3-D Sound Image Localization in Reproduction of 22.2 Multichannel Audio Based on Room Impulse Response Generation with Vector Composition
* Presenting author
To simplify content creation processes and improve the realism of 22.2 multichannel system, a method to localize sound images is derived in this paper, which is an improvement of the method based on vector base amplitude panning. The sound image localization can be realized by a specific direction and distance. A sound field is simulated to make spatial impressions in 22.2 multichannel reproduction, which includes reflection and reverberation, and the simulation approach is based on room impulse response generation with vector composition. To control the sound pressure on the ears of the listener, the amplitude of the input signal is attenuated in advance by the distance of sound image. Evaluation experiments were carried out both subjectively and objectively with binaural recording. The improvement in the reproduction of sound image’s distance is realized, while the direction of the sound image stays the same as the method based on vector base amplitude panning.