Audio processing apparatus, audio crosstalk processing method and apparatus

An audio processing apparatus, comprising:

• an audio processing chip and an audio output interface, wherein,
• the audio processing chip comprises a first power amplifier configured to output a left channel signal and a second power amplifier configured to output a right channel signal;
• the audio output interface is coupled with a common negative terminal of the first power amplifier and the second power amplifier, and is configured to feed back a reference feedback signal to the common negative terminal, and connect a headphone ground signal of the audio output interface with a main board ground;
• wherein the reference feedback signal is obtained by performing voltage sampling on the headphone ground signal.

An audio crosstalk processing method, comprising:

• acquiring a type of a headphone device plugged in;
• controlling, according to the type of the headphone device, a common negative terminal of a first power amplifier and a second power amplifier of an audio processing chip to be connected with an audio output interface, feeding back a reference feedback signal to the common negative terminal, and connecting a headphone ground signal of the audio output interface with a main board ground;
• wherein the reference feedback signal is obtained by performing voltage sampling on the headphone ground signal;
• and
• determining, by using a path resistor and a channel load resistor of the headphone device, channel crosstalk of the headphone device;
• wherein, the path resistor is a resistor between a preset position and an output terminal of a headphone device common ground, and the preset position is a position of a control switch that connects the common negative terminal with the audio output interface and connects the headphone ground signal with the main board ground.