Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
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wmta...@dcs.upd.edu.ph - Apr 9 2014
Hi I have a microphone(with preamp) connected to a microcontroller - I am able to get samples now, which could be converted to pressure since I have the sensitivity of the micropho...
kout...@hotmail.com - Feb 13 2014
I created a synthetic speech signal x[n] of 256 samples assuming that the source signal u[n] is an impulse train (not a glottal flow signal) and also I assumed that ...
prat...@gmail.com - Dec 26 2013
I want to convert audio sampled at 192KHz to 44.1kHz. It involves interpolation by 147 and decimation by 640. I'm designing filter coefficients us...
rich...@btinternet.com - Oct 9 2013
I am designing an audio DAC and my intention is to use a DSP to interface with the CD player to receive the optical or coaxial signal.
I have been examining the Elektor seri...
exactlybest - Sep 26 2013
Hi. I have a very accurate frequency detector that works pretty much perfectly with my guitar.
I want to implement certain features that involve note validity (user plays a note...
bauzane - Sep 26 2013
I'm an Italian university student. I'm trying to use FFTW libraries. I have problems but I don't know in which forum I may ask help so I try here. I wrote the following C program
benj...@gmail.com - Jul 24 2013
I have an audio app which generally displays dB levels as SPL calculated using dB = 20 * log10(p/p0)
But I want to also display RMS levels. Is it more typical to cal...
bw...@nchsoftware.com - May 27 2013
Given that the magnitude response of a first order all pass filter is perfectly flat, what reasons are there to consider a filter greater than one order? Presumably it is to do wit...
prat...@gmail.com - May 27 2013
I am implementing a 7-band graphic equalizer. The centre frequencies which i got from a link are 60Hz,150Hz,400Hz,1KHz,2.4KHz,6KHz,15KHz. My design is to imp...
deer...@tataelxsi.co.in - May 21 2013
I am planning to write a code for volume control. My input and output are .pcm files. I will be giving the required gain in dB.
If I give say 5dB as the gain factor, ...