Abstract: An audio processing method for an electronic device includes a first audio file, a second audio file, and a first digital watermark to perform an audio processing method. The first digital watermark has ownership information regarding the first audio file. A first discrete audio array of the first audio file and a second discrete audio array of the second audio file are generated. A cipher code is generated using the first discrete audio array and the first digital watermark, and a second digital watermark is generated using the cipher code and the second discrete audio array. The first and second digital watermarks are compared, to confirm common ownership or otherwise of the second and first audio files.

Abstract: An audio processing method for an electronic device includes a first audio file, a second audio file, and a first digital watermark to perform an audio processing method. The first digital watermark has ownership information regarding the first audio file. A first discrete audio array of the first audio file and a second discrete audio array of the second audio file are generated. A cipher code is generated using the first discrete audio array and the first digital watermark, and a second digital watermark is generated using the cipher code and the second discrete audio array. The first and second digital watermarks are compared, to confirm common ownership or otherwise of the second and first audio files.

Abstract: An audio device includes a processor, a storage unit, an audio processing module, a silence detection circuit, a condition determining circuit, a direct current (DC) level bias circuit and an appending circuit. The audio device generates identification data, control signals, and original audio signals. The silence detection circuit detects silence segments of the original audio signals, and generates driving signals if the silence segments are detected. Then the condition determining circuit determines if the identification data needs to be appended into the silence segments according to the driving signals and the control signals, and outputs the identification data in DC signal form if the identification data needs to be appended into the silence segments. After DC voltage level of the identification data in DC signal form is biased, the appending circuit appends the biased identification data into the silence segments of the original audio signals.

Abstract: An audio device includes a processor, a storage unit, an audio processing module, a silence detection circuit, a condition determining circuit, a direct current (DC) level bias circuit and an appending circuit. The audio device generates identification data, control signals, and original audio signals. The silence detection circuit detects silence segments of the original audio signals, and generates driving signals if the silence segments are detected. Then the condition determining circuit determines if the identification data needs to be appended into the silence segments according to the driving signals and the control signals, and outputs the identification data in DC signal form if the identification data needs to be appended into the silence segments. After DC voltage level of the identification data in DC signal form is biased, the appending circuit appends the biased identification data into the silence segments of the original audio signals.