Free audio technica software for linux

Audio::Ecasound is a Perl binding to the ecasound sampler, recorder, fx-processor.

SYNOPSIS
One function interface:
use Audio::Ecasound qw(:simple);

eci("cs-add play_chainsetup");
eci("c-add 1st_chain");
eci("-i:some_file.wav");
eci("-o:/dev/dsp");
# multiple n separated commands
eci("cop-add -efl:100
# with comments
cop-select 1
copp-select 1
cs-connect");
eci("start");
my $cutoff_inc = 500.0;
while (1) {
sleep(1);
last if eci("engine-status") ne "running";

my $curpos = eci("get-position");
last if $curpos > 15;

my $next_cutoff = $cutoff_inc + eci("copp-get");
# Optional float argument
eci("copp-set", $next_cutoff);
}
eci("stop");
eci("cs-disconnect");
print "Chain operator status: ", eci("cop-status");

Object Interface

use Audio::Ecasound;

my $e = new Audio::Ecasound;
$e->on_error();
$e->eci("cs-add play_chainsetup");
# etc.
Vanilla Ecasound Control Interface (See Ecasounds Programmer Guide):
use Audio::Ecasound qw(:std);

command("copp-get");
$precise_float = last_float() / 2;
command_float_arg("copp-set", $precise_float);
warn last_error() if error();
IAM Interface, pretend interactive mode commands are functions.
use Audio::Ecasound qw(:iam :simple);

# iam commands as functions with s/-/_/g
my $val = copp_get;
copp_set $val+0.1; # floats are stringified so beware
eci("-i /dev/dsp"); # not all commands are exported

Audio::Ecasound provides perl bindings to the ecasound control interface of the ecasound program. You can use perl to automate or interact with ecasound so you dont have to turn you back on the adoring masses packed into Wembly Stadium.
Ecasound is a software package designed for multitrack audio processing. It can be used for audio playback, recording, format conversions, effects processing, mixing, as a LADSPA plugin host and JACK node. Version >= 2.2.X must be installed to use this package. "SEE ALSO" for more info.

Audio Daemon is a perl module to daemonize various players and support a single UDP interace for different players. Currently you can set up a server for MPG123, Xmms and an icecast stream (using libshout).

Audio::Daemon is made of two parts, the client and server.

The Client (Audio::Daemon::Client) remains the same across the board no matter what server you are communicating with, with a few exceptions noted in the pods.

The Server currently can be configured to be MPG123, Xmms or an Icecast (libshout) stream. Neither the Client nor the Servers need to be run as root and I strongly advise against it.

Audio::Daemon::MPG132:
Requires Audio::Play::MPG123 an optionally Audio::Mixer for volume control. It automatically spawns mpg123 in the background so there is no need to prestart it.

Audio::Daemon::Xmms:
Requires the Xmms and MP3::Info perl module and xmms installed. Id suggest getting the latest version of the Xmms perl module. It uses the volume and random feature built into xmms and if it doesnt find an xmms running it will try to spawn its own copy. Bear in mind that
xmms MUST HAVE an X display to export to, and that xmms must be running as the same user Audio::Daemon::Xmms is.

Audio::Daemon::Shout:
This wasnt easy to do. It requires MP3::Info and libshout to be installed (http://developer.icecast.org/libshout/) as well as a functioning icecast server. The timing here is pretty critical so I recomend being careful not to be polling the server too much. Be sure to read the icecast docs as Im still confused on how I got this part to work.

Audio::TagLib is a library for reading and editing audio meta data, commonly known as tags.

SYNOPSIS

use Audio::TagLib;
use warnings;
use strict;

my $f = Audio::TagLib::FileRef->new("Latex Solar Beef.mp3");
my $artist = $f->tag()->artist();
print $artist->toCString(), "n"; # got "Frank Zappa"

$f->tag()->setAlbum(Audio::TagLib::String->new("Fillmore East"));
$f->save();

my $g = Audio::TagLib::FileRef->new("Free City Rhymes.ogg");
my $album = $g->tag()->album();
print $album->toCString(), "n"; # got "NYC Ghosts & Flowers"

$g->tag()->setTrack(1);
$g->save();

Note that these high level functions work for Ogg, FLAC, MPC and MP3 (or any other formats supported in the future). For this high level API, which is suitable for most applications, the differences between tag and file formats can all be ignored.

Some goals of TagLib: - A clean, high level, C++ API to handling audio meta data. - Support for at least ID3v1, ID3v2 and Ogg Vorbis comments. - A generic, simple API for the most common tagging related functions. - Binary compatibility between minor releases using the standard KDE/Qt techniques for C++ binary compatibility. - Make the tagging framework extensible by library users; i.e. it will be possible for libarary users to implement additional ID3v2 frames, without modifying the TagLib source (through the use of Abstract Factories and such.

Because TagLib desires to be toolkit agnostic, in hope of being widely adopted and the most flexible in licensing TagLib provides many of its own toolkit classes; in fact the only external dependancy that TagLib has, it a semi-sane STL implementation.

MDF audio extracter project is a tool to extract audio data from MDF/MDS audio cd images to wav or raw files. Tracks will be extracted to the current directory and named track_[num].wav or track_[num].raw. Output can also be redirected to stdout to allow the audio data to be fed to an encoder or player directly.
You need both a .mds and .mdf file to be able to extract tracks. The .mds file contains the information about the tracks, while the .mdf file contains the actual data. They usually should have the same name (except for the extension ofcourse). This is case sensitive, so for example FileName is not the same as filename.
Usage: mdfextract [options] file.mds
Options:
-i output mds info instead of extracting
-r extract raw track data
-s output to stdout instead of file
-t < num > extract single track (num > 0)
-q quiet, no output
Version restrictions:
- Probably does not work on big endian archs.

Audio::Mad is a Perl interface to the mad MPEG decoder library.

SYNOPSIS

use Audio::Mad qw(:all);

my $stream = new Audio::Mad::Stream();
my $frame = new Audio::Mad::Frame();
my $synth = new Audio::Mad::Synth();
my $timer = new Audio::Mad::Timer();
my $resample = new Audio::Mad::Resample(44100, 22050);
my $dither = new Audio::Mad::Dither();

my $buffer = join(, );
$stream->buffer($buffer);

FRAME: {
if ($frame->decode($stream) == -1) {
last FRAME unless ($stream->err_ok());

warn "decoding error: " . $stream->error();
next FRAME;
}

$synth->synth($frame);
my $pcm = $dither->dither($resample->resample($synth->samples()));

print $pcm;
next FRAME;
}

This module is an attempt to provide a perl interface to the MAD (MPEG Audio Decoder) library, written by Robert Leslie. It has been designed to be 100% object oriented, and to follow the MAD interface as closely as possible.

So far, most of the MAD library, plus two companion modules are provided as part of the interface. Seperate documentation is provided in perldoc for all of the modules in the Audio::Mad framework.

Audio::CD is a Perl interface to libcdaudio (cd + cddb).

SYNOPSIS

use Audio::CD ();
my $cd = Audio::CD->init;

Audio::CD provides a Perl interface to libcdaudio by Tony Arcieri, available from http://cdcd.undergrid.net/

Several classes provide glue for the libcdaudio functions and data structures.

Audio::CD Class ^

init

Initialize the Audio::CD object:
my $cd = Audio::CD->init;

stat

Stat the Audio::CD object, returns an Audio::CD::Info object.
my $info = $cd->stat;

cddb

Returns an Audio::CDDB object.
my $cddb = $cd->cddb;

play

Play the given cd track (defaults to 1).
$cd->play(1);

stop

Stop the cd.
$cd->stop;

pause

Pause the cd.
$cd->pause;

resume

Resume the cd.
$cd->resume;

eject

Eject the cd.
$cd->eject;

close

Close the cd tray.
$cd->close;

play_frames

$cd->play_frames($startframe, $endframe);

play_track_pos

$cd->play_track_pos($strarttrack, $endtrack, $startpos);

play_track

$cd->play_track($strarttrack, $endtrack);

track_advance

$cd->track_advance($endtrack, $minutes, $seconds);

advance

$cd->advance($minutes, $seconds);

get_volume

Returns an Audio::CD::Volume object.

my $vol = $cd->get_volume;

set_volume

$cd->set_volume($vol);

The Audio File Library provides a uniform and elegant API for accessing a variety of audio file formats, such as AIFF/AIFF-C, WAVE, NeXT/Sun .snd/.au, Berkeley/IRCAM/CARL Sound File, Audio Visual Research, Amiga IFF/8SVX, and NIST SPHERE. Supported compression formats are currently G.711 mu-law and A-law and IMA and MS ADPCM.

Key goals of the Audio File Library are file format transparency and data format transparency. The same calls for opening a file, accessing and manipulating audio metadata (e.g. sample rate, sample format, textual information, MIDI parameters), and reading/writing sample data will work with any supported audio file format. Likewise, the format of the audio data presented to the application need not be tied to the format of the data contained in the file.

The Audio File Library distributed under the GNU Library General Public License.