An Augmented Reality Audio Mixer and Equalizer
Matti Karjalainen, Ville Riikonen, Miikka Tikander · Journal of the Audio Engineering Society · 2008
In Augmented Reality Audio (ARA) applications the real sound environment of the user is extended with virtual objects. The real environment is reproduced as a pseudo-acoustic world via a special ARA headset that consists of binaural microphones and headphones. However, the headset causes coloration to the pseudoacoustic representation. In order to make the headset acoustically transparent, equalization is needed. Digital equalization easily causes unacceptable delays. This paper presents a novel ARA mixer with real-time analog equalization to correct the coloration caused by the leakage through the headset and changed resonances in the closed ear canal.