AlsaPlayer v0.99.80
by Andy Lo-A-Foe
(Andy Lo-A-Foe Website)

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Last Updated: 2007-11-05
For more detail about software : Software Description
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Software Description

AlsaPlayer is a new type of PCM player. It is heavily multi-threaded and tries to excercise the ALSA library and driver quite a bit. It has some very interesting features unique to Linux/Unix players. The goal is to create a fully pluggable framework for playback of all sorts of media with the focus on PCM audio data. The core code was written by Andy Lo-A-Foe with contributions from many other folks. See the credits files for details.

The name AlsaPlayer might be confusing a bit today since we now support a whole bunch of different output systems. The old default OSS audio interface is supported, as well as Esound, NAS (Network Audio Server), Sparc and SGI audio outputs. the most interesting new output is JACK. JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation. We believe that this interface will become the preferred one. JACK uses ALSA for interfacing with the audio hardware.

If you came here looking for ALSA DRIVERS visit and come back once you have them up and running.


Some of the more interesting features in AlsaPlayer are

  • Full speed (pitch) control, positive *and* negative!

    This is the first Linux and only GPL player that supports this. You can
    scratch mp3's and even audio CD's in realtime.

  • Icecast/shoutcast streaming support
  • Interface plugins

    Completely redefine the user interface

  • Remote control

    Control alsaplayer from another application

  • Low latency mode

    On capable soundcards latency can be as low as 1.3ms!

  • Playlist/Queue support
  • Plays nice with concurrent audio tools

    Doesn't touch the hardware mixer

  • Concurrent visual scopes

    Open as many scopes as there are.

  • Multi-threaded design

    This results in efficient/skip free playback. You can also activate real-time
    scheduling for even better performance.

  • Accurate scope/audio syncing
  • Portable

Supported file formats

Supported sound systems
AlsaPlayer supports quite a few sound systems, not just ALSA, as the name
might suggest. Currently we support the following APIs

  • JACK

    A low-latency audio server, written primarily for the Linux operating system.
    It can connect a number of different applications to an audio device, as well
    as allowing them to share audio between themselves.

  • ALSA

    The next-generation audio interface for Linux. ALSA was recently merged in the
    2.5.x Linux tree. It has many advantages over the old OSS interface.

  • OSS

    The old Linux audio API. This is still widely used.

  • SGI

    For SGI (IRIX) systems, using the SGI audio library.

  • NAS

    Network Audio Server. X11 for audio if you will.

  • ESD

    Esound, found in GNOME.

  • Null

    Nosound driver, useful for testing.

See Changes at

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