[music-dsp] can i reconstruct a certain signal using dsp ...

[Wen X]

abu,

it's a typical application of dsp for sounds. as to lectures, the technique
called speech enhancement, vastly applied in hearing aids, is a proper
technique to raise the quaility--especially the intelligibility of noisy
speech. as far as the characteristics of speech are not considered, a lot of
noise reduction techniques are implemented by (adaptive) filtering, which is
a good topic of dsp. however, each related area is complex enough to cover
broad topics in the literature. to start with dsp it's best to take a course
in ee or cs. a classics textbook in dsp is "discrete-time signal processing"
by oppenheim, etc. for dsp techniques in speech rabiner's "digital
processing of speech signals" is a good reference, although not fully
dedicated in speech enhancement.

best,
xue


----- Original Message ----- 
From: "Abu Abdullah" <980711446 at uaeu.ac.ae>
To: <music-dsp at ceait.calarts.edu>
Sent: Friday, August 06, 2004 4:00 PM
Subject: [music-dsp] can i reconstruct a certain signal using dsp ...


> I've currently been interested in learning about signals and filters
> with dsp.
>
> The reason which stimulated this interest was the fact that i own many
> casstte containing audio leactures for certain subject given by a person.
> Some of these lectures are not clear - alot of noise, either background
> noise, mechanical noise (since the recorder was too old) -  and require
> high level of attention while raising the volume of the walkman.
> After hearing about filtering and noise reduction, I thought that it may
> be possble to reshape (enhance) these audio lectures and get a clear
> voice from them.
> The first step i did, was searching for tutorials on dsp, until i found
> an online reference - dspguide.com -
> NOW...
>     -1- Is it possible to reconstruct ( or to enhance the quality of the
> voice ) of these old cassttes using dsp ?
>     -2- Is dspguide book is good to continue in this field ? is there
> any other better tutorials ?
>
> Thanks in advance...
>
>  From Abu Abdullah
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