Abstract
In many video games, sound sources and the player are constantly moving through the environment, establishing the requirement for dynamic reproduction of the acoustic conditions in an enclosed or semi-enclosed space. This paper presents an algorithm for the rotational movement of a sound source for a constant position in space. The method developed alters the amplitude of individual discrete reflections based on their point of origin and the directivity
pattern of the source. Initial analysis of a B-Format impulse response of an enclosed or semi-enclosed space is required in order to locate individual reflections, their arrival directions and their point of origin. Intensity vector
analysis is used to calculate the direction of arrival, circular variance and local maxima to locate individual discrete reflections, and ray tracing to retrace the detected reflections. The room acoustic parameters of the manipulated
impulse responses have been objectively measured and compared against reference impulse responses. Initial testing of the manipulated impulse responses shows that the algorithm shows promise, but requires improvement, namely smaller intervals for the source directivity measurements and investigation into processing of the diffuse field.
pattern of the source. Initial analysis of a B-Format impulse response of an enclosed or semi-enclosed space is required in order to locate individual reflections, their arrival directions and their point of origin. Intensity vector
analysis is used to calculate the direction of arrival, circular variance and local maxima to locate individual discrete reflections, and ray tracing to retrace the detected reflections. The room acoustic parameters of the manipulated
impulse responses have been objectively measured and compared against reference impulse responses. Initial testing of the manipulated impulse responses shows that the algorithm shows promise, but requires improvement, namely smaller intervals for the source directivity measurements and investigation into processing of the diffuse field.
| Original language | English |
|---|---|
| Title of host publication | Audio Engineering Society 61st International Conference |
| Subtitle of host publication | Audio for Games |
| Number of pages | 8 |
| Publication status | Published - 1 Feb 2016 |
| Event | Audio Engineering Society 61st International Conference: Audio for Games - London, United Kingdom Duration: 10 Feb 2016 → 12 Feb 2016 http://www.aes.org/conferences/61/ |
Conference
| Conference | Audio Engineering Society 61st International Conference |
|---|---|
| Abbreviated title | AES 61st Int. Conf., Audio for Games, |
| Country/Territory | United Kingdom |
| City | London |
| Period | 10/02/16 → 12/02/16 |
| Internet address |
Keywords
- audio
- acoustics
- room acoustics
- game audio