deltas: Calculate delta features
In tuneR: Analysis of Music and Speech
deltas R Documentation
Calculate delta features
Description
Calculate the deltas (derivatives) of a sequence of features using a w-point
window with a simple linear slope.
Usage
deltas(x, w = 9)
Arguments
x
Matrix of features. Every column represents one time frame.
Each row is filtered separately.
w
Window width (usually odd).
Details
This function mirrors the delta calculation performed in HTKs ‘feacalc’.
Value
Returns a matrix of the delta features (one column per frame).
Author(s)
Sebastian Krey krey@statistik.tu-dortmund.de
References
Daniel P. W. Ellis: https://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/
Examples
testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
m <- melfcc(testsound, frames_in_rows=FALSE)
d <- deltas(m)
tuneR documentation built on May 29, 2024, 11:28 a.m.
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| deltas | R Documentation |
Calculate delta features
Description
Calculate the deltas (derivatives) of a sequence of features using a w-point window with a simple linear slope.
Usage
deltas(x, w = 9)
Arguments
x |
Matrix of features. Every column represents one time frame. Each row is filtered separately. |
w |
Window width (usually odd). |
Details
This function mirrors the delta calculation performed in HTKs ‘feacalc’.
Value
Returns a matrix of the delta features (one column per frame).
Author(s)
Sebastian Krey krey@statistik.tu-dortmund.de
References
Daniel P. W. Ellis: https://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/
Examples
testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
m <- melfcc(testsound, frames_in_rows=FALSE)
d <- deltas(m)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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