公开(公告)号：US20220284911A1

公开(公告)日：2022-09-08

申请号：US17824781

申请日：2022-05-25

Applicant: QUALCOMM Incorporated

Inventor： Richard TURNER ,  Megan Lucy TAGGART ,  Laurent WOJCIESZAK ,  Justin HUNDT

IPC: G10L19/032 ,  G10L19/005

Abstract: Methods, devices, non-transitory computer-readable medium, and systems are described for compressing audio data. The techniques involve obtaining a sequence of digitized samples of an audio signal, performing a transform using the sequence of digitized samples, to generate a plurality of spectral lines, obtaining a group of spectral lines from the plurality of spectral lines, and quantizing the group of spectral lines to generate a group of quantized values. Quantizing the group of spectral lines to generate the group of quantized values may comprise performing a specialized rounding operation on a spectral line selected from the group of spectral lines and using the specialized rounding operation to force a group parity value, computed for the group of quantized values, to a predetermined parity value. One or more data frames based on the group of quantized values may be outputted.

公开(公告)号：US20210390966A1

公开(公告)日：2021-12-16

申请号：US16899532

申请日：2020-06-11

Applicant: QUALCOMM Incorporated

Inventor： Richard TURNER ,  Megan Lucy TAGGART ,  Laurent WOJCIESZAK ,  Justin HUNDT

IPC: G10L19/032 ,  G10L19/005

Abstract: Methods, devices, non-transitory computer-readable medium, and systems are described for compressing audio data. The techniques involve obtaining a sequence of digitized samples of an audio signal, performing a transform using the sequence of digitized samples, to generate a plurality of spectral lines, obtaining a group of spectral lines from the plurality of spectral lines, and quantizing the group of spectral lines to generate a group of quantized values. Quantizing the group of spectral lines to generate the group of quantized values may comprise performing a specialized rounding operation on a spectral line selected from the group of spectral lines and using the specialized rounding operation to force a group parity value, computed for the group of quantized values, to a predetermined parity value. One or more data frames based on the group of quantized values may be outputted.