Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation
| Autor: | Hannes Gamper, Ville Pulkki, Christoph Hold, Nikunj Raghuvanshi, Ivan Tashev |
|---|---|
| Přispěvatelé: | TU Berlin, Microsoft Research, Dept Signal Process and Acoust, Aalto-yliopisto, Aalto University |
| Rok vydání: | 2019 |
| Předmět: |
ta213
Ambisonics Computer science Acoustics ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Equalization (audio) Spherical harmonics Tapering 01 natural sciences Transfer function Rendering (computer graphics) 030507 speech-language pathology & audiology 03 medical and health sciences 0103 physical sciences Sound quality 0305 other medical science 010301 acoustics Binaural recording Decoding methods ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | ICASSP |
| DOI: | 10.1109/icassp.2019.8683751 |
| Popis: | A powerful and flexible approach to record or encode a spatial sound scene is through spherical harmonics (SHs), or Ambisonics. An SH-encoded scene can be rendered binaurally by applying SH-encoded head-related transfer functions (HRTFs). Limitations of the recording equipment or computational constraints dictate the spatial reproduction accuracy, thus rendering might suffer from spatial degradation as well as coloration. This paper studies the effect of tapering the SH representation of a binaurally rendered sound field in conjunction with its spectral equalization. The proposed approach is shown to reduce coloration and thus improves perceived audio quality. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|