Abstract
MPEG-4 committee has adopted HILN as the Low Rate Parametric Audio Codec
and has shown enormous potential for next generation wireless multimedia
communications. HILN algorithm tracks all partials in parallel over time
axis. In this article a novel partial tracking approach has been investigated
and applied to extract partial trajectories in harmonic instruments. The
algorithm instead of tracking all partials in parallel like HILN, records
amplitude, phase and frequency information of a single partial over time. The
evolving trajectories of the partials are estimated by a well known technique
call Berg’s Algorithm. This novel approach has been tested with harmonic
instruments having well defined non crossing partials. The algorithm acts as a
framework which could incorporate other estimation techniques like
Autocorrelation and Covariance method though it is beyond the scope of this
paper. The scope of this paper is limited to the description of novel
algorithm integrated with Berg’s approach as estimation technique. A detailed
comparison of proposed algorithm with MPEG-4 HILN Low Rate Parametric Audio
Codec will be presented in future research.
Original language | English |
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Publication status | Published - 2009 |
MoE publication type | Not Eligible |
Event | 12th International Symposium on Wireless Personal Multimedia Communications, WPMC 2009 - Sendai, Japan Duration: 7 Sept 2009 → 10 Sept 2009 |
Conference
Conference | 12th International Symposium on Wireless Personal Multimedia Communications, WPMC 2009 |
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Abbreviated title | WPMC 2009 |
Country/Territory | Japan |
City | Sendai |
Period | 7/09/09 → 10/09/09 |
Keywords
- Partial tracking
- MPEG-4
- HILN
- Berg’s algorithm
- harmonic instruments