auconvert(1) [opendarwin man page]

AUCONVERT(1)						      General Commands Manual						      AUCONVERT(1)

NAME

       auconvert - perform various conversion operations on sound files

SYNOPSIS

       auconvert  [-file  <format>]  [-data  <format>] [-rate <sample rate>] [-comment <comment>] [-raw <data format> <num tracks>] [-volume <per-
       cent>|`max'] [-?] [<input file>] [<output file>]

DESCRIPTION

       The auconvert program can be used to convert from one sound file format, and/or data format to another.	It can also  change  the  comment,
       sampling  rate,	and volume of a sound file.  Finally, auconvert can be used to convert raw audio data into a sound file.  If no input file
       name is given, standard input will be used.  If no output file name is given, the original file will be replaced by the converted  file	or
       standard out will be used if the input is coming from standard input.

OPTIONS

       The following options may be used with auconvert:

       -file format
	       The output file format.	The -? option will display a list of valid file formats.

       -data format
	       The  output  data  format.   The  -? option will display a list of valid data formats.  Note that each file format may only support
	       selected data formats.

       -rate sample rate
	       The output sampling rate (in hertz).

       -comment comment
	       The comment to be stored in the output file.

       -volume <percent>|`max'
	       The volume option can be used in two ways.  If the argument is a percentage, the output file volume will be converted to the speci-
	       fied  percentage of the input volume.  If the argument is the string `max', the output file volume will be converted to its maximum
	       level.

       -raw <data format> <num tracks>
	       This option is used to convert raw audio data into a sound file.  <data format> is the data format of the raw data.   <num  tracks>
	       specifies the number of tracks in the raw data.	You must also use the -file and -rate options when converting raw data.

       -?      Displays a usage message and a list of supported file and data formats.

SEE ALSO

       nas(1), auedit(1)

COPYRIGHT

       Copyright 1993, 1994 Network Computing Devices, Inc.

AUTHOR

       Greg Renda, Network Computing Devices, Inc.

								       1.9.3							      AUCONVERT(1)

convert(1)						      General Commands Manual							convert(1)

NAME

       convert - convert an audio file

SYNOPSIS

       [source_file] [target_file] [] []
	      [] [] []
	      [] []

DESCRIPTION

       This  command  converts	audio  files  from  one supported file format, data format, sampling rate, and number of channels to another.  The
       unconverted file is retained as a source file.

       are the file formats for the source and destination files.
	      Each format can be one of these:

		 Sun file format
		 NeXT file format
		 Microsoft RIFF Waveform file format
		 MuLaw format
		 ALaw
		 linear 16-bit format
		 offset (unsigned) linear 8-bit format
		 linear 8-bit format

	      If you omit uses the header or filename extension in the source file.  You can omit if you supply a filename extension for the  des-
	      tination file.

       is the data type for the destination files.
	      data_type can be one of these:

		 MuLaw
		 ALaw
		 linear 16-bit
		 offset (unsigned) linear 8-bit data
		 linear 8-bit data

	      If you omit uses an appropriate data type, normally the data type of the source file.

       are the number of samples per second for the source and
	      destination  file.  Typical sampling rates range from 8 to 11k (for voice quality) to 44,100 (for CD quality).  You can use to indi-
	      cate thousands.  For example, means 8,000 samples per second.

	      If you omit uses a rate defined by the source file header or its filename extension.  For a raw file with  no  extension,  8,000	is
	      used.   By playing the file, you can determine if 8,000 samples is too fast or too slow.

	      If  you  omit  uses  a  sampling	rate appropriate for the destination file format; if possible, it matches the sampling rate of the
	      source file.

       are the number of channels in the source and destination files.
	      Use for mono; for stereo.  If is omitted, uses the information in the header; for raw data files, it uses mono.

	      If is omitted, matches what was used for the source file (through the header or option); for raw data files, it uses mono.

EXAMPLES

       Convert a raw data file to a headered file.

       Convert a raw data file to a headered file when the source has no extension, was sampled at 11,025 per second, and has stereo data.

       To save disk space, convert an audio file with CD quality sound to voice quality sound.

AUTHOR

       was developed by HP.

       Sun is a trademark of Sun MicroSystems, Inc.

       NeXT is a trademark of NeXT Computers, Inc.

       Microsoft is a trademark of Microsoft Corporation.

SEE ALSO

       audio(5), asecure(1M), aserver(1M), attributes(1), send_sound(1).

																	convert(1)