Acoustic Spaces Extension¶
describing properties of acoustic rooms, as needed by renderers who model spaces.
- Room size
- Room shape
- Material/damping of walls
o frequency dependent
o Units: % Absorptions
o diffusion - Environmental variables
o Humidity
o Temperature
Reviews¶
Master thesis by Karin Münnich, chapter 3. p. 41 [1]¶
- Room Presence: energy of the early reflections in percentage to direct sound
- Running Reverb: early decay rate of the late reverb
- Envelopment: energy of the late reverb in percentage to direct sound
- LateReverb: general decay rate of the late reverb
- Heaviness: energy of the LF-component of the late reverb
- Frequency: x-frequency between LF and Mids
- Liveness: energy of the HF-component of the late reverb
- Frequency: x-frequency between Mids and HF
The proposed parameter for a scene description format base mainly on the MPEG-4 specification [2], chapter 9.4.2.83.
Also IRCAM's Spatialisateur uses these 6 parameters.
References¶
[1] Münnich, K. Untersuchung und Implementierung von Speicher- und Übertragungsformaten für Mischwerkzeuge der Klangfeldsynthese. Master’s thesis, 2003, Technische Universität Ilmenau.
[2] ISO/IEC. ISO/IEC 14496-1:2002. Information Technology - Coding of audiovisual objects - Part 1: Systems. 2002.