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GenTone(1audio) GenTone(1audio)


GenTone [options] AFile


Generate an audio file containing a sine wave

This program generates a sine wave of a given amplitude and phase. The samples of the sine wave are written to an audio file. Options are available to specify the number of samples, the sampling frequency and the data format of the output file.


Output file name: AFile:
 
Specifying "-" as the output file indicates that output is to be written to standard output. If the output file type is not explicitly given (-F option), the extension of the output file name is used to determine the file type.
  ".au"   - AU audio file
  ".wav"  - WAVE file
  ".aif"  - AIFF sound file
  ".afc"  - AIFF-C sound file
  ".raw"  - Headerless file (native byte order)
  ".txt"  - Headerless file (text data)
-f FREQ, --frequency=FREQ
 
Frequency of the sine wave in Hertz, default 1000. -r SDEV, --rms=SDEV
 
Root-mean-square value of the sinusoid in normalized units, default 0.03. The rms value can be given as a real number (e.g., "0.03") or as a ratio (e.g., "983.04/32768"). -a AMPL, --amplitude_max=AMPL
 
Maximum amplitude of the sine wave in normalized units. The amplitude of the sine wave is specified by either the rms value or the maximum amplitude. The amplitude can be given as a real number (e.g., "0.0424") or as a ratio (e.g., "1390.2/32768"). -p PHASE, --phase PHASE
 
Initial phase of the sinusoid (cosine) in degrees, default 0. Zero phase gives a cosine, -90 degrees gives a sine. -n NSAMPLE, --number_samples=NSAMPLE
 
Number of output samples to be generated. -s SFREQ, --srate=SFREQ
 
Sampling frequency for the output audio file, default 8000. -F FTYPE, --file_type=FTYPE
 
Output file type. If this option is not specified, the file type is determined by the output file name extension.
  "AU" or "au"             - AU audio file
  "WAVE" or "wave"         - WAVE file
  "WAVE-NOEX" or "wave-noex" - WAVE file (no extensible data)
  "AIFF-C" "aiff-c"        - AIFF-C sound file
  "AIFF" or "aiff"         - AIFF sound file
  "noheader" or "noheader_native" - Headerless file (native byte
                             order)
  "noheader_swap"          - Headerless file (byte swapped)
  "noheader_big-endian"    - Headerless file (big-endian byte
                             order)
  "noheader_little-endian" - Headerless file (little-endian byte
                             order)
-D DFORMAT, --data_format=DFORMAT
 
Data format for the output file, default integer16
  "mu-law8"   - 8-bit mu-law data
  "A-law8"    - 8-bit A-law data
  "unsigned8" - offset-binary 8-bit integer data
  "integer8"  - two's-complement 8-bit integer data
  "integer16" - two's-complement 16-bit integer data
  "integer24" - two's-complement 24-bit integer data
  "integer32" - two's-complement 32-bit integer data
  "float32"   - 32-bit floating-point data
  "float64"   - 64-bit floating-point data
  "text"      - text data
The data formats available depend on the output file type. AU audio files:
  mu-law, A-law, 8/16/24/32-bit integer, 32/64-bit float
WAVE files:
  mu-law, A-law, offset-binary 8-bit integer, 16/24/32-bit integer,
  32/64-bit float
AIFF-C sound files:
  mu-law, A-law, 8/16/24/32-bit integer, 32/64-bit float
AIFF sound files:
  8/16/24/32-bit integer
Headerless files:
  all data formats
-I INFO, --info=INFO
 
Audio file information string for the output file. -h, --help
 
Print a list of options and exit. -v, --version
 
Print the version number and exit.
By default, the output file contains a standard audio file information string.
  Standard Audio File Information:
     date: 1994-01-25 19:19:39 UTC    date
     program: GenTone                 program name
This information can be changed with the header information string which is specified as one of the command line options. Structured information records should adhere to the above format with a named field terminated by a colon, followed by numeric data or text. Comments can follow as unstructured information.
  Record delimiter: Newline character or the two character escape
      sequence "\" + "n".
  Line delimiter: Within records, lines are delimiteded by a carriage
      control character, the two character escape sequence "\" + "r",
      or the two character sequence "\" + newline.
If the information string starts with a record delimiter, the header information string is appended to the standard header information. If not, the user supplied header information string appears alone.

P. Kabal / v5r0a 2003-11-06

AFsp
TSP (audio)

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