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Discussion Groups | Audio Signal Processing
Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
mpeg1 audio psychoacustic model in fixed point [3 Articles]
Juan Casal - Sep 27 2007
Hi,
We are implementing an mpeg1 audio encoder in a fixed point dsp but we have problems in migrating the psychoacustic model to fixed point (all the log al pow instructions).
... 
Converting FIR from IIR [7 Articles]
itza...@yahoo.co.in - Sep 20 2007
Hi all,
I have designed a FIR filter which has 60 DB SNR.Also I designed IIR filter at 60 DB SNR. FIR taps is around 700 whereas IIR is 12.
So I want to design IIR.But I want li... PS conformance test vectors
Mel George - Sep 19 2007
Hi,
Could someone pls let me know as to where to obtain the HEAAC v2
(Parametric Stereo) reference test vectors. I downloaded the input
test vectors from the ISO website but ... Expressing magnitude of frequency response in dB in Matlab
wahe...@yahoo.com - Aug 30 2007
Hi Everyone,
I am working on speech enhancement for hearing impairment. In that I need to express magnitude of frequency response in dB, so that the scale is from 0 - 120 dB. Can ... texas dsp chip appropiate for simple audio processing [8 Articles]
edyazz_mp3player - Aug 26 2007
Hi! I'm new on dsp and i have some doubt. If i want to implemment some
simple audio processor on a texas dsp(input 12 or maybe up to 16 bits,
with a few effects and features like... Looking for some journals/reports on 'frequency shaping' and 'amplitude compression' for heaing aid [2 Articles]
wahe...@yahoo.com - Aug 15 2007
Hi all!
I am working on designing a digital hearing aid as my MSc project. I have already done the simulation part, but for my report I need some stuff on 'Frequency Shaping' and ... Re: Dither
mnen...@elisanet.fi - Aug 13 2007
Hello,
dither decreases the SNR slightly, that's correct.
Without dither, quantization noise will easily turn systematic, and the ear is very sensitive to the "pattern". For... Extracting SNR from FFT [3 Articles]
je0062002 - Aug 8 2007
Dear All
Does anyone here already coded a SNR computation from FFT bins ?
I already coded a FFT algo in C, it is ok, but I cannot succeed in
coding a SNR extraction from the FF... Regarding frame data in avi files
Pallavi - Jul 31 2007
Hi Everybody,
I am working on avi parser, i want to know whether the chunk data
specified in the movi atom contains only one frame of data
or multiple frames of data.
i... Speech records obtained from two directional microphone
wahe...@yahoo.com - Jul 30 2007
Hi Everybody,
I am working on noise cancellation using directional microphones. Can anyone plz tell me where can I obtained such speech/voice records from the interne...