foo_dsp_xover is a software digital crossover implementation that I have been working on for a while in my spare time as a hobby. It is a Foobar2000 audio player plugin that implements this digital crossover to achieve active multi-amplification.
This software needs to run on a WinXP PC equipped with a multi-channel sound card (e.g. 5.1 or 7.1 surround sound card) feeding the various voices of a multi-amplifier and loudspeaker active configuration set-up.
Listing of specialized output components that extend Foobar2000 in order to interface directly with system hardware or software output devices. Some of these are already installed by default and the remainder should be installed as needed.
By default foobar2000 uses the Windows Audio Session API (WASAPI) output in shared mode on modern versions (v1.6 and later). This means foobar2000 sends audio through the standard Windows audio stack using WASAPI unless you explicitly select another output (like WASAPI exclusive, ASIO with a plugin, or other output components).
The built in outputs and all installed output components can be selected from in the Preferences: Playback > Output > Device submenu.
Exclusive mode (in the context of foobar2000 and Windows audio) means that the player takes sole control of the audio device, bypassing the Windows system mixer for the duration of playback.
Here is what that entails, factually and practically:
What happens in exclusive mode
The audio device is locked to foobar2000 while playback is active.
No other application can play sound through that device at the same time.
Audio data is sent directly to the driver via WASAPI Exclusive (or ASIO), without Windows resampling or mixing.
The device switches to the exact sample rate and bit depth of the track being played, if the driver supports it.
How this differs from shared mode
In shared mode, Windows mixes audio from multiple applications and resamples everything to the format set in Windows Sound → Device Properties → Advanced.
In exclusive mode, Windows’ mixer is bypassed entirely, so there is no system-level resampling, mixing, or volume processing.
Technical implications
Enables bit-perfect playback, assuming no DSPs or volume scaling are active in foobar2000.
Prevents interference from system sounds, notifications, or browser audio.
Reduces latency and avoids format conversions imposed by the OS mixer.
Trade-offs and limitations
System sounds and other apps will be silent while exclusive playback is active.
If an application already has exclusive control, foobar2000 cannot start playback on that device.
Some USB DACs and Bluetooth devices have limited or unstable exclusive support, depending on drivers.
Exclusive mode does not improve audio quality if the DAC or downstream hardware already resamples internally.
Right click in the new area and select “Add New UI Element…“
Select “Spider Monkey Panel” in the Utility section
You should now see a blank Spider Monkey panel and the message “Click here to open editor.“
Click on the panel to open the editor and click the “Files” button and select “Import” and navigate to the biography script folder, select the script file “biography.x.x.x.js” and click “Open“
foobarCon is a Foobar2000 remote control app for Android. foobarCon needs Foobar2000 components to be installed for proper operation. There are basic and pro editions on Google Play and both are now free.
The Audio File 