SIGNAL GENERATING CIRCUIT AND AUDIO PROCESSING DEVICE

The present invention relates to a signal generating circuit and an audio processing device. The circuit comprises a switch module, a voltage producing module, and a signal generating module; the switch module is connected to the voltage producing module, comprises at least one control switch, and is used for receiving a frequency division signal, and under the action of the frequency division signal, the at least one control switch is turned on or turned off; the voltage producing module is separately connected to the switch module and the signal generating module and used for producing a first voltage and a second voltage, wherein the at least one control switch controls the first voltage and the second voltage to change; and the signal generating module is connected to the voltage producing module and used for generating a carrier signal with the same frequency as the frequency division signal according to the received first and second voltages. By generating the carrier signal with the same frequency as t