Newsgroups: sci.electronics.misc
Subject: Re: Digital recorder to CD
References: <[email protected]>
[email protected] (Johan Smit) writes:

> Hi,
> I have a Casio digital recorder, and downloads the files to the PC.
> Then I convert the file to standard Windows Wav.
> So far everything is fine, and the sound is good, but when I then
> write it to CD, it sounds awful. 

In what way does it sound awful ?

> I tried all I can think of, with no better results.
> I can only think that the low sampling rate of 8000Hz interferes with
> the CD sampling.
> Any solution please?

It could be related to the sampling rate and the conversion 
done on the way when the sound gets to CD. The CD is sampled 
at 44.1 kHz sample rate. If you convert the files you have with 
a good file converter to ones with 44.1 kHz sample rate, you 
should be able to get as good sound to the CD as those files give 
on playback.

> I was thinking of taking the audio out from the sound card, which
> sounds good, to the mic in of another sound card, and re-record at a
> better sampling rate.

One possible solution, but somewhat hard I think. 
And with many soudncard with right settings you should
be able to do this with one soundcard only. 

But generally what you can do with soundcard in this way, 
you can do with software. Try some good sample editing 
software how well it does the sample rate conversion. 
And do some filtering if needed.

> Problemn is that it is apparently not possible to run two sound cards
> simultaneously.

The PC hardware itself does not limit the number of soundcards you can use.
The soundcard drivers and Windows sound system architecture could 
be the reson for this...

> Any help will be much appreciated.
> Thank you
> Johan Smit

-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at 
http://www.epanorama.net/