inleta

Receives an arate signal into an instrument through a named port.

Plugin opcode in signalflowgraph

Syntax

asignal inleta Sname

Initialization

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).

Performance

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 Examplese>

Here is an example of the inleta opcode. It uses the file inleta.csd.

<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> 

See also

Signal Flow Graph Opcodes

More information on this opcode: http://www.csoundjournal.com/issue13/signalFlowGraphOpcodes.html, written by Michael Gogins

Credits

By: Michael Gogins 2009