inleta — Receives an arate signal into an instrument through a named port.
Sname -- String name of the inlet port. The name of the inlet is implicitly qualified by the instrument name or number, so it is valid to use the same inlet name in more than one instrument (but not to use the same inlet name twice in one instrument).
asignal -- audio input signal
During performance, the arate inlet signal is received from each instance of an instrument containing an outlet port to which this inlet has been connected using the connect opcode. The signals of all the outlets connected to an inlet are summed in the inlet.
Here is an example of the inleta opcode. It uses the file inleta.csd.
Example 397. Example of the inleta opcode.
<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 inleta.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 ; Connect up instruments and effects to create the signal flow graph. connect "SimpleSine", "leftout", "Reverberator", "leftin" connect "SimpleSine", "rightout","Reverberator", "rightin" connect "Moogy", "leftout", "Reverberator", "leftin" connect "Moogy", "rightout","Reverberator", "rightin" connect "Reverberator", "leftout", "Compressor", "leftin" connect "Reverberator", "rightout","Compressor", "rightin" connect "Compressor", "leftout", "Soundfile", "leftin" connect "Compressor", "rightout","Soundfile", "rightin" ; Turn on the "effect" units in the signal flow graph. alwayson "Reverberator", 0.91, 12000 alwayson "Compressor" alwayson "Soundfile" ; Define instruments and effects in order of signal flow. instr SimpleSine ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Default values: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 pset 0, 0, 10, 0, 0, 0, 0.5 iattack = 0.015 idecay = 0.07 isustain = p3 irelease = 0.3 p3 = iattack + idecay + isustain + irelease adamping linsegr 0.0, iattack, 1.0, idecay + isustain, 1.0, irelease, 0.0 iHz = cpsmidinn(p4) ; Rescale MIDI velocity range to a musically usable range of dB. iamplitude = ampdb(p5 / 127 * 15.0 + 60.0) ; Use ftgenonce instead of ftgen, ftgentmp, or f statement. icosine ftgenonce 0, 0, 65537, 11, 1 aoscili oscili iamplitude, iHz, icosine aadsr madsr iattack, idecay, 0.6, irelease asignal = aoscili * aadsr aleft, aright pan2 asignal, p7 ; Stereo audio output to be routed in the orchestra header. outleta "leftout", aleft outleta "rightout", aright endin instr Moogy ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Default values: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 pset 0, 0, 10, 0, 0, 0, 0.5 iattack = 0.003 isustain = p3 irelease = 0.05 p3 = iattack + isustain + irelease adamping linsegr 0.0, iattack, 1.0, isustain, 1.0, irelease, 0.0 iHz = cpsmidinn(p4) ; Rescale MIDI velocity range to a musically usable range of dB. iamplitude = ampdb(p5 / 127 * 20.0 + 60.0) print iHz, iamplitude ; Use ftgenonce instead of ftgen, ftgentmp, or f statement. isine ftgenonce 0, 0, 65537, 10, 1 asignal vco iamplitude, iHz, 1, 0.5, isine kfco line 2000, p3, 200 krez = 0.8 asignal moogvcf asignal, kfco, krez, 100000 asignal = asignal * adamping aleft, aright pan2 asignal, p7 ; Stereo audio output to be routed in the orchestra header. outleta "leftout", aleft outleta "rightout", aright endin instr Reverberator ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Stereo input. aleftin inleta "leftin" arightin inleta "rightin" idelay = p4 icutoff = p5 aleft, aright reverbsc aleftin, arightin, idelay, icutoff ; Stereo output. outleta "leftout", aleft outleta "rightout", aright endin instr Compressor ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Stereo input. aleftin inleta "leftin" arightin inleta "rightin" kthreshold = 25000 icomp1 = 0.5 icomp2 = 0.763 irtime = 0.1 iftime = 0.1 aleftout dam aleftin, kthreshold, icomp1, icomp2, irtime, iftime arightout dam arightin, kthreshold, icomp1, icomp2, irtime, iftime ; Stereo output. outleta "leftout", aleftout outleta "rightout", arightout endin instr Soundfile ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Stereo input. aleftin inleta "leftin" arightin inleta "rightin" outs aleftin, arightin endin </CsInstruments> <CsScore> ; It is not necessary to activate "effects" or create f-tables in the score! ; Overlapping notes create new instances of instruments with proper connections. i "SimpleSine" 1 5 60 85 i "SimpleSine" 2 5 64 80 i "Moogy" 3 5 67 75 i "Moogy" 4 5 71 70 ;1 extra second after the performance e 1 </CsScore> </CsoundSynthesizer>