Audio jamming using white noise (Matlab code)

Started by shruti in comp.dsp16 years ago

Hi anybdy have any idea how can a baseband audio sound can be supressed or jammed using a white gaussian noise and how the result can be shown...

Hi anybdy have any idea how can a baseband audio sound can be supressed or jammed using a white gaussian noise and how the result can be shown in Matlab. any help will be appreciated. -Shruti


Audio jamming using white noise (Matlab code)

Started by shruti in comp.dsp16 years ago 2 replies

Hi anybdy have any idea how can a baseband audio sound can be supressed or jammed using a white gaussian noise and how the result can be shown...

Hi anybdy have any idea how can a baseband audio sound can be supressed or jammed using a white gaussian noise and how the result can be shown in Matlab. any help will be appreciated. -Shruti


Audio Low Frequency Instability

Started by Dirk Bruere at NeoPax in comp.dsp15 years ago 24 replies

Can anyone point me to the reasons why IIR peaking filters become unstable at low audio frequencies? And, of course, how to get around this...

Can anyone point me to the reasons why IIR peaking filters become unstable at low audio frequencies? And, of course, how to get around this problem? I need a set of peaking filters that operate between 10Hz and 100Hz. Dirk


Re: New Digital Audio Standard?

Started by Keith Larson in comp.dsp19 years ago

Hi Everyone > It also reduces the input slew rate. This doesn't matter if the > system is perfectly linear, but do we know that it is? ...

Hi Everyone > It also reduces the input slew rate. This doesn't matter if the > system is perfectly linear, but do we know that it is? > > Regards, > Allan. As long as this thread is still active and talking about new audio standards, this might peak some interest. Interestingly it was thinking about the importance of slew rate and how this relates to dynamics since that is


Help needed in audio conversion

Started by Anonymous in comp.dsp16 years ago 4 replies

Hello All, I am currently looking for an 2 channel to 5.1 channel audio conversion algorithm implementation, plz can anybody...

Hello All, I am currently looking for an 2 channel to 5.1 channel audio conversion algorithm implementation, plz can anybody help in regarding this, as there may be a set of formulas or algorithm available. Thanks a lot in advance, With warm regards, -Prasad B C


Using to QAM to compress video/audio -- practical or not?

Started by Green Xenon [Radium] in comp.dsp15 years ago 6 replies

Hi: Is it rational to compress video/audio -- for storing in a device with limited capacity or transferring on the internet via low-bandwidth...

Hi: Is it rational to compress video/audio -- for storing in a device with limited capacity or transferring on the internet via low-bandwidth connection -- using QAM? Has this ever been done before? If so, what did the resulting artifacts look/sound like? Thanks, Radium


On ADSP BF537 EZ kit Lite interface with Audio DAC

Started by isnithin in comp.dsp14 years ago

Hello, I am working with Analog Devices Blackfin BF537 EZ Kit Lite board. I am storing the 16 bit audio samples of a PCM .wav file in the...

Hello, I am working with Analog Devices Blackfin BF537 EZ Kit Lite board. I am storing the 16 bit audio samples of a PCM .wav file in the memory. My implementation is as follows


which audio processing algorithms are still done in hardware?

Started by bharat pathak in comp.dsp12 years ago 19 replies

With ARM processors becoming increasingly fast and low power, I was wondering which audio processing algorithms are still done in...

With ARM processors becoming increasingly fast and low power, I was wondering which audio processing algorithms are still done in hardware? Bharat


dsp chips fpr audio

Started by ramumusic in comp.dsp15 years ago 3 replies

any cheap dsp chips for audio effects boards?

any cheap dsp chips for audio effects boards?


Stereo audio and Equalizer

Started by snigdha in comp.dsp17 years ago 10 replies

Hi, I am doing my study on graphic and parametric equalizers. I read through some of the previous posts on this site and was really helpful....

Hi, I am doing my study on graphic and parametric equalizers. I read through some of the previous posts on this site and was really helpful. I have one small question though. When I am presented with a stereo audio signal, would it be advisable for me to process the two channels using two separate IIR filter bands? Or just assuming the data to be continuous, can I just use one filter? Th...


Which audio format is used between ICs?

Started by Kai Markus Tegtmeier in comp.dsp19 years ago 3 replies

Hello to everyone! I'm a newbie in DSP, so please excuse my stupid question: What serial digital audio format is normally used between ICs in...

Hello to everyone! I'm a newbie in DSP, so please excuse my stupid question: What serial digital audio format is normally used between ICs in a circuit? Is it sort of PCM or S/PDIF or AES? or just right- or left- justfied serial signal? Many thanx in advance for your answers! KMT


How to compare two audio clips for similarity?

Started by Bjarke in comp.dsp15 years ago 8 replies

Hi DSP experts! I have a question that i hope some of you can help me with. ;) What i want to is: given two audio clips, calculate a score...

Hi DSP experts! I have a question that i hope some of you can help me with. ;) What i want to is: given two audio clips, calculate a score for how similar they are. (how similar they sound) I assume i have to apply the Fourier transformation on the two clips, and somehow analyze the two frames (for example by comparing peaks) to see how similar they are. How should i do this? I w...


audio DSP SIG in Seattle

Started by Pion in comp.dsp12 years ago

I am wondering if there is any audio DSP special interest group (SIG) in Seattle. Any pointer is appreciated. Thanks in advance for your...

I am wondering if there is any audio DSP special interest group (SIG) in Seattle. Any pointer is appreciated. Thanks in advance for your help.


Audio pattern matching

Started by Nadav in comp.dsp16 years ago

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio...

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio data ( hence, search ), This was achieved by extracting the features ( FFT, Mel-Scale & MFCC ) for the template and the searched/sampled content, and then, checking their correlation. The problem: ******************* The correlation algorithm I use c...


Audio pattern matching

Started by Nadav in comp.dsp16 years ago

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio...

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio data ( hence, search ), This was achieved by extracting the features ( FFT, Mel-Scale & MFCC ) for the template and the searched/sampled content, and then, checking their correlation. The problem: ******************* The correlation algorithm I use c...


Audio pattern matching

Started by Nadav in comp.dsp16 years ago 7 replies

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio...

Hi, Introduction: ******************** I have created an application that knows to match a collection wavelet patterns to sampled audio data ( hence, search ), This was achieved by extracting the features ( FFT, Mel-Scale & MFCC ) for the template and the searched/sampled content, and then, checking their correlation. The problem: ******************* The correlation algorithm I use c...


BiQuad frequency response for visualisation

Started by jungledmnc in comp.dsp14 years ago 14 replies

Hi there, I'm trying to make a simple parametrical equalizer using the Audio-eq-cookbook (like everyone else :-)). I use it on audio signal...

Hi there, I'm trying to make a simple parametrical equalizer using the Audio-eq-cookbook (like everyone else :-)). I use it on audio signal and need to visualise resulting frequency response. E.g. peak filter should be painted as a hat-style curve. The problem is, that when I use the attached transport function H(z) the result is pretty different. It seems, that it modifies even frequencies it sh...


How to compare two audio clips for similarity?

Started by Bjarke in comp.dsp15 years ago

Hi DSP experts! I have a question that i hope some of you can help me with. ;) What i want to is: given two audio clips, calculate a score for...

Hi DSP experts! I have a question that i hope some of you can help me with. ;) What i want to is: given two audio clips, calculate a score for how similar they are. (how similar they sound) I assume i have to apply the Fourier transformation on the two clips, and somehow analyze the two frames (for example by comparing peaks) to see how similar they are. How should i do this? I wil...


Which DSP for audio ?

Started by Sam B in comp.dsp16 years ago 6 replies

Hi all ! Thank you for reading my post. I would like to do a custom DSP board for audio processing. I also would like to put the release...

Hi all ! Thank you for reading my post. I would like to do a custom DSP board for audio processing. I also would like to put the release under GPL license, so I'd like to find a DSP for which gcc has been ported. I first wanted to use a SHARC 212xx ou 213xx, but g21 only supports 210xx. Then I saw TI C6272, but it seems that the c6x-gcc has not been targeted for c67x. Well, I ...


Audio Metering implementation

Started by moz in comp.dsp12 years ago 3 replies

Hi Everyone, I could need a little help today. I am currently implementing a software Audio Meter that visualizes the signal in dB. The...

Hi Everyone, I could need a little help today. I am currently implementing a software Audio Meter that visualizes the signal in dB. The signal is presented in form of a bar that fills up all the way to the top if the signal reaches 0dBFS and is empty when it is below or equal -60dBFS. The bar currently follows a linear approach, meaning that the pixel difference between each unit is the s...