Rank: 1323 based on 95 downloads (last 30 days) and 7 files submitted
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Professional Interests:
Signal processing, Audio Processing, Auditory Evoked Potentials, Psychoacoustics

 

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Files Posted by Nike View all
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05 May 2014 consonant confusion matrix Generates a confusion matrix for consonant identification task Author: Nike consonant identificat..., consonant confusion, confusion matrix, consonant confusion m..., consonant confusion m..., audiologist 9 0
14 Jan 2014 Screenshot signal to noise ratio estimation for VEMP waveforms signal to noise ratio estimation for VEMP waveforms Author: Nike signal to noise ratio, vestibular evoked myo..., vemp, snr of vemp 12 1
04 Sep 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike signal to noise ratio, speech mixing, signal processing, speech and hearing, audiology, speech perception 26 8
  • 1.0
1.0 | 2 ratings
26 Jun 2013 Program to analyze F0 of speech ABR in Matlab This code can be used to spectrally analyze a an ABR ASCII waveform by windowing and zero padding. Author: Nike speech abr, spectral analysis, audiology, electrophysiology, ffr 13 2
04 Oct 2012 Generate stimuli for Auditory Gap detection test This Code is to generate Stimuli to be used for Auditory gap Detection Test Author: Nike gap detection test st..., auditory gap detectio..., gdt stimuli, audiology, psychoacoustics 14 1
Comments and Ratings by Nike View all
Updated File Comments Rating
14 Jan 2014 signal to noise ratio estimation for VEMP waveforms signal to noise ratio estimation for VEMP waveforms Author: Nike

If you happen to use this submission please cite it as follows.

Gnanateja, G. N. (2014). signal to noise ratio estimation for VEMP waveforms. http://www.mathworks.com/matlabcentral/fileexchange/45010-signal-to-noise-ratio-estimation-for-vemp-waveforms, Matlab Central File Exchange. Retrieved on dd-mm-yy.

Don't forget to rate the submission

01 Sep 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike

Hi Shyam,

do update the rating on the file if you find the program useful

31 Aug 2013 Second Order Amplitude Modulated Noise Generation Second order amplitude modulated noise as described by Lorenzi(2001) Author: Nike

This submission was not intended to modulate a wav file with another wav file. This was merely programmed to generate a second order modulated signal for psychoacoustical experiments.

If you want to modulate a signal using a noise file

use the following equation:

modulatedsignal = (1+noise).*signal;

P.S.: If you do not know how to implement the above equation in matlab, put in a reply and I'll walk you through. Also, it would help to know which stimuli you intend to use

Regards,

Nike

31 Aug 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike

Hi Shyam,
I am glad that you downloaded my submission and put it to use.

If You want an SNR of 0 dB then just don't edit anything in the code anything. Just run the code and enter the SNR when you are asked.

The dbs is just an attenuation factor for the speech signal,I have fixed it at -10dB. The maximum amplitude which can be provided in in a wav file written in matlab is 0 dB.

So if we need to have SNR of -15 dB with the signal attenuation at -10 dB, then the noise needs to be at an attenuation of +5dB which is not possible. That is the reason why, you need to change the dbs in case you need SNRs lower than -10dB.

the values which you pointed out were typos, I meant -15 an -12 dB.

P.S: If you do not know how to run matlab codes, please put in a reply , I'll walk you through..

Regards

Nike

27 Jun 2013 Program to analyze F0 of speech ABR in Matlab This code can be used to spectrally analyze a an ABR ASCII waveform by windowing and zero padding. Author: Nike

If You happen to use this code, plezse cite the code as below.

Gnanateja G. N. (2013). Program to analyze F0 of Speech ABR in Matlab. http://www.mathworks.com/matlabcentral/fileexchange/42373. Matlab Central File Exhange. Retrieved on dd-mm-yy.

Comments and Ratings on Nike's Files View all
Updated File Comment by Comments Rating
14 Jan 2014 signal to noise ratio estimation for VEMP waveforms signal to noise ratio estimation for VEMP waveforms Author: Nike Nike

If you happen to use this submission please cite it as follows.

Gnanateja, G. N. (2014). signal to noise ratio estimation for VEMP waveforms. http://www.mathworks.com/matlabcentral/fileexchange/45010-signal-to-noise-ratio-estimation-for-vemp-waveforms, Matlab Central File Exchange. Retrieved on dd-mm-yy.

Don't forget to rate the submission

01 Sep 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike Nike

Hi Shyam,

do update the rating on the file if you find the program useful

31 Aug 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike shyam

very glad that you have replied to my query this quickly

we are been using your submission in evaluation of performance of Voice activity detection algorithms

by the way i have some doubts it seems you are a expert in this field :)

ok as you said i will use your submission

do you have any idea where we can get a corpus of indian speech data base and some subway noise,resturant noise etc

many countries like japan,turkey,uk,us have their database poor india has got nothing like that it i think india should also have the database

any wayz i have got some subway and resturant noises can i use your submission in mixing them with my speech file ? is that feasible

Sampling Rate:8Khz,16bit signed sample

31 Aug 2013 Second Order Amplitude Modulated Noise Generation Second order amplitude modulated noise as described by Lorenzi(2001) Author: Nike Nike

This submission was not intended to modulate a wav file with another wav file. This was merely programmed to generate a second order modulated signal for psychoacoustical experiments.

If you want to modulate a signal using a noise file

use the following equation:

modulatedsignal = (1+noise).*signal;

P.S.: If you do not know how to implement the above equation in matlab, put in a reply and I'll walk you through. Also, it would help to know which stimuli you intend to use

Regards,

Nike

31 Aug 2013 Speech in noise mixing, signal to noise ratio a simple function to mix a speech signal with a desired noise desired signal to noise ratios Author: Nike Nike

Hi Shyam,
I am glad that you downloaded my submission and put it to use.

If You want an SNR of 0 dB then just don't edit anything in the code anything. Just run the code and enter the SNR when you are asked.

The dbs is just an attenuation factor for the speech signal,I have fixed it at -10dB. The maximum amplitude which can be provided in in a wav file written in matlab is 0 dB.

So if we need to have SNR of -15 dB with the signal attenuation at -10 dB, then the noise needs to be at an attenuation of +5dB which is not possible. That is the reason why, you need to change the dbs in case you need SNRs lower than -10dB.

the values which you pointed out were typos, I meant -15 an -12 dB.

P.S: If you do not know how to run matlab codes, please put in a reply , I'll walk you through..

Regards

Nike

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