dPhase

Internal soundgen function called by pitchShift().

internal

Performs parametric synthesis of sounds with harmonic and noise
components such as animal vocalizations or human voice. Also offers tools
for audio manipulation and acoustic analysis, including pitch tracking,
spectral analysis, audio segmentation, pitch and formant shifting, etc.
Includes four interactive web apps for synthesizing and annotating audio,
manually correcting pitch contours, and measuring formant frequencies.
Reference: Anikin (2019) <doi:10.3758/s13428-018-1095-7>.

Andrey Anikin

soundgen

Sound Synthesis and Acoustic Analysis

dPhase function

<dl><dt>phase, magn</dt>
<dd>phase and magnitude of a spectrogram</dd>
<dt>step_s</dt>
<dd>step in s</dd>
<dt>freqs</dt>
<dd>a vector of central frequencies per bin</dd>
<dt>alpha</dt>
<dd>stretch factor</dd>
<dt>propagation</dt>
<dd>the method for propagating phase: "time" = horizontal
propagation (default), "adaptive" = an experimental implementation of
"vocoder done right" (Prusa &amp; Holighaus 2017)</dd>
<dt>tol</dt>
<dd>tolerance of "vocoder done right" algorithm</dd>
<dt>nr, nc</dt>
<dd>dimensions of input spectrogram</dd></dl>

Arguments

Phase derivatives — dPhase

<dl>

<dt>phase, magn</dt>
<dd>phase and magnitude of a spectrogram</dd>


<dt>step_s</dt>
<dd>step in s</dd>


<dt>freqs</dt>
<dd>a vector of central frequencies per bin</dd>


<dt>alpha</dt>
<dd>stretch factor</dd>


<dt>propagation</dt>
<dd>the method for propagating phase: "time" = horizontal
propagation (default), "adaptive" = an experimental implementation of
"vocoder done right" (Prusa &amp; Holighaus 2017)</dd>


<dt>tol</dt>
<dd>tolerance of "vocoder done right" algorithm</dd>


<dt>nr, nc</dt>
<dd>dimensions of input spectrogram</dd>

</dl>

dPhase: Phase derivatives

Description

Usage

Arguments