Multi-channel signal encoding method, multi-channel signal decoding method, encoding device, decoding device, and terminal device

A multi-channel signal decoding method, comprising:

• parsing a bitstream from an encoding device to obtain silent flag information, and determining encoded information of each transmission channel based on the silent flag information, wherein the silent flag information comprises a silent enable flag and/or a silent flag;
• decoding the encoded information of each transmission channel to obtain a decoded signal of each transmission channel;
• and
• performing multi-channel decoding processing on the decoded signal of each transmission channel to obtain a multi-channel decoding output signal.

An encoding device, wherein the encoding device comprises a processor and a memory, and the processor and the memory communicate with each other;

• the memory is configured to store instructions;
• and
• the processor is configured to execute the instructions in the memory to:
• obtain silent flag information of a multi-channel signal, wherein the silent flag information comprises a silent enable flag and/or a silent flag;
• perform multi-channel encoding processing on the multi-channel signal to obtain a transmission channel signal of each transmission channel;
• and
• generate a bitstream based on the transmission channel signal of each transmission channel and the silent flag information, wherein the bitstream comprises the silent flag information and a multi-channel encoding result of the transmission channel signal.

A decoding device, wherein the decoding device comprises a processor and a memory, and the processor and the memory communicate with each other;

• the memory is configured to store instructions;
• and
• the processor is configured to execute the instructions in the memory to:
• parse a bitstream from an encoding device to obtain silent flag information, and determine encoded information of each transmission channel based on the silent flag information, wherein the silent flag information comprises a silent enable flag and/or a silent flag;
• and
• decode the encoded information of each transmission channel to obtain a decoded signal of each transmission channel, wherein
• perform multi-channel decoding processing on the decoded signal of each transmission channel to obtain a multi-channel decoding output signal.