Abstract: The present application discloses a large-area dual-frequency heterojunction solar cell thin film deposition method and apparatus, where the large-area dual-frequency heterojunction solar cell thin film deposition method at least includes: placing a silicon wafer to be deposited in a process chamber of a flat-plate coupled chemical vapor deposition; introducing a process gas into the process chamber, the process gas including at least one of SiH4, H2, CO2, NO2, N2, O2, O3, Ar, and NH3; generating a plasma by exciting and dissociating of the process gas through a radio frequency power supply system fed into the process chamber; and transferring the plasma to the surface of the silicon wafer to be deposited under the electric field to form a silicon-based thin film or perform plasma interface treatment on the deposited silicon-based thin film.

Abstract: The audio processing device and method provided in the present disclosure include an audio processing device that includes a sound-producing module and an audio processing circuit. The sound-producing module includes K sound-producing units, each with different audio characteristics, where K is an integer greater than one. After obtaining the initial audio data, the audio processing circuit converts the initial audio data into K-channel target audio data, with each channel's target audio data adapted to the audio characteristics of the corresponding sound-producing unit. The K-channel target audio data is then input into the corresponding K sound-producing units, where each sound-producing unit converts the corresponding target audio data into the target audio, thereby forming reverberated sound. This approach enhances the audio quality of the audio processing.