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Results tagged with lpc
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user 4346
2
votes
Accepted
AR Modeling: Why residual is white noise?
now if $\epsilon[n]$ was not white, we could do further LPC to make a good guess at $\epsilon[n]$ and make a better guess for $x[n]$, but if the coefficients $\epsilon[n]$ are optimal, then we can't make …
- 21.5k
4
votes
What is the need for prediction filter in PCM and DPCM?
this is what linear predictive coding (LPC) is at the most fundamental. …
- 21.5k
1
vote
Division by zero in Levinson–Durbin recursion?
of code from long ago:
/**********************************************************************
* *
* Levinson-Durbin Algorithm for LPC … values *
* *
* output: *
* a -> a[0] to a[n] LPC …
- 21.5k
1
vote
pitch extraction for speech
it's not "modern", but if done right, correlation methods are quite robust. i personally like Average Squared Difference Function (ASDF)
$$ Q_x[n_0,k] = \frac{1}{2L+1} \sum\limits_{n=n_0 - \lfloor k/ …
- 21.5k