DBMix v0.9.8
by Robert Michael S Dean
(Robert Michael S Dean Website)

Download from the
Author's Website

Operating System:
File Size: 293 KB
License Conditions:

General Public Licence

System Requirements:
Last Updated: 2002-02-24
For more detail about software : Software Description
  View DBMix v0.9.8 Screenshot

Software Description

DBMix is a software DJ mixing system for digital audio. DBMix allows a user to output multiple simultaneous audio streams on a single sound device, and to transform/modify each stream independently. There are five main components to DBMix:

  1. Fourier Synthesis Daemon - this is a daemon application
    that handles adding multiple data streams into a single data stream for
    output, allowing you to play multiple songs simultaneously with a single
    soundcard. Each data input stream to the fourier synthesis daemon is refered to as a "channel", because this is the name given to each input to an analog DJ Mixer.
  2. Clients - responsible for creating input to the system, and writing the data to a dbfsd channel. Example generators are xmms, mpg123, and sox.
  3. DBAudiolib - this is the client interface API to dbmix.
    It provides transparent format conversion and pitch/speed control.
  4. Mixer - the mixer is the user interface to the DBMix system. It allows a single interface to control all input channels. An example of a mixer is the DBMixer application. DBMixer allows the user to mute, change volume, cue, and crossfade inputs
  5. Peripherals - hardware devices that you can use
    to control aspects of dbmix. See the section on exmixer below for and


  • Output multiple audio channels (up to 8 inputs) using a single sound device
  • Cueing support using multiple soundcards. (ability to have one sound device used for a master output, and a second sound device for headphones)
  • Cueing support using a single soundcard.
  • Supports the standard digital audio format of 16bit signed data at 44.1 KHz
  • Use of the Open Sound System for sound device control
  • Session recording to a wav file (controlled by the dbmixer options menu)
  • A single DJ Mixer style GUI interface for controlling DBMix channels.

    • Independent channel controls: volume/gain/level, pitch/speed control +/-
      10%mute, cue, and pause.
    • IPC layer to allow the mixer to control the play/pause/stop/etc of dbmix client programs.
    • Crossfader
    • Punch buttons (allows you to add in the muted crossfader input. Handy
      for popping in sound bytes)
    • Control of master and cue soundcard mixers
    • Swap master and cue soundcards on the fly
    • Autofade buttons with fade speed control
    • L/R Balance control
    • Clipping notification
    • The mixer is optionally controled by an external device. See section
      titled Exmixer.
    • Digital Sampler with start/end editing abilities, and Load/Save samples
    • Beat matching synchronization tools (sorry no UI yet)

  • Multiple client support: xmms output
    plugin, mpg123, dbcat, HREF="http://www-stud.fht-esslingen.de/~alkoit00/tX">terminatorX, gqmpeg
    (Note: to use gqmpeg, openthe preferences dialog, choose the Output tab, and
    enter "-s" in the User options field to enable output to stdout. To launch
    gqmpeg, type "gqmpeg | dbcat &" at the command prompt)
  • speed/pitch control.
  • format conversion from:

    • 8 bit signed mono and stereo data
    • 8 bit unsigned mono and stereo data
    • 16 bit signed mono and stereo data

  • Syndicate content