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I implemented an LMS code in matlab for removing the noise present in the speech signal and the noise is getting removed but only before and after the speech segment. ie the noise added over the speech remains the same. I used the following algorithm
1) noise estimation using VAD. I found the...
How to check if a signal is stationary in matlab? I have a speech signal and I want to check if it is stationary in a duration of 40ms. Could someone please help me out with the code.
Could someone please explain me this line in the code. This is used to calculate the number of silence segments in the degraded speech signal. The code is a part of boll spectral subtraction method. I have attached the whole code below.
NIS=fix((IS*fs-W)/(SP*W) +1); %number of initial...
hey thank you for your answer i am now able to relate autocorrelation with spectral estimation. I am kind of new to speech processing techniques so sorry in advance for my naive question in advance but by any chance do we have anything as correlated noise? I ask this because some of the...
I checked out a method for spectral estimation that estimates the spectrum of speech from degraded speech (speech+noise) input which involves autocorrelation. But i fail to understand how autocorrelation would achieve this. Wasn't autocorrelation meant for checking out the similarities between...
what does pcb theiving actually mean? as in from what i have read uptil now it is meant for copper balance!!! but how does this help and why is this needed?why would we want an extra fabrication step and increase the cost of manufacturing? and how does this help to increase the yield of...
I am 89v51rd2 microcontroller for my project but the problem with it is that the program loaded into it is not executed properly. It works
sometimes and sometimes it does not.Sometimes the instructions are executed partially ie. i get the output for some input conditions only. Why does the...
The components placed are of the same value so that possibility is ruled out. Even since the MOSFET heated up so much we changed the mosfets on the board and checked but the same problem arised. we used proper heat sinking . The excessive current passing through the MOSFET because of which it...
I am using a mosfet IRFZ48 for my motor driver ckt. The specifications of the mosfets and the requirements for the motors match, but the mosfets get heated up. Also, my seniors who originally designed the ckt for their project faced no such problems at that:roll:time. What could possibly be the...
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