Free audio software for linux

Audio::M4P is a Perl module that provides M4P/MP4/M4A QuickTime audio music format modules.

M4P is a QuickTime protected audio file format.

SYNOPSIS

use Audio::M4P::QuickTime;

my $mp4file = "file.m4p";
my $qt = new Audio::M4P::QuickTime(file => $mp4file);
my $tags = $qt->GetMetaInfo;
print "Artist is $tags->{ARTIST}n" if $tags->{ARTIST};


use Audio::M4P::Decrypt;

my $outfile = mydecodedfile;
my $deDRMS = new Audio::M4P::Decrypt;
$deDRMS->DeDRMS($mp4file, $outfile);

See also the individual pod documentation for Audio::M4P::QuickTime
and Audio::M4P::Decrypt.

Make audio is a graphical tool to create audio CDs from MP3 or wav files. You can simply arrange a playlist of all songs that you want. The application converts MP3 files to WAV and then burns them on the CD.

Audio::Scrobbler is a Perl interface to audioscrobbler.com/last.fm.

SYNOPSIS

use Audio::Scrobbler;

$scrob = new Audio::Scrobbler(cfg => { ... });

$scrob->handshake();
$scrob->submit(artist => "foo", album => "hello", track => "world",
length => 180);

The Audio::Scrobbler module provides a Perl interface to the track submission API of Last.fms AudioScrobbler - http://www.audioscrobbler.com/. So far, only track submissions are handled; the future plans include access to the various statistics.

Audio::DSP is a Perl interface to *NIX digital audio device.

SYNOPSIS

use Audio::DSP;

($buf, $chan, $fmt, $rate) = (4096, 1, 8, 8192);

$dsp = new Audio::DSP(buffer => $buf,
channels => $chan,
format => $fmt,
rate => $rate);

$seconds = 5;
$length = ($chan * $fmt * $rate * $seconds) / 8;

$dsp->init() || die $dsp->errstr();

# Record 5 seconds of sound
for (my $i = 0; $i < $length; $i += $buf) {
$dsp->read() || die $dsp->errstr();
}

# Play it back
for (;;) {
$dsp->write() || last;
}

$dsp->close();

Audio::DSP is built around the OSS (Open Sound System) API and allows perl to interface with a digital audio device. It provides, among other things, an initialization method which opens and handles ioctl messaging on the audio device file. Audio::DSP also provides some rudimentary methods for the storage and manipulation of audio data in memory.

In order to use Audio::DSP, youll need to have the necessary OSS drivers/libraries installed. OSS is available for many popular Unices, and a GPLed version (with which this extension was initially developed and tested) is distributed with with the Linux kernel.

Audio::DB are tools for generating relational databases of MP3s.

SYNOPSIS

use Audio::DB;
my $mp3 = Audio::DB->new(-user =>user,
-pass =>password,
-host =>db_host,
-dsn =>music_db,
-adaptor => mysql);

$mp3->initialize(1);

$mp3->load_database(-dirs =>[/path/to/MP3s/],
-tmp =>/tmp);

Audio::DB is a module for creating relational databases of MP3 files directly from data stored in ID3 tags or from flatfiles of information of track information. Once created, Audio::DB provides various methods for creating reports and web pages of your collection.

Although its nutritious and delicious on its own, Audio::DB was created for use with Apache::Audio::DB, a subclass of Apache::MP3. This module makes it easy to make your collection web-accessible, complete with browsing, searching, streaming, multiple users, playlists, ratings, and more!

Implements a LADSPA 1.1 host.

SYNOPSIS

use Audio::LADSPA;

for my $class (Audio::LADSPA->plugins) {
print "t",$class->name," (",$class->id,"/",$class->label,")";
}

LADSPA plugins are objects in shared libraries that can generate or transform audio signals (like VST or Direct-X plugins on Mac and Win32 systems). Most of the existing LADSPA plugins are pretty low-level compared to VST plugins (you get seperate oscilator, ADSR and delay plugins instead of "complete" virtual synthesizers etc). See also http://www.ladspa.org/

With these modules you can create a LADSPA host, which can load the plugins, query their capabilities, connect them together in a network, and run audio streams through them.

The LADSPA API was developed for linux but should be platform independent, so you might be able to compile these modules and the nessisary plugins on win32 systems (please let me know if it works or not).

Audio::AMR::Decode is a Perl extension do decode .amr files.

SYNOPSIS

use Audio::AMR::Decode;
Audio::AMR::Decode::amr2raw(infile.amr, outfile.pcm);

This module will attempt to decode an amr encoded audio file to a raw pcm audio encoded file.

The package contains C-source files for the optimized fixed-point speech decoder. The optimized fixed-point speech decoder is bit-exact with 3GPP TS 26.073 fixed-point speech decoder version 4.1.0.