;Written by Iain McCurdy, 2009

;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)
0dbfs	= 1			;MAXIMUM SOUND INTENSITY LEVEL REGARDLESS OF BIT DEPTH


giExp1		ftgen	0, 0, 129, -25, 0, 0.001, 128, 1.0		;TABLE FOR EXP SLIDER
giExp1000		ftgen	0, 0, 129, -25, 0, 1.0, 128, 1000.0	;TABLE FOR EXP SLIDER


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
		klimit		invalue	"Limit"
		gklimit		tablei	klimit, giExp1, 1
					outvalue	"Limit_Value", gklimit			;init 0.001
		gkarg		invalue	"Clipping_Point"				;init 0.5
		kpostgain		invalue	"Post_Gain"
		gkpostgain	tablei	kpostgain, giExp1000, 1
					outvalue	"Post_Gain_Value", gkpostgain		;init 100
		gkmeth		invalue	"Method"						;init 0
	endif
endin

instr	2
	Sfile		invalue	"_Browse1"
	asig, asigR	FilePlay2	Sfile, 1, 0, 1
	kSwitch		changed	gklimit, gkmeth, gkarg						;GENERATE A MOMENTARY '1' PULSE IN OUTPUT 'kSwitch' IF ANY OF THE SCANNED INPUT VARIABLES CHANGE. (OUTPUT 'kSwitch' IS NORMALLY ZERO)
	if	kSwitch=1	then												;IF A VARIABLE CHANGE INDICATOR IS RECEIVED...
		reinit	START											;...BEGIN A REINITIALISATION PASS FROM LABEL 'START' 
	endif														;END OF CONDITIONAL BRANCHING
	START:														;LABEL
	ares			clip 	asig, i(gkmeth), i(gklimit), i(gkarg)
				rireturn											;RETURN TO PERFORMANCE PASSES FROM INITIALISATION PASS
				outs		ares * gkpostgain, ares * gkpostgain
endin
</CsInstruments>
<CsScore>
;INSTR | START | DURATION
i 1		0	   3600	;GUI
</CsScore>
</CsoundSynthesizer>



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  <label>---------------------------------------------------------------
The 'clip' opcode provides audio signal soft clipping using one of three different methods.
'Limiting Value' defines the maximum amplitude that will be passed unclipped. In this example maximum amplitude has been defined as '1' therefore, in this instance, this value ranges up to 1.
'Clipping Point' defines the point at which clipping starts and is only ised in the Bram de Jong method.
A 'Post Gain' control is included so that the user can compensate for the loss of gain that occurs when the signal is clipped.</label>
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  <font>Arial</font>
  <fontsize>14</fontsize>
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  <label>Clipping Point (B.d.J Method only)</label>
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  <font>Arial</font>
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  <midicc>0</midicc>
  <type>event</type>
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  <stringvalue/>
  <text>   On / Off</text>
  <image>/</image>
  <eventLine>i 2 0 -1</eventLine>
  <latch>true</latch>
  <latched>false</latched>
 </bsbObject>
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<bsbPresets>
</bsbPresets>
<EventPanel name="" tempo="60.00000000" loop="8.00000000" x="913" y="162" width="655" height="346" visible="false" loopStart="0" loopEnd="0">    </EventPanel>
