Method and apparatus for detecting echo delay and electronic device

An apparatus for detecting an echo delay, applied to a first electronic device provided with a counter, and comprising:

• a memory;
• a processor;
• and a computer program stored in the memory and executable by the processor, the processor is configured to execute the computer program to,
• in a case that the first electronic device plays an audio and the counter is in an on state, acquire an Nth recording data block received after the counter is turned on, wherein the Nth recording data block is a currently received recording data block, and N is an integer greater than 1,
• perform matching between the Nth recording data block and a reference data block that is in a buffer, wherein both the recording data block and the reference data block are data blocks with target duration, and the buffer is configured to:
• after the counter is turned on, buffer an audio data block played by the first electronic device,
• in a case that the Nth recording data block matches the reference data block in the buffer, acquire a first counting value of the counter, wherein the counter performs counting in a case that the recording data block does not match the reference data block in the buffer, and
• determine the echo delay based on the target duration and the first counting value.

A non-transitory computer-readable storage medium storing a computer instruction, wherein the computer instruction is used for causing a computer to:

• in a case that the first electronic device plays an audio and the counter is in an on state, acquire an Nth recording data block received after the counter is turned on, wherein the Nth recording data block is a currently received recording data block, and N is an integer greater than 1;
• perform matching between the Nth recording data block and a reference data block that is in a buffer, wherein both the recording data block and the reference data block are data blocks with target duration, and the buffer is configured to:
• after the counter is turned on, buffer an audio data block played by the first electronic device;
• in a case that the Nth recording data block matches the reference data block in the buffer, acquire a first counting value of the counter, wherein the counter performs counting in a case that the recording data block does not match the reference data block in the buffer;
• and
• determine the echo delay based on the target duration and the first counting value.