Title:
オーディオ処理システム
Document Type and Number:
Japanese Patent JP6407928
Kind Code:
B2
Abstract:
An audio processing system (100) comprises a front-end component (102, 103), which receives quantized spectral components and performs an inverse quantization, yielding a time-domain representation of an intermediate signal. The audio processing system further comprises a frequency-domain processing stage (104, 105, 106, 107, 108), configured to provide a time-domain representation of a processed audio signal, and a sample rate converter (109), providing a reconstructed audio signal sampled at a target sampling frequency. The respective internal sampling rates of the time-domain representation of the intermediate audio signal and of the time-domain representation of the processed audio signal are equal. In particular embodiments, the processing stage comprises a parametric upmix stage which is operable in at least two different modes and is associated with a delay stage that ensures constant total delay.
Inventors:
Quorum, christopher
Prunhagen, Heiko
Willemoes, Larche
Prunhagen, Heiko
Willemoes, Larche
Application Number:
JP2016184272A
Publication Date:
October 17, 2018
Filing Date:
September 21, 2016
Export Citation:
Assignee:
Dolby International Arb
International Classes:
G10L19/008; H04S3/00; G10L19/02; H04S7/00
Domestic Patent References:
| JP2011528129A | ||||
| JP2006523859A | ||||
| JP2008527431A | ||||
| JP2012527021A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki