snd_pcm_format_signed(9) [suse man page]

SND_PCM_FORMAT_SIGNE(9) 					      PCM API						   SND_PCM_FORMAT_SIGNE(9)

NAME

       snd_pcm_format_signed - Check the PCM format is signed linear

SYNOPSIS

       int snd_pcm_format_signed(snd_pcm_format_t format);

ARGUMENTS

       format
	   the format to check

DESCRIPTION

       Returns 1 if the given PCM format is signed linear, 0 if unsigned linear, and a negative error code for non-linear formats.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   SND_PCM_FORMAT_SIGNE(9)

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)