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2017/12/01

Raspberry Piで MP3対応の最新版の Sox Sound eXchange v14.4.2をビルドする方法 Raspberry Piで MP3対応の最新版の Sox Sound eXchange v14.4.2をビルドする方法

(ラズパイで Sox Sound eXchange MP3対応の最新版をコンパイルする方法)

Tags: [Raspberry Pi], [電子工作]






● Raspberry Pi 3 Model Bを遂に購入

 Raspberry Pi3 Model B RPI2 RPI3

 大人気の CPUボードの Raspberry Piに WiFiと Bluetoothが搭載されたモデルが新発売となりました。
 以前から Raspberry Pi 2を買おうかどうか迷っていましたが、Raspberry Pi 3 Model Bの発売を機に購入を決意してラズベリアンになる事にしました。

 ※ ラズパイの OS Raspbianはバージョンが上がる毎に過去の版と OSの内部の作りが変わり、過去に書かれた製作記事(例えば Raspbian Wheezyの時代の記事)がそのままではエラーが出たりして動かない事が有ります。
 ※ 当方のホームページのラズパイ記事は全て Raspberry Pi 3 Model Bと Raspbian Jessieの組み合わせで動作確認をしております。
(ただし、将来的に新しい Raspbian OSが出た場合に、当方の Raspbian Jessieを基にした内容がそのままでは動かない可能性が有ります。)
 ※ 2017/08/16から Raspbian OSは Raspbian Jessieから Raspbian Stretchに変わりました。

Download Raspbian for Raspberry Pi

ちなみに、歴代のバージョンと名称は
Debianコードネーム年月備考
Debian 9Stretch2017/08/16~
Debian 8Jessie2015~2016/02からラズパイ3対応
Debian 7Wheezy2013~2016
Debian 6.0Squeeze2011~2014
Debian GNU/Linux 5.0Lenny2009~2012


● SoXのソースコードからコンパイルしてバイナリを作成してみる(伏線)

 sudo apt-get install soxでインストールした Sound eXchangeにはライセンスの関係で MP3機能が有りません。
 MP3に対応した SoXは自前でコンパイルして作成する必要が有ります。

 オーディオ形式のファイル変換アプリの SoXをコンパイルします。

SoX - Sound eXchange
 SoX is a cross-platform (Windows, Linux, MacOS X, etc.) command line utility that can convert various formats of computer audio files in to other formats. It can also apply various effects to these sound files, and, as an added bonus, SoX can play and record audio files on most platforms.


sudo apt-get update
cd
mkdir SOX
cd SOX

# SoX - Sound eXchange
# http://sox.sourceforge.net/
wget https://jaist.dl.sourceforge.net/project/sox/sox/14.4.2/sox-14.4.2.tar.bz2
tar xvf sox-14.4.2.tar.bz2

# MAD: MPEG Audio Decoder
# https://www.underbit.com/products/mad
wget https://jaist.dl.sourceforge.net/project/mad/libmad/0.15.1b/libmad-0.15.1b.tar.gz
tar xvf libmad-0.15.1b.tar.gz

# FLAC - Free Lossless Audio Codec
# http://flac.sourceforge.net
wget https://ftp.osuosl.org/pub/xiph/releases/flac/flac-1.3.2.tar.xz
tar xvf flac-1.3.2.tar.xz

# Vorbis.com - Ogg Vorbis
# http://www.vorbis.com
wget http://downloads.xiph.org/releases/ogg/libogg-1.3.3.tar.xz
tar xvf libogg-1.3.3.tar.xz
wget http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.5.tar.xz
tar xvf libvorbis-1.3.5.tar.xz

# Opus Interactive Audio Codec
# http://www.opus-codec.org/comparison/
# wget https://archive.mozilla.org/pub/opus/opus-1.2.1.tar.gz
# tar xvf opus-1.2.1.tar.gz

# Sound eXchange SoXを MP3に対応させる
# The LAME Project - Hhigh quality MP3 encoder
# http://lame.sourceforge.net
wget https://jaist.dl.sourceforge.net/project/lame/lame/3.100/lame-3.100.tar.gz
tar xvf lame-3.100.tar.gz
#-----------------------
mkdir tmp
SOX_CPPFLAGS=""
SOX_LDFLAGS=""
SOX_WITH=""

mkdir tmp/libmad
cd libmad-0.15.1b
# gcc: error: unrecognized command line option '-fforce-mem'; did you mean '-fforce-addr'?
# $ grep "\-fforce-mem" configure
#             optimize="$optimize -fforce-mem"
sed -i '/-fforce-mem/d' configure
./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/libmad)
make && make install

SOX_CPPFLAGS="$SOX_CPPFLAGS -I$(realpath ../tmp/libmad/include)"
SOX_LDFLAGS="$SOX_LDFLAGS -L$(realpath ../tmp/libmad/lib)"
SOX_WITH="$SOX_WITH --with-mad"
cd ..

#-----------------------
mkdir tmp/flac
cd flac-1.3.2
./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/flac)
make && make install

SOX_CPPFLAGS="$SOX_CPPFLAGS -I$(realpath ../tmp/flac/include)"
SOX_LDFLAGS="$SOX_LDFLAGS -L$(realpath ../tmp/flac/lib)"
SOX_WITH="$SOX_WITH --with-flac"
cd ..

#-----------------------
mkdir tmp/lame
cd lame-3.100
./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/lame)
make && make install

SOX_CPPFLAGS="$SOX_CPPFLAGS -I$(realpath ../tmp/lame/include)"
SOX_LDFLAGS="$SOX_LDFLAGS -L$(realpath ../tmp/lame/lib)"
SOX_WITH="$SOX_WITH --with-lame"
cd ..

#-----------------------
# mkdir tmp/opus
# cd opus-1.2.1
# ./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/opus)
# make && make install
# cd ..

# wget https://archive.mozilla.org/pub/opus/opus-tools-0.1.10.tar.gz
# tar xvf opus-tools-0.1.10.tar.gz
# cd opus-tools-0.1.10
# ./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/opus)


#-----------------------
mkdir tmp/libogg
cd libogg-1.3.3
./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/libogg)
make && make install

SOX_CPPFLAGS="$SOX_CPPFLAGS -I$(realpath ../tmp/libogg/include)"
SOX_LDFLAGS="$SOX_LDFLAGS -L$(realpath ../tmp/libogg/lib)"
cd ..

mkdir tmp/libvorbis
cd libvorbis-1.3.5

CPPFLAGS="-I$(realpath ../tmp/libogg/include)" \
LDFLAGS="-L$(realpath ../tmp/libogg/lib)" \
./configure --enable-static --disable-shared --prefix=$(realpath ../tmp/libvorbis)
make && make install

SOX_CPPFLAGS="$SOX_CPPFLAGS -I$(realpath ../tmp/libvorbis/include)"
SOX_LDFLAGS="$SOX_LDFLAGS -L$(realpath ../tmp/libvorbis/lib)"
SOX_WITH="$SOX_WITH --with-oggvorbis"
cd ..

# echo "*** Warning: Doxygen not found; documentation will not be built."
# *** Warning: Doxygen not found; documentation will not be built.
# touch doxygen-build.stamp
#-----------------------
mkdir tmp/sox
cd sox-14.4.2

CPPFLAGS="$SOX_CPPFLAGS" \
  LDFLAGS="$SOX_LDFLAGS" \
  ./configure --disable-shared --enable-static --prefix=$(realpath ../tmp/sox) \
  $SOX_WITH \
  --without-png --without-lpc10 --without-gsm \
  --disable-symlinks

make clean
make -s && make install

cd ..

cp  ./tmp/sox/bin/sox .
ls -l sox

# pi@raspberrypi:~/SOX $ ls -l sox
# -rwxr-xr-x 1 pi pi 3979940 Dec 13 14:08 sox
BUILD OPTIONS
Debugging build............no
Distro name ...............not specified!
Dynamic loading support....no
Pkg-config location........$(libdir)/pkgconfig
Play and rec symlinks......no
Symlinks enabled...........no

OPTIONAL DEVICE DRIVERS
ao (Xiph)..................no
alsa (Linux)...............no
coreaudio (Mac OS X).......no
sndio (OpenBSD)............no
oss........................yes
pulseaudio.................no
sunaudio...................no
waveaudio (MS-Windows).....no

OPTIONAL FILE FORMATS
amrnb......................no
amrwb......................no
flac.......................yes
gsm........................no
lpc10......................no
mp2/mp3....................yes
 id3tag....................no
 lame......................yes
 lame id3tag...............yes
 dlopen lame...............no
 mad.......................yes
 dlopen mad................no
 twolame...................no
oggvorbis..................yes
opus.......................no
sndfile....................no
wavpack....................no

OTHER OPTIONS
ladspa effects.............no
magic support..............no
png support................no
OpenMP support.............yes, -fopenmp

Configure finished.  Do 'make -s && make install' to compile and install SoX.
pi@raspberrypi:~/SOX/sox-14.4.2 $ ./configure --help
`configure' configures SoX 14.4.2 to adapt to many kinds of systems.

Usage: ./configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print `checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for `--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [/usr/local]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, `make install' will install all the files in
`/usr/local/bin', `/usr/local/lib' etc.  You can specify
an installation prefix other than `/usr/local' using `--prefix',
for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/sox]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
  --target=TARGET   configure for building compilers for TARGET [HOST]

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-silent-rules   less verbose build output (undo: "make V=1")
  --disable-silent-rules  verbose build output (undo: "make V=0")
  --enable-dependency-tracking
                          do not reject slow dependency extractors
  --disable-dependency-tracking
                          speeds up one-time build
  --enable-shared[=PKGS]  build shared libraries [default=yes]
  --enable-static[=PKGS]  build static libraries [default=yes]
  --enable-fast-install[=PKGS]
                          optimize for fast installation [default=yes]
  --disable-libtool-lock  avoid locking (might break parallel builds)
  --enable-debug          make a debug build
  --disable-stack-protector
                          Disable GCC's/libc's stack-smashing protection
  --disable-largefile     omit support for large files
  --disable-silent-libtool
                          Verbose libtool
  --disable-openmp        do not use OpenMP
  --enable-dl-mad         Dlopen mad instead of linking in.
  --enable-dl-lame        Dlopen lame instead of linking in.
  --enable-dl-twolame     Dlopen twolame instead of linking in.
  --enable-dl-amrwb       Dlopen amrbw instead of linking in.
  --enable-dl-amrnb       Dlopen amrnb instead of linking in.
  --enable-dl-sndfile     Dlopen sndfile instead of linking in.
  --disable-symlinks      Don't make any symlinks to sox.

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --without-libltdl       Don't try to use libltdl for external dynamic
                          library support
  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
                          both]
  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
  --with-sysroot=DIR Search for dependent libraries within DIR
                        (or the compiler's sysroot if not specified).
  --with-dyn-default      Default to loading optional formats dynamically
  --with-pkgconfigdir     location to install .pc files or "no" to disable
                          (default=$(libdir)/pkgconfig)
  --with-distro=distro    Provide distribution name
  --without-magic         Don't try to use magic
  --without-png           Don't try to use png
  --without-ladspa        Don't try to use LADSPA
  --with-ladspa-path      Default search path for LADSPA plugins
  --without-mad           Don't try to use MAD (MP3 Audio Decoder)
  --without-id3tag        Don't try to use id3tag
  --without-lame          Don't try to use LAME (LAME Ain't an MP3 Encoder)
  --without-twolame       Don't try to use Twolame (MP2 Audio Encoder)
  --with-oggvorbis=dyn    load oggvorbis dynamically
  --with-opus=dyn         load opus dynamically
  --with-flac=dyn         load flac dynamically
  --with-amrwb=dyn        load amrwb dynamically
  --with-amrnb=dyn        load amrnb dynamically
  --with-wavpack=dyn      load wavpack dynamically
  --with-sndio=dyn        load sndio dynamically
  --with-coreaudio=dyn    load coreaudio dynamically
  --with-alsa=dyn         load alsa dynamically
  --with-ao=dyn           load ao dynamically
  --with-pulseaudio=dyn   load pulseaudio dynamically
  --with-waveaudio=dyn    load waveaudio dynamically
  --with-sndfile=dyn      load sndfile dynamically
  --with-oss=dyn          load oss dynamically
  --with-sunaudio=dyn     load sunaudio dynamically
  --with-mp3=dyn          load mp3 dynamically
  --with-gsm=dyn          load gsm dynamically
  --with-lpc10=dyn        load lpc10 dynamically

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  CPP         C preprocessor
  PKG_CONFIG  path to pkg-config utility
  PKG_CONFIG_PATH
              directories to add to pkg-config's search path
  PKG_CONFIG_LIBDIR
              path overriding pkg-config's built-in search path
  OPUS_CFLAGS C compiler flags for OPUS, overriding pkg-config
  OPUS_LIBS   linker flags for OPUS, overriding pkg-config
  SNDFILE_CFLAGS
              C compiler flags for SNDFILE, overriding pkg-config
  SNDFILE_LIBS
              linker flags for SNDFILE, overriding pkg-config

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to <sox-devel@lists.sourceforge.net>.
pi@raspberrypi:~/SOX $ ./sox
./sox:      SoX v14.4.2

./sox FAIL sox: Not enough input filenames specified

Usage summary: [gopts] [[fopts] infile]... [fopts] outfile [effect [effopt]]...

SPECIAL FILENAMES (infile, outfile):
-                        Pipe/redirect input/output (stdin/stdout); may need -t
-d, --default-device     Use the default audio device (where available)
-n, --null               Use the `null' file handler; e.g. with synth effect
-p, --sox-pipe           Alias for `-t sox -'

SPECIAL FILENAMES (infile only):
"|program [options] ..." Pipe input from external program (where supported)
http://server/file       Use the given URL as input file (where supported)

GLOBAL OPTIONS (gopts) (can be specified at any point before the first effect):
--buffer BYTES           Set the size of all processing buffers (default 8192)
--clobber                Don't prompt to overwrite output file (default)
--combine concatenate    Concatenate all input files (default for sox, rec)
--combine sequence       Sequence all input files (default for play)
-D, --no-dither          Don't dither automatically
--dft-min NUM            Minimum size (log2) for DFT processing (default 10)
--effects-file FILENAME  File containing effects and options
-G, --guard              Use temporary files to guard against clipping
-h, --help               Display version number and usage information
--help-effect NAME       Show usage of effect NAME, or NAME=all for all
--help-format NAME       Show info on format NAME, or NAME=all for all
--i, --info              Behave as soxi(1)
--input-buffer BYTES     Override the input buffer size (default: as --buffer)
--no-clobber             Prompt to overwrite output file
-m, --combine mix        Mix multiple input files (instead of concatenating)
--combine mix-power      Mix to equal power (instead of concatenating)
-M, --combine merge      Merge multiple input files (instead of concatenating)
--multi-threaded         Enable parallel effects channels processing
--norm                   Guard (see --guard) & normalise
--play-rate-arg ARG      Default `rate' argument for auto-resample with `play'
--plot gnuplot|octave    Generate script to plot response of filter effect
-q, --no-show-progress   Run in quiet mode; opposite of -S
--replay-gain track|album|off  Default: off (sox, rec), track (play)
-R                       Use default random numbers (same on each run of SoX)
-S, --show-progress      Display progress while processing audio data
--single-threaded        Disable parallel effects channels processing
--temp DIRECTORY         Specify the directory to use for temporary files
-T, --combine multiply   Multiply samples of corresponding channels from all
                         input files (instead of concatenating)
--version                Display version number of SoX and exit
-V[LEVEL]                Increment or set verbosity level (default 2); levels:
                           1: failure messages
                           2: warnings
                           3: details of processing
                           4-6: increasing levels of debug messages
FORMAT OPTIONS (fopts):
Input file format options need only be supplied for files that are headerless.
Output files will have the same format as the input file where possible and not
overridden by any of various means including providing output format options.

-v|--volume FACTOR       Input file volume adjustment factor (real number)
--ignore-length          Ignore input file length given in header; read to EOF
-t|--type FILETYPE       File type of audio
-e|--encoding ENCODING   Set encoding (ENCODING may be one of signed-integer,
                         unsigned-integer, floating-point, mu-law, a-law,
                         ima-adpcm, ms-adpcm, gsm-full-rate)
-b|--bits BITS           Encoded sample size in bits
-N|--reverse-nibbles     Encoded nibble-order
-X|--reverse-bits        Encoded bit-order
--endian little|big|swap Encoded byte-order; swap means opposite to default
-L/-B/-x                 Short options for the above
-c|--channels CHANNELS   Number of channels of audio data; e.g. 2 = stereo
-r|--rate RATE           Sample rate of audio
-C|--compression FACTOR  Compression factor for output format
--add-comment TEXT       Append output file comment
--comment TEXT           Specify comment text for the output file
--comment-file FILENAME  File containing comment text for the output file
--no-glob                Don't `glob' wildcard match the following filename

AUDIO FILE FORMATS: 8svx aif aifc aiff aiffc al amb au avr cdda cdr cvs cvsd cvu dat dvms f32 f4 f64 f8 flac fssd gsrt hcom htk ima ircam la lu maud mp2 mp3 nist ogg prc raw s1 s16 s2 s24 s3 s32 s4 s8 sb sf sl sln smp snd sndr sndt sou sox sph sw txw u1 u16 u2 u24 u3 u32 u4 u8 ub ul uw vms voc vorbis vox wav wavpcm wve xa
PLAYLIST FORMATS: m3u pls
AUDIO DEVICE DRIVERS: oss ossdsp

EFFECTS: allpass band bandpass bandreject bass bend biquad chorus channels compand contrast dcshift deemph delay dither divide+ downsample earwax echo echos equalizer fade fir firfit+ flanger gain highpass hilbert input# loudness lowpass mcompand noiseprof noisered norm oops output# overdrive pad phaser pitch rate remix repeat reverb reverse riaa silence sinc speed splice stat stats stretch swap synth tempo treble tremolo trim upsample vad vol
  * Deprecated effect    + Experimental effect    # LibSoX-only effect
EFFECT OPTIONS (effopts): effect dependent; see --help-effect


● sudo apt-get install soxでインストールした SoXには権利の関係で MP3機能が無い

 sudo apt-get install soxでインストールした Sound eXchangeにはライセンスの関係で MP3機能が有りません。

sudo apt-get install sox
 の場合は SoX v14.4.1
sudo apt-get install sox

pi@raspberrypi:~ $ sox
sox:      SoX v14.4.1

Usage summary: [gopts] [[fopts] infile]... [fopts] outfile [effect [effopt]]...

SPECIAL FILENAMES (infile, outfile):
-                        Pipe/redirect input/output (stdin/stdout); may need -t
-d, --default-device     Use the default audio device (where available)
-n, --null               Use the `null' file handler; e.g. with synth effect
-p, --sox-pipe           Alias for `-t sox -'

SPECIAL FILENAMES (infile only):
"|program [options] ..." Pipe input from external program (where supported)
http://server/file       Use the given URL as input file (where supported)

GLOBAL OPTIONS (gopts) (can be specified at any point before the first effect):
--buffer BYTES           Set the size of all processing buffers (default 8192)
--clobber                Don't prompt to overwrite output file (default)
--combine concatenate    Concatenate all input files (default for sox, rec)
--combine sequence       Sequence all input files (default for play)
-D, --no-dither          Don't dither automatically
--effects-file FILENAME  File containing effects and options
-G, --guard              Use temporary files to guard against clipping
-h, --help               Display version number and usage information
--help-effect NAME       Show usage of effect NAME, or NAME=all for all
--help-format NAME       Show info on format NAME, or NAME=all for all
--i, --info              Behave as soxi(1)
--input-buffer BYTES     Override the input buffer size (default: as --buffer)
--no-clobber             Prompt to overwrite output file
-m, --combine mix        Mix multiple input files (instead of concatenating)
--combine mix-power      Mix to equal power (instead of concatenating)
-M, --combine merge      Merge multiple input files (instead of concatenating)
--magic                  Use `magic' file-type detection
--multi-threaded         Enable parallel effects channels processing
--norm                   Guard (see --guard) & normalise
--play-rate-arg ARG      Default `rate' argument for auto-resample with `play'
--plot gnuplot|octave    Generate script to plot response of filter effect
-q, --no-show-progress   Run in quiet mode; opposite of -S
--replay-gain track|album|off  Default: off (sox, rec), track (play)
-R                       Use default random numbers (same on each run of SoX)
-S, --show-progress      Display progress while processing audio data
--single-threaded        Disable parallel effects channels processing
--temp DIRECTORY         Specify the directory to use for temporary files
-T, --combine multiply   Multiply samples of corresponding channels from all
                         input files (instead of concatenating)
--version                Display version number of SoX and exit
-V[LEVEL]                Increment or set verbosity level (default 2); levels:
                           1: failure messages
                           2: warnings
                           3: details of processing
                           4-6: increasing levels of debug messages
FORMAT OPTIONS (fopts):
Input file format options need only be supplied for files that are headerless.
Output files will have the same format as the input file where possible and not
overriden by any of various means including providing output format options.

-v|--volume FACTOR       Input file volume adjustment factor (real number)
--ignore-length          Ignore input file length given in header; read to EOF
-t|--type FILETYPE       File type of audio
-e|--encoding ENCODING   Set encoding (ENCODING may be one of signed-integer,
                         unsigned-integer, floating-point, mu-law, a-law,
                         ima-adpcm, ms-adpcm, gsm-full-rate)
-b|--bits BITS           Encoded sample size in bits
-N|--reverse-nibbles     Encoded nibble-order
-X|--reverse-bits        Encoded bit-order
--endian little|big|swap Encoded byte-order; swap means opposite to default
-L/-B/-x                 Short options for the above
-c|--channels CHANNELS   Number of channels of audio data; e.g. 2 = stereo
-r|--rate RATE           Sample rate of audio
-C|--compression FACTOR  Compression factor for output format
--add-comment TEXT       Append output file comment
--comment TEXT           Specify comment text for the output file
--comment-file FILENAME  File containing comment text for the output file
--no-glob                Don't `glob' wildcard match the following filename

AUDIO FILE FORMATS: 8svx aif aifc aiff aiffc al amb amr-nb amr-wb anb au avr awb caf cdda cdr cvs cvsd cvu dat dvms f32 f4 f64 f8 fap flac fssd gsm gsrt hcom htk ima ircam la lpc lpc10 lu mat mat4 mat5 maud nist ogg paf prc pvf raw s1 s16 s2 s24 s3 s32 s4 s8 sb sd2 sds sf sl sln smp snd sndfile sndr sndt sou sox sph sw txw u1 u16 u2 u24 u3 u32 u4 u8 ub ul uw vms voc vorbis vox w64 wav wavpcm wv wve xa xi
PLAYLIST FORMATS: m3u pls
AUDIO DEVICE DRIVERS: alsa

EFFECTS: allpass band bandpass bandreject bass bend biquad chorus channels compand contrast dcshift deemph delay dither divide+ downsample earwax echo echos equalizer fade fir firfit+ flanger gain highpass hilbert input# ladspa loudness lowpass mcompand mixer* noiseprof noisered norm oops output# overdrive pad phaser pitch rate remix repeat reverb reverse riaa silence sinc spectrogram speed splice stat stats stretch swap synth tempo treble tremolo trim upsample vad vol
  * Deprecated effect    + Experimental effect    # LibSoX-only effect
EFFECT OPTIONS (effopts): effect dependent; see --help-effect

pi@raspberrypi:~ $ ls -l /usr/bin/sox
-rwxr-xr-x 1 root root 59324 Dec 30  2014 /usr/bin/sox


sudo apt-get install flac

pi@raspberrypi:~ $ flac -v
flac 1.3.2

pi@raspberrypi:~ $ flac
===============================================================================
flac - Command-line FLAC encoder/decoder version 1.3.2
Copyright (C) 2000-2009  Josh Coalson
Copyright (C) 2011-2016  Xiph.Org Foundation

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
===============================================================================

This is the short help; for all options use 'flac --help'; for even more
instructions use 'flac --explain'

Be sure to read the list of known bugs at:
http://xiph.org/flac/documentation_bugs.html

To encode:
  flac [-#] [INPUTFILE [...]]

  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default

To decode:
  flac -d [INPUTFILE [...]]

To test:
  flac -t [INPUTFILE [...]]


sudo apt-get install mpg123

pi@raspberrypi:~ $ mpg123 --version
mpg123 1.23.8

pi@raspberrypi:~ $ mpg123 -?
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layers 1, 2 and 3
        version 1.23.8; written and copyright by Michael Hipp and others
        free software (LGPL) without any warranty but with best wishes

usage: mpg123 [option(s)] [file(s) | URL(s) | -]
supported options [defaults in brackets]:
   -v    increase verbosity level       -q    quiet (don't print title)
   -t    testmode (no output)           -s    write to stdout
   -w f  write output as WAV file
   -k n  skip first n frames [0]        -n n  decode only n frames [all]
   -c    check range violations         -y    DISABLE resync on errors
   -b n  output buffer: n Kbytes [0]    -f n  change scalefactor [32768]
   -r n  set/force samplerate [auto]
   -o m  select output module           -a d  set audio device
   -2    downsample 1:2 (22 kHz)        -4    downsample 1:4 (11 kHz)
   -d n  play every n'th frame only     -h n  play every frame n times
   -0    decode channel 0 (left) only   -1    decode channel 1 (right) only
   -m    mix both channels (mono)       -p p  use HTTP proxy p [$HTTP_PROXY]
   -@ f  read filenames/URLs from f     -T get realtime priority
   -z    shuffle play (with wildcards)  -Z    random play
   -u a  HTTP authentication string     -E f  Equalizer, data from file
   -C    enable control keys            --no-gapless  not skip junk/padding in mp3s
   -?    this help                      --version  print name + version
See the manpage mpg123(1) or call mpg123 with --longhelp for more parameters and information.



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