Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

sndfile-convert(1)


NAME

     sndfile-convert --- convert sound files from one format to another

SYNOPSIS

     sndfile-convert [-override-sample-rate=rate] [-endian=little | big | cpu]
                 [-normalize] [encoding] input output

DESCRIPTION

     sndfile-convert converts sound files from one audio format to another.
     The output file is overwritten it it already exists.

   Formats
     The format of the output file is determined by the filename extension.
     The following file formats are currently recognized:

     wav    WAV (Microsoft)
     aif    AIFF (Apple/SGI)
     au     AU (Sun/NeXT)
     snd    AU (Sun/NeXT)
     raw    RAW (header-less)
     gsm    RAW (header-less)
     vox    RAW (header-less)
     paf    PAF (Ensoniq PARIS, big-endian)
     fap    PAF (Ensoniq PARIS, little-endian)
     svx    IFF (Amiga IFF/SVX8/SV16)
     nist   SPHERE (NIST SPeech HEader Resources)
     sph    SPHERE (NIST SPeech HEader Resources)
     voc    VOC (Creative Labs)
     ircam  SF (Berkeley/IRCAM/CARL)
     sf     SF (Berkeley/IRCAM/CARL)
     w64    W64 (SoundFoundry WAVE 64)
     mat    MAT4 (GNU Octave 2.0 / Matlab 4.2)
     mat4   MAT4 (GNU Octave 2.0 / Matlab 4.2)
     mat5   MAT5 (GNU Octave 2.1 / Matlab 5.0)
     pvf    PVF (Portable Voice Format)
     xi     XI (FastTracker 2)
     htk    HTK (HMM Tool Kit)
     sds    SDS (Midi Sample Dump Standard)
     avr    AVR (Audio Visual Research)
     wavex  WAVEX (MS WAVE with WAVEFORMATEX)
     sd2    SD2 (Sound Designer II)
     flac   FLAC (FLAC Lossless Audio Codec)
     caf    CAF (Apple Core Audio File)
     wve    WVE (Psion Series 3)
     prc    WVE (Psion Series 3)
     ogg    OGG (OGG Container format)
     oga    OGG (OGG Container format)
     mpc    MPC (Akai MPC 2k)
     rf64   RF64 (RIFF 64)

   Options
     The following options are recoginzed:

     -override-sample-rate=rate  Make the input use sample rate of rate Hz.
     -endian=little              Make the output file use little endian data.
     -endian=big                 Make the output file use big endian data.
     -endian=cpu                 Make the output file use CPU endianness.
     -normalize                  Normalize the audio data in the output file.

   Encodings
     The optional encoding parameter allows setting of the data encoding for
     the output file.  The following encodings are currently supported:

     -pcms8       signed 8 bit pcm
     -pcmu8       unsigned 8 bit pcm
     -pcm16       16 bit pcm
     -pcm24       24 bit pcm
     -pcm32       32 bit pcm
     -float32     32 bit floating point
     -ulaw        ULAW
     -alaw        ALAW
     -ima-adpcm   IMA ADPCM (WAV only)
     -ms-adpcm    MS ADPCM (WAV only)
     -gsm610      GSM6.10 (WAV only)
     -dwvw12      12 bit DWVW (AIFF only)
     -dwvw16      16 bit DWVW (AIFF only)
     -dwvw24      24 bit DWVW (AIFF only)
     -vorbis      Vorbis (OGG only)

     If no encoding is specified for the output file, sndfile-convert will try
     to use the encoding of the input file.  This will not always work as most
     container formats (e.g. WAV, AIFF etc) only support a small subset of
     encodings (e.g. 16 bit PCM, a-law, Vorbis etc).

EXIT STATUS

     The sndfile-convert utility exits 0 on success, and >0 if an error
     occurs.

SEE ALSO

       http://www.mega-nerd.com/libsndfile/

AUTHORS

     Erik de Castro Lopo erikd@mega-nerd.com.



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner