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wav file splitter

Started by cetintozkoparan in Audio Signal Processing16 years ago 3 replies

Hi all, I have a mixed wav file is consist of different voices. For example, a person is speaking and at the same time, there is playing a...

Hi all, I have a mixed wav file is consist of different voices. For example, a person is speaking and at the same time, there is playing a song on the background of speaker. I want to split this two different voices from this wav file and i want to have either song voice or speaker voice as different wav files. I tried lot's of ways like fft, low and high pass filters and so on, but i was ...


Fixed Beamformer doubt

Started by nity...@gmail.com in Audio Signal Processing16 years ago

Hello friends, I am using a fixed beamformer to filter an array of microphones but I have tried it many times & not getting positive result....

Hello friends, I am using a fixed beamformer to filter an array of microphones but I have tried it many times & not getting positive result. Please reply to my problem as soon as possible. Here I m writing about what I did in filtering... First of all I made a function for calculating the DASBF(delay & sum)weights: p = point location a= unit vector along DOA c=342 speed of sound then T...


DSP kit

Started by MC in Audio Signal Processing16 years ago 1 reply

First of all sorry for this email if someone thinks of it as a spam or a sale poster but I thought this would be a good forum for someone to...

First of all sorry for this email if someone thinks of it as a spam or a sale poster but I thought this would be a good forum for someone to benefit from this development board. Not sure if there are people on this list who might be experimenting with learning algorithms on a DSP kit but I did play around for a while with my ADSP 21065L Chip on an EZKIT. I learnt someof my basics on DSP , fi...


Twist and power level checks for DTMF detector using Goertezel

Started by bori...@abv.bg in Audio Signal Processing16 years ago

Hi all, I have developed a DTMF detector using Goerzel algorithm. The detector is based on a the one published by...

Hi all, I have developed a DTMF detector using Goerzel algorithm. The detector is based on a the one published by Phrack (http://www.phrack.org/issues.html?issue=50&id=13). As this detector does not meet the ITU Q.24 specifications, I am trying to implement them myself, but I have three questions and couln't find a simple explanation on the web. After studying that source it thought t...


Audio Quality Measurement or Comparison

Started by vish...@gmail.com in Audio Signal Processing16 years ago 1 reply

I m working on an assignment where in I have to split an audio channel into multiple sub bands using QMF filters. I wanted to know how can I...

I m working on an assignment where in I have to split an audio channel into multiple sub bands using QMF filters. I wanted to know how can I compare the quality of the input audio and the reconstructed audio. Is there any method to do the same using frequency transform, If yes how? Thanks in advance.


vocal detection and removal

Started by klic...@hotmail.com in Audio Signal Processing16 years ago 1 reply

Hi everybody, I'm a student who is working in a school project; honestly I don't have to much experience with DSP or filters. First I want to...

Hi everybody, I'm a student who is working in a school project; honestly I don't have to much experience with DSP or filters. First I want to detect the fundamental frequency of voice in an audio file. In the second part to suppress or remove the voice of an audio file, not necessary of a song. For example to record a conference and you want to suppress the voice of the speaker. I know that...


Problem in decoding g729 audio samples

Started by krav...@gmail.com in Audio Signal Processing16 years ago 1 reply

My aim is to dump the G.729 encoded audio samples packetized in RTP payload and then convert the G.729 encoded samples to MP3 format. What i'm...

My aim is to dump the G.729 encoded audio samples packetized in RTP payload and then convert the G.729 encoded samples to MP3 format. What i'm doing: 1. I got the G.729 encoded audio samples from RTP payload and saved as g729audio.ul on my machine using my c programm. 2. I'm using SOX as my converter to convert g729audio.ul to audio.wav(wav format). 3. Then, i'm using bladeencoder to co...


Re: distortion during wav file processing

Started by krav...@gmail.com in Audio Signal Processing16 years ago

Hey you could use CDD2WAV(open source) which can rip cd tracks to wav files regards, kontanoor > I am trying to play wav files from my...

Hey you could use CDD2WAV(open source) which can rip cd tracks to wav files regards, kontanoor > I am trying to play wav files from my computer and minimize > distortion. If anyone can answer any of my questions, that would be > very much appreciated. > > From what I understand, the wav file needs to be processed so that the > encoded digital audio signal can be generated. What factors c


Audio DSP board for subwoofer needed

Started by tipo...@hotmail.com in Audio Signal Processing16 years ago 2 replies

Hi, And my apologies if this kind of question doesn't belong here. I need AudioDSP/filter unit for active subwoofer with: - 2 floating inputs...

Hi, And my apologies if this kind of question doesn't belong here. I need AudioDSP/filter unit for active subwoofer with: - 2 floating inputs (left and right channels, summed up in DSP) - Adjustable HPF: 15-20 Hz / 12/24/48dB/oct - Adjustable LPF: 40-100 Hz / 12/24/48dB/oct - 3 independent EQ's: +/-8dB / Q=0.2-16 - Limiter - 6 single-end outputs: same signal to all outputs (except 2,4,6 h...


Developing multiband compressor: where do I go wrong?

Started by mp_n...@yahoo.com in Audio Signal Processing16 years ago 3 replies

Hi, I'm currently developing a multiband compressor having three bands. I didn't find much info on the internet regarding multiband compressors...

Hi, I'm currently developing a multiband compressor having three bands. I didn't find much info on the internet regarding multiband compressors implementation details, but this is what I did: - feed signal into each band's FIR filter; - the output of each filter goes into each band's singleband compressor; - the three filtered/compressed signals mix together and go into a final singleb...


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