.timeStretch

Internal soundgen function called by <code>timeStretch</code>

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

.timeStretch function

<dl><dt>audio</dt>
<dd>a list returned by <code>readAudio</code></dd>
<dt>stretch</dt>
<dd>1 = no change, &gt;1 = longer, &lt;1 = shorter. Single value, vector,
or anchor format (see <code>soundgen</code>)</dd>
<dt>precision</dt>
<dd>the number of points used for estimating the duration of
output (more = better, but slower)</dd>
<dt>play</dt>
<dd>if TRUE, plays the synthesized sound using the default player on
your system. If character, passed to <code>play</code> as the name
of player to use, eg "aplay", "play", "vlc", etc. In case of errors, try
setting another default player for <code>play</code></dd></dl>

Arguments

Time stretch per sound — .timeStretch

<dl>

<dt>audio</dt>
<dd>a list returned by <code>readAudio</code></dd>


<dt>stretch</dt>
<dd>1 = no change, &gt;1 = longer, &lt;1 = shorter. Single value, vector,
or anchor format (see <code>soundgen</code>)</dd>


<dt>precision</dt>
<dd>the number of points used for estimating the duration of
output (more = better, but slower)</dd>


<dt>play</dt>
<dd>if TRUE, plays the synthesized sound using the default player on
your system. If character, passed to <code>play</code> as the name
of player to use, eg "aplay", "play", "vlc", etc. In case of errors, try
setting another default player for <code>play</code></dd>

</dl>

.timeStretch: Time stretch per sound

Description

Usage

Arguments