HRIR/HRTF Personalization

Customization of binaural rendering parameters for a given listener. Select here the specific HRTF (ears), by choosing an appropriate HRTF/SOFA file. Tailor HEAD SIZE to optimize lateral cues.

Near-Field Enhancements

Rendering enhancements that improve the sensation of distance for nearby source positions. PARALLAX correction selects HRIR positions based on the actual direction of arrival of the sound object as “seen” by each ear, rather than using the head-centered coordinate system. ILD correction modifies the right/left levels, as a function of frequency, to account for the head shadowing effect of nearby sound objects. This modification is applied predominantly to the opposite side ear, in an effort to maintain sound level of the nearby ear.

Externalization Booster

When rendering sounds over headphones, a common artifact is that sounds seem to be very near, or even inside, the listeners head. This does not typically occur when listening over monitor speakers in a studio. This module adds the subtle acoustic cues of a reproduction system in an acoustically controlled studio, providing improved externalization. This is not to be confused with a reverberation plug-in. GAIN, EQ, and SPATIAL DETAIL level can be adjusted to optimize the effect for the given soundscape to improve transparency while providing these additional cues.

Stabilization Enhancer

In the case of non-tracked binaural rendering, static source positions are sometimes difficult to localize correctly, with front/back confusions often occurring for sources in certain regions. To reduce such confusions, and to help stabilize the perceived position of the sound object, the actual rendered position is varied slightly, providing “added redundancy” of localization cues to the brain, reducing localization confusion.


Download files and follow instructions according to your architecture:

Release notes and previous versions

keep me updated about future releases (mailing list)

consult the newsletter archives

The Anaglyph plug-in can be used in Max Cycling '74 for message based control. A complete list of control messages is available in the control-msg.maxpat Max patch.


Anaglyph v 0.9 - Wise Monkey


Cite: D. Poirier-Quinot and B. F.G. Katz, “The Anaglyph binaural audio engine”, in Audio Eng Soc Conv 144, (Milan), pp. 9591:1–8, May 2018. [ref]

License: The Anaglyph binaural audio engine is released as a freeware for non-commercial use under the CC BY-NC-ND 3.0 license. Contact us to discuss licensing terms for commercial use.

Credits: Anaglyph was developed in the context of numerous academic research projects with the CNRS (previously under the name LSE) and Sorbonne University, with participation by the Dyson School of Engineering, Imperial College London within the remit of the 3D Tune-In project.
The Anaglyph project is supervised by B. F.G. Katz.