Mobile device and operation method

[0026] figure 1 It is a schematic block diagram of a mobile device according to an embodiment of the present invention. Such as figure 1 As shown, the mobile device 100 includes a sound source input interface 110 , a sound detection unit 120 , a signal processing unit 130 , a sound mixing unit 140 and a speaker 150 . Wherein, the mobile device 100 can receive music signals in digital format through the audio source input interface 110 , and can play the music signals through the speaker 150 , so as to provide users with audio-visual entertainment enjoyment.

[0027] During the process of playing the music signal, the mobile device 100 can also detect the ambient sound from the surrounding sound sources through the sound detection unit 120 . In addition, the sound detection unit 120 converts the detected ambient sound into an external sound signal. Furthermore, the signal processing unit 130 analyzes the external sound signal, and determines whether to activate a sound mixing m