SNDFILE-GENERATE-CHIRP(1) General Commands Manual SNDFILE-GENERATE-CHIRP(1)NAME
sndfile-generate-chirp - generate a sound file containing a chirp
SYNOPSIS
sndfile-generate-chirp [options] <sample rate> <length in seconds> <sound file>
DESCRIPTION
sndfile-generate-chirp generates a sound file containing a sine wave that sweeps from a low starting frequency to a higher ending frequency
(ie a chirp). The file is written using libsndfile (http://www.mega-nerd.com/libsndfile/).
The parameters allows the start and end sine wave frequencies to be set as well as specifying the shape of the sweep (ie linear, quadratic
or logarithmic). Run "sndfile-generate-chirp --help" for more information.
The format of the output file is determined by the filename extension of the output file.
AUTHOR
This manual page was written by Erik de Castro Lopo <erikd@mega-nerd.com>.
December 14, 2009 SNDFILE-GENERATE-CHIRP(1)
Check Out this Related Man Page
mlib_SignalSineWaveInit_F32(3MLIB) mediaLib Library Functions mlib_SignalSineWaveInit_F32(3MLIB)NAME
mlib_SignalSineWaveInit_F32 - sine wave generation
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_SignalSineWaveInit_F32(void **state, mlib_f32 mag, mlib_f32 freq, mlib_f32 phase);
DESCRIPTION
The mlib_SignalSineWaveInit_F32() function allocates memory for an internal state structure and converts the parameters of the wave to an
internal representation.
PARAMETERS
The function takes the following arguments:
state Internal state structure.
mag Magnitude of sine wave to be generated, in Q15 format.
freq Angular frequency of the sine wave to be generated, measured in radians per sample.
phase Start phase of the sine wave to be generated, measured in radians.
RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO attributes(5)SunOS 5.10 9 Nov 2004 mlib_SignalSineWaveInit_F32(3MLIB)
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