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Dear all,
I am doing my master's in signal processing. I am currently doing research in audio and image processing. I have been processing over huge spectrogram images. I am facing the problem of noise reduction.
Currently, we have been using Wiener Filter technique, convolution stuffs and...
I m using matlab only... I have 120 vectors corresponding to 120 spectrograms of size 1 X 70. Instead of taking all the vectors and copying it in notepad and then putting those in matlab and then computing is tedious na.. I want an alternative solution if possible. Since I have to compute it...
Dear all,
I have a vector of 1 X 70 for a spectrogram chunk containing some values. In this way, I have obtained a vector for other 120 chunks of size 1 X 70.
"If the vectors are combined, the size will be 120 X 70.
I need to combine all the 120 chunks as a single vector 1 X 70 to get the...
Dear all,
I am doing research in audio processing. I have been asked to count the number of rain drops in a given audio recording. I need your precious help for the following 2 questions
1) While I was obtaining the spectrograms for the individual chunks that I created, I am getting the...
Hi all,
I just started working in audio processing.
I am given an audio file of length 20 min. I want to divide it into 10secs chunks of 120 files. How do I do that?
Also, I have to obtain spectrograms for each chunk that is generated and apply wiener filtering as well to remove the noise for...
Should we really need BSS for this case?. If we have known examples of rain signals, we can use a supervised learning algorithm. Otherwise, if we know the spectrum of rain signals, you can design a suitable algorithm for that case. BSS is when we have lot of (independent) sources overlapping in...
Thanks again for your useful suggestions.
While I was measuring the rainfall, I wanted to set a threshold limit so that I could find the amount of rain more distinctively. But what i require is the exact threshold limit so that some of the vertical lines that dont even represent rain can be...
Thats was a wonderful idea klystron..
i have a question though
So we are positioning this microphone 1 to focus on the bird sounds, My question is what if the birds don't turn up the whole day at all , I guess lot of information would be lost right?. And also what if the birds sit adjacent to...
thanks klystron ...
I could get lot of useful info from that.
Actually I would like to know what are the ways to eliminate the rainfall ( Considering that I have counted the number of rainfall that has occurred in this chunk I have shown) in order to get the noise free data. Do you have...
Hi all,
I am working in Image and audio processing.
I read the audio file (WAV) that is of 20 min and divided the original audio file into 10 second ‘chunks’ of 120 files. Then I computed a spectrogram for each chunk, and obtained 120 spectrograms and made it into a bmp file. I used wiener...
hello all,
Can someone assist me with the sensory feedback for a person using a prosthetic limb to grab objects or do stuffs like that.?
I also want to know how we could optimize BMI(brain machine interface) performance under normal conditions.
Thanks in advance,
Sharath
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