0 4096 10 1 i1 0 2 i2 0 2 i3 0 8 ;reverb stays on for 8 sec. e </CsScore> </CsoundSynthesizer>