Re: how to remove the noise after A/D converter by using digital signal processing methods

[Yifang Xu <yifang.xu@xxxxxxxxx>]

I would first try some classic noise reduction methods such as
spectral subtraction or sub band spectral subtraction.

On 5/4/06, Wolfgang lau <lauwolfgang@xxxxxxxxx> wrote:
> Dear Experts and Friends,
>     I wish to get your advice how to remove the
> highly audible noise after A/D converter. My
> understanding is that three stages (microphone, analog
> amplifier and A/D converter itself)  might contribute
> the noise.
>     However, I can not to do anything about the noise
> in these three stages (because there have been fixed).
>  Your every advise and information how to remove the
> noise by using some digital signal processing methods
> such as digital filtering is highly appreciated.
>      Thank you for your time and help.
>
>
>     Wolfgang Lau
>
>
>
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