Description Usage Arguments Details Value Author(s) References Examples

Calculate the deltas (derivatives) of a sequence of features using a w-point window with a simple linear slope.

1 | ```
deltas(x, w = 9)
``` |

`x` |
Matrix of features. Every column represents one time frame. Each row is filtered separately. |

`w` |
Window width (usually odd). |

This function mirrors the delta calculation performed in HTKs ‘feacalc’.

Returns a matrix of the delta features (one column per frame).

Sebastian Krey [email protected]

Daniel P. W. Ellis: http://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/

1 2 3 |

tuneR documentation built on July 10, 2018, 1:02 a.m.

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