;Written by Iain McCurdy, 2006

;Modified for QuteCsound by René, September 2010, updated Feb 2011
;Tested on Ubuntu 10.04 with csound-float 5.13.0 and QuteCsound svn rev 817

;Notes on modifications from original csd:
;	Add table(s) for exp slider
;	Add Browser for audio file and use of FilePlay2 udo, now accept mono or stereo wav files


;my flags on Ubuntu: -iadc -odac -b1024 -B2048 -+rtaudio=alsa -+rtmidi=null -m0
<CsoundSynthesizer>
<CsOptions>
--env:SSDIR+=../../SourceMaterials
</CsOptions>
<CsInstruments>
sr		= 44100		;SAMPLE RATE
ksmps	= 32			;NUMBER OF AUDIO SAMPLES IN EACH CONTROL CYCLE
nchnls	= 2			;NUMBER OF CHANNELS (2=STEREO)


;TABLE FOR EXP SLIDER
giExp1		ftgen	0, 0, 129, -25, 0, 0.001, 128, 1.0


opcode FilePlay2, aa, Skoo		; Credit to Joachim Heintz
	;gives stereo output regardless your soundfile is mono or stereo
	Sfil, kspeed, iskip, iloop	xin
	ichn		filenchnls	Sfil
	if ichn == 1 then
		aL		diskin2	Sfil, kspeed, iskip, iloop
		aR		=		aL
	else
		aL, aR	diskin2	Sfil, kspeed, iskip, iloop
	endif
		xout		aL, aR
endop


instr	1	;GUI
	ktrig	metro	10
	if (ktrig == 1)	then
		gkpregain		invalue	"Pregain"					;init 10.0	
		kpostgain		invalue	"Postgain"				;init .4
		gkpostgain	tablei	kpostgain, giExp1, 1
					outvalue	"Postgain_Value", gkpostgain	;init 0.4
			
		gkshape1		invalue	"Shape1"					;init 0	
		gkshape2		invalue	"Shape2"					;init 0	
	endif
endin

instr 2
	Sfile			invalue	"_Browse1"
	asigL, asigR		FilePlay2	Sfile, 1, 0, 1									;AUDIO SIGNAL READ FROM DISC
	adistortL			distort1	asigL, gkpregain, gkpostgain, gkshape1, gkshape2		;CREATE 'distort1' SIGNAL
	adistortR			distort1	asigR, gkpregain, gkpostgain, gkshape1, gkshape2		;CREATE 'distort1' SIGNAL
					outs		adistortL, adistortR							;SEND AUDIO TO OUTPUTS
endin
</CsInstruments>
<CsScore>
;INSTR | START | DURATION
i 1		0	   3600	;GUI
</CsScore>
</CsoundSynthesizer>




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  <label>-------------------------------------------------------------------------------------
Distort1 implements modified hyperbolic tangent distortion. Distort1 can be used to generate wave shaping distortion based on a modification of the tanh function. 'Pregain' determines the amount of gain that is applied to the audio signal before waveshaping. A value of 1 gives a slight distortion. 'Postgain' controls the gain of the signal after waveshaping. Increasing 'pregain' increases the amount of distortion of the signal. High values for 'pregain' may require compensating low values for 'postgain' in order to prevent csound producing samples out of range. 'Shape 1' shapes the positive part of the signal. A value of zero produces flat clipping of the positive part of the signal. Values slightly above zero produce sloped shaping. 'Shape 2' gives similar shaping control of the negative part of the signal.</label>
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  <text>   On / Off</text>
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  <label>Restart the instrument after changing the audio file.</label>
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