Bugs item #3349333, was opened at 2011-07-02 14:02
Message generated for change (Comment added) made by veplaini
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Category: Opcodes
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Tarmo Johannes (tarmoj)
>Assigned to: Victor Lazzarini (veplaini)
Summary: compress does not work wit 0dbfs=1

Initial Comment:
If the max 0dbfs is set to 1, compress opcode does not compress the the sound over limit any more. Example code:

<CsoundSynthesizer>
<CsOptions>
</CsOptions>
<CsInstruments>
sr = 44100
ksmps = 10
nchnls = 1
0dbfs = 32767 ;1

instr 1
	imaxamp=1.5 * 0dbfs
	print imaxamp
	kamp linseg 0, p3/2, imaxamp, p3/2,0
	asine oscil kamp,220,1 

	acomp compress asine,asine, 0,89,89, 100, 0.01, 0.1, 0.05 
	out acomp
endin

</CsInstruments>
<CsScore>
f 1 0 2048 10 1 0.9 0.8 0.7

i 1 0 5

</CsScore>
</CsoundSynthesizer>

if 0dbfs is set to 1, the result is:

overall amps:  1.49972
	   overall samples out of range:     9763

if to 32767:
 overall amps:  31815.2
	   overall samples out of range:        0


Csound 5.13.0 double precision
openSuse Linux 11.3

----------------------------------------------------------------------

>Comment By: Victor Lazzarini (veplaini)
Date: 2011-07-02 17:22

Message:
Code assumes 16bit range; fixed now to take signals in any range

----------------------------------------------------------------------

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https://sourceforge.net/tracker/?func=detail&atid=564599&aid=3349333&group_id=81968

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