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Signal Processing

Questions tagged [voice]

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113 questions
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0 answers
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I have absolutely no experience with this field but have been trying to analyze some audio files where someone broke into my house (long explanation follows but can be skipped; more included because ...
Katie's user avatar
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0 votes
1 answer
42 views

I only recently learned of the use of the vocoder as a vocal signal compression technique. However, I'm having trouble understanding how it actually reduces the size of whatever goes in. If I think of ...
Vijay Shastri's user avatar
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1 vote
0 answers
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I have some audio files affected by an issue during recording, apparently chunks of data were duplicated, like this. Doing a search I realised that I already asked about this, but I have got a very ...
Bob's user avatar
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If I've got a bunch of short .wav files, 16 bit linear pcm, and an incoming stream of audio that's been run through a voice codec (g.722, g.711, or others) and then converted back to pcm, what's the ...
Matt DiMeo's user avatar
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2 votes
2 answers
506 views

Let me preface that I am new to audio processing and audio analysis ;) (I asked the same question on reddit, I wanted to increase it's reach)) I am trying to classify specific events (like a gong or ...
Hurricane's user avatar
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1 vote
1 answer
823 views

I want to generate human voice using fft. For this, I analyzed a fft of my mother saying "e" and the result was that the points are in a normal distribution. Then I created a fft using a ...
Eleno's user avatar
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0 votes
1 answer
1k views

I am trying to use (not implement VAD algorithm) voice activity detection to get timestamps for a given audio but facing hard time doing so. What I am trying to achieve ? Find an offline library for ...
Gangadhar Jannu's user avatar
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4 votes
1 answer
9k views

Isolation of different human voices from audio Separate two voices from a speech signal Several years ago it was hard to extract voice from music and almost impossible to separate two human voices ...
Schezuk's user avatar
  • 143
3 votes
0 answers
172 views

I have a signal which has human speech, background voice and noise as it can be seen in below figure. I have calculated its power spectral density (PSD) using many different methods which can be seen ...
sdkmlcngz's user avatar
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1 answer
228 views

If I record the voice of a man and a woman, what are the main differences I get in the various spectra and harmonics in Fourier analysis?
Luca Leone's user avatar
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0 answers
44 views

Taking as an example that I want to record my voice. How does it appear in the frequency spectrum? Can I also view it on other spectra?
Luca Leone's user avatar
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1 vote
1 answer
68 views

What kind of audio signal features/properties are appropriate for signal similarity measurement invariant to imitation? Basically I would like to do the following: Having a template (e.g. a spoken ...
Micka's user avatar
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1 vote
1 answer
66 views

I have been reading about dialup modems, but one thing I cannot seem to find out about is how implementers determined optimal transmit power/volume. Is this part of the echo cancelation framework? The ...
Liam Kelly's user avatar
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3 votes
0 answers
488 views

I've recently came across two programs - Morphvox, VCSdiamond that are able to preform pitch shift, but also timbre shift. As far as I know the timbre is nothing but the amplitude of the harmonics in ...
Dannynis's user avatar
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35 views

I have a 90min audio recording of a lecture using a handheld recorder. Since the recorder was in the shirt pocket of the speaker, I can clearly hear that the their voice is much louder than the ...
pitosalas's user avatar
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