Echo time delay detection method, echo elimination chip, and terminal equipment
AssigneeTencent Technology (Shenzhen) Company Limited
InventorJun Bin LIANG
Life of this patent
Estimating the term…
Abstract
An echo time delay detection method, an echo elimination device, and terminal equipment are provided. The echo time delay detection method includes: obtaining an audio signal transmitted through air and acquired by an audio input device of terminal equipment when detecting a call access request, the audio signal corresponding to an audio output by an audio output device of the terminal equipment; converting the audio signal to obtain a signal to be processed; determining a reference signal corresponding to the audio signal; and determining an echo time delay value according to the reference signal and the signal to be processed.
Claims20
An echo time delay detection method, comprising:
- obtaining an audio signal transmitted through air and acquired by an audio input device of terminal equipment when detecting a call access request, the audio signal corresponding to an audio output by an audio output device of the terminal equipment;
- converting the audio signal to obtain a signal to be processed;
- determining a reference signal corresponding to the audio signal;
- and
- determining a first echo time delay value according to the reference signal and the signal to be processed.
An echo elimination device, comprising:
- at least one memory operable to store program code;
- and
- at least one processor operable to read the program code, and operate as instructed by the program code to:
- obtain an audio signal transmitted through air and acquired by an audio input device of terminal equipment when detecting a call access request, the audio signal corresponding to an audio output by an audio output device of the terminal equipment;
- convert the audio signal to obtain a signal to be processed;
- determine a reference signal corresponding to the audio signal;
- and
- determine a first echo time delay value according to the reference signal and the signal to be processed.
Dependencies are inferred from the claim text.