Invention Grant
- Patent Title: Encoding of multiple audio signals
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Application No.: US15711538Application Date: 2017-09-21
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Publication No.: US10224042B2Publication Date: 2019-03-05
- Inventor: Venkata Subrahmanyam Chandra Sekhar Chebiyyam , Venkatraman Atti
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Toler Law Group, P.C.
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L19/008 ; G10L19/02 ; H04S3/00 ; H04S1/00 ; G10L21/055 ; G10L19/022 ; G10L19/26

Abstract:
A device includes a receiver configured to receive an encoded bitstream from a second device. The encoded bitstream includes a temporal mismatch value determined based on a reference channel captured at the second device and a target channel captured at the second device. The device also includes a decoder configured to decode the encoded bitstream to generate a first frequency-domain output signal and a second frequency-domain output signal. The decoder is configured to perform inverse transform operations on the frequency-domain output signals to generate a first and second time-domain signals. Based on the temporal mismatch value, the decoder is configured to map the time-domain signals to a decoded target channel and a decoded reference channel. The decoder is also configured to perform a causal time-domain shift operation on the decoded target channel based on the temporal mismatch value to generate an adjusted decoded target channel.
Public/Granted literature
- US20180122385A1 ENCODING OF MULTIPLE AUDIO SIGNALS Public/Granted day:2018-05-03
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