How to increase audio file gain

Started by Rohith MP in Audio Signal Processing10 years ago 1 reply

Hi all, I have a two audio files ..File A and File B. File A has overall gain of -23dB and File B has gain of -5 dB , Now If i want to...

Hi all, I have a two audio files ..File A and File B. File A has overall gain of -23dB and File B has gain of -5 dB , Now If i want to equalize the gain i.e amplify the File A to match it to File B without degrading audio quality how to achieve this? Anticipating a reply. Thanks in advance. Warm Regards, Rohith M P


AUDIO jitter

Started by qbq7...@yahoo.com.cn in Audio Signal Processing10 years ago 1 reply

I've read some document about jitter.But there is a problem, how does it effect the performance of audio dac ? In my application , I need to...

I've read some document about jitter.But there is a problem, how does it effect the performance of audio dac ? In my application , I need to generate mclks for audio dac , But I could not know whether the clock is clean enough, Is there any menthod can evaluate it ? Thanks !


Active Noise Cancellation using NLMS

Started by jeba...@yahoo.co.in in Audio Signal Processing10 years ago

Hi everyone, I am working on Active Noise Cancellation project using NLMS for Headphone. I am using two microphones. one is for reference...

Hi everyone, I am working on Active Noise Cancellation project using NLMS for Headphone. I am using two microphones. one is for reference signal(x[n]). other one is for error signal(e[n]). Our system is not cancelling well when testing with white noise. But cancelling well enough only at 125Hz & 500Hz when testing with mixed signal(mix of 62.5Hz, 125Hz, 250Hz,.... 8KHz). I am getting the same r...


Help with ideas for alternatives to the Fourier transform

Started by inhahe in Audio Signal Processing10 years ago

Hi, I am looking for an alternative solution to FFT to get a real-time spectral analysis of a signal. If I understand it correctly, there are...

Hi, I am looking for an alternative solution to FFT to get a real-time spectral analysis of a signal. If I understand it correctly, there are some problems incurred by using FFT because it can only be done on blocks of data at a time. 1) if I wanted to analyze at least down to 20hz, my block sizes would have to be at least 1/20 seconds long, which means there would be a 50-millisecond+ d...


Method of removing voice from music

Started by jr_vignesh in Audio Signal Processing10 years ago 3 replies

Anybody please tell me by what means, a voice can be removed from an audio signal. Is this just an application of band pass filter on the...

Anybody please tell me by what means, a voice can be removed from an audio signal. Is this just an application of band pass filter on the actual signal or completely different approach?


jitter

Started by qbq7...@yahoo.com.cn in Audio Signal Processing10 years ago 1 reply

Hi all , I'm a new in this area . Can you tell me something about jitter effect in digital to analogy convertion? Thanks !

Hi all , I'm a new in this area . Can you tell me something about jitter effect in digital to analogy convertion? Thanks !


What happened to NCT's "Adaptive Speech Filter"

Started by g6ge...@amsat.org in Audio Signal Processing10 years ago

I need a fast track method to implement a wind and road noise filter on a SHARC based custom two-way radio audio interface. I have an embedded...

I need a fast track method to implement a wind and road noise filter on a SHARC based custom two-way radio audio interface. I have an embedded background, but my DSP experience is limited to implementing simple filters using the Analog Devices library. Because of this, I believe my best option would be to use a commercially available algorithm. I've had very promising results with the PC based ...


FPGA or DSP

Started by Ariel Hernandez in Audio Signal Processing11 years ago 3 replies

Hello there! People of the Audio Digital Processing.. I have a big problem!!! Jejeje. No. I have a problem. I want to work in ProAudio, and my...

Hello there! People of the Audio Digital Processing.. I have a big problem!!! Jejeje. No. I have a problem. I want to work in ProAudio, and my question is, DSP or FPGA? My idea is to improve the Audio Quality in several aplicattions. I have to work with THD, SNR and DA/AD Converters. I don't know if the FPGA works for these parameters.. Someone can help me? Vielen Dank!


reinventing the 1/3 octave wheel

Started by b.ch...@linkeng.com in Audio Signal Processing11 years ago 3 replies

Hi All, I am a total newbie to this group, a lonmgtime programmer but with no DSP experience. I have been lurking in this group for a little...

Hi All, I am a total newbie to this group, a lonmgtime programmer but with no DSP experience. I have been lurking in this group for a little while, trying to get up to speed. Please forgive any stupid questions here... I'm trying to write some code (in Borland Delphi or MSVC) to process a stream of audio samples from a sound card into 1/3 octave buckets - essentially a spectrum analyzer. I'...


adaptive filter-is this possible?

Started by unga...@gmail.com in Audio Signal Processing11 years ago 2 replies

I have a mixed speech+explosion noise. I am trying to give this mixed signal as input to an adaptive filter with the same explosion noise as...

I have a mixed speech+explosion noise. I am trying to give this mixed signal as input to an adaptive filter with the same explosion noise as reference. I am not able to get the clean speech as output. It was found that speech and the explosion exactly have same frequencies. How can I do it using adaptive filtering in Matlab? pls. suggest


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