Notch Filter design for CQ93VC in DM368 for noise reduction

Appalayagari Sreedhar

Intellectual 885 points

Hi,

Is there any default settings available for notch filter for Internal Voice Codec CQ93VC in DM368 for voice processing.

I am observing noise when i do a arecord. How to eliminate this noise.

-Sreedhar.

over 12 years ago

0 Appalayagari Sreedhar over 12 years ago

Intellectual 885 points

Hi,

I am observing motor running noise in background when i do arecord and do the aplay of the captured audio.

could you please suggest how to remove the noise, will notch filter can make any difference.

-Sreedhar.

0 Prashant Andani over 7 years ago in reply to Appalayagari Sreedhar

Intellectual 810 points

HI,

my audio codec is CQ93VC for dm365.

i am also observing noise in audio. it may b environmental noise.

i also tried notch filter fc = 60Hz, fb = 120Hz and fs = 8000Hz but no more improvement.

could you please suggest how to remove the noise.

Regards,
Prashant

0 Amrutha S over 7 years ago in reply to Appalayagari Sreedhar

Prodigy 90 points

Hi,
I am also facing the same issue. Have you got any solution for this ?

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Notch Filter design for CQ93VC in DM368 for noise reduction