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Qs:pvoc,soundin/diskin

Date1998-05-28 08:22
FromQian Chen
SubjectQs:pvoc,soundin/diskin
Dear Csounders,

I have the following questions recently:

1. When I used pvanal.exe to analysis wave files, and then used pvoc
to resynthesis them, I always got audible distortion.  The parameters
are as the following:
	sample rate:	44100
	Channels:	1
	STFT frame size:1024
	Window overlap:	4
Should I make STFT frame size bigger or use hopsize parameter?

2. This one is still about pvoc.  When I compiled my Csound orc & sco
files, I got the following warnings:
SECTION 1:
new alloc for instr 1:
file c:\essay\af/95-vc04L.pvc (11753912 bytes) loaded into memory
file c:\essay\af/95-vc04R.pvc (11753912 bytes) loaded into memory
WARNING: PVOC ktimpnt truncated to last frame
WARNING: PVOC ktimpnt truncated to last frame
B  0.000 .. 16.639 T 16.639 TT 16.639 M:  19956.8  20469.2
What do they mean?


3.I have a suggestion - if some of you disagree it, please advise:
  Both soundin and diskin can read a sound file skipping some time of
the file.  Therefore, why isn't there a parameter to specify the
duration a user wants it to read?  For example, if I want to skip 2
seconds and just read 5 seconds but not the whole files after the 2
seconds, I could use that parameter.  Of course, I know I could use an
analysis file to realize it.  But I do think it must be easier and
quicker if we add a parameter to soundin and diskin.

Any comment is welcomed and thanks for your bandwidth.

Qian Chen
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