Produktübergreifende Verbesserte Harmonische Transposition
Anmelder: Dolby International AB 🇮🇪
Details
- Veröffentlichungs-Nr.
- EP4742241
- Anmeldetag
- 15. Januar 2010
- Veröffentlichung
- 13. Mai 2026
- Rechtsraum
- EP
- IPC
- G10L25/90(TSUSHIMA MINEO et al.)
Abstract
The present invention relates to audio coding systems which make use of a harmonic transposition method for high frequency reconstruction (HFR). A system and a method for generating a high frequency component of a signal from a low frequency component of the signal is described. The system comprises an analysis filter bank providing a plurality of analysis subband signals of the low frequency component of the signal. It also comprises a non-linear processing unit to generate a synthesis subband signal with a synthesis frequency by modifying the phase of a first and a second of the plurality of analysis subband signals and by combining the phase-modified analysis subband signals. Finally, it comprises a synthesis filter bank for generating the high frequency component of the signal from the synthesis subband signal.
Anmelder
- Firma
- Dolby International AB
- Land
- 🇮🇪 Irland
Tochtergesellschaft der US-amerikanischen Dolby Laboratories mit Sitz in Amsterdam, die Patente und Lizenzen im Bereich Audio- und Videotechnologie verwaltet.
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