Hi!
  As far as I am aware, your files should:
1. Stick to the samplerate given by sr in the orc-files. So if you have
sr = 4410
  Then your own files should be sampled (or converted to) 44.1kHz.
2. I think loscil takes its samples from a wave table, which might only 
support MONO files. What sense would it make for an loscil-sample to be 
stereo. If you like both channels of a stereo file. Split the original, 
perhaps with csound as well and then read them in two function-tables and 
use two loscils and mix their output.
  Probably you should also stick to the actual bitrate, but I don't know that 
exactly, only worked with 16bit with csound.
  Hope that helps!
  Kindest regards
           Julien

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El Sat, 29 Sep 2007 19:00:33 -0300
Brian Wong  escribió:

> The file supplied on the website sing.aif works fine, but my sample
> file will not. 

a bit of additional information would be useful to be able to help you.
in which way your sound file "does not work"? what kind of file are you
trying to use? csound comes with an utility called "sndinfo" that does
what its name suggests. what's the output of that command on your sound
file?

best,

lj

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From: brian.wong1@hotmail.com
To: csound@lists.bath.ac.uk
Date: Sat, 29 Sep 2007 21:58:51 -0300
Subject: Re: [Csnd] Sample file format

Thank you to both Luis and Julien for your response to my question.
 
Apparently loscil will work with either mono or stereo, according to the manual.
 
With the sndinfo command (thanks, that will be useful!) my sound file gives basically the same results with both my sample and sing.aif, which is :
srate 44100, monaural, 16 bit AIFF, 0.201 seconds
I should add this is the same sample that worked with soundin as a .wav. I converted it to .aif for use with loscil using wavesurfer.exe. By "not working" what I mean is that I don't hear anything except a slight clicking sound. The resulting aif sample plays fine in various audio players.
 
I have looked at the Csound dialog output and see the two following warnings :
WARNING: no legal base frequency
WARNING: locscil: sustain defers to non-looping source
 
So it looks like either the base frequency or loop points might be the problem. I have tried setting the frequency argument in loscil to 0 to try to make it use the csound default value, but this was not successful, nor was using 440 as the base frequency. I am not sure how to find out what the base frequency of the sample is.
 
Thanks in advance for any assistance you can offer!
 

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