Patent ID: 11900951
Assignee: NANJING ZGMICRO COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method for concealing audio packet loss, comprising:
receiving in a Bluetooth receiver audio data including a plurality of data packets;
transforming in the Bluetooth receiver the audio data in a time domain to a frequency domain wherein spectrum of the audio data is divided into a plurality of bands;
determining incorrect data packets among n consecutive data packets and average energy in each of frequency bands in the frequency domain, wherein spectrum of the incorrect data packets is divided into a plurality of bands the frequency bands are classified as a plurality of first bins and second bins based on the determined average energy in each of the frequency bands;
taking the average energy in each of the first bins for the correct data packets as energy of the second bins for the incorrect data packets; and
recovering data in the first bins by a first predefined algorithm, and recovering data in the second set of frequency bins by a second predefined algorithm, wherein the second predefined algorithm involves far less computation than the first predefined algorithm.