Subject: [linux-audio-user] Removing noise without metallic artifacts? (Was: Removing distortion)
From: Kingsley G. Morse Jr. (change_AT_nas.com)
Date: Sat Jul 13 2002 - 21:10:42 EEST
Thanks for reminding me how bad the raw data sounds.
I've probably gotten used to it after listening to it
a zillion times.
I'm happy to report that I have another copy of it
with less distortion.
Here's the big but.
BUT, also with a worse signal to noise ratio.
It's at
http://www.nas.com/~change/private/Sandi.1_at_16b_and_44.1_khz.wav
(Watch out if you have a slow net connection. It's
six megabytes. I resampled it to 44.1 khz and 16
bits.)
I've had some success removing noise with gmc, but
haven't been able to avoid making the result sound
metallic.
I'd be grateful for advice on how to remove noise
without creating a metallic sound.
Thanks,
Kingsley
On Thu:12:03, Steve Harris wrote:
> On Thu, Jul 11, 2002 at 12:56:29 +0200, Joern Nettingsmeier wrote:
> > > There's something weird about it but its not an endian-ness problem.
> > >
> > > I think is just a really, really, REALLY crappy recording.
> > >
> > > Since this is more that just clipping, you will not be able to remove
> > > the distortion.
> >
> > if this is all there is, forget it. try to transcribe the words, and
> > throw it away :(
>
> I still think its a format error, /dev/audio v's /dev/dsp or something.
> /dev/audio is uLaw IIRC. And the distortion sounds kindof familiar.
>
> Ofcourse if the "16bit PCM" wavfile is all you have it may not be
> recoverable.
>
> - Steve
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