| 摘要 |
An audio data transmission system comprising a first device (201) and a second device (202). The first device (201) and the second device (202) are connected therebetween via an audio interface (203). The first device (201) modulates to-be-transmitted audio data by means of at least two modulation schemes to generate audio data code streams of the at least two modulation schemes, splices the audio data code streams of the at least two modulation schemes into one audio data stream, and transmits the audio data stream in a single instance to the second device (202) via the audio interface (203). The system allows implementation of rapid exchange of the data stream, greatly increases the success rate during data transmission, and reduces the probability of data transmission failure due to loss of fidelity and distortion during data exchange, thus improving the quality of the data exchange. Also provided are, for use in a mobile terminal (404), an audio transmission device (400) and an electronic signature tool (500). |
