Method, device and system for processing audio data
A technology of audio data and processing method, which is applied in the field of information processing, and can solve problems such as sound leakage, inability to meet real-time audio processing systems, coverage, etc.
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Embodiment 1
[0052] Embodiments of the present invention provide a method for processing audio data, such as figure 1 As shown, the method specifically includes:
[0053] Step 101, acquire audio data.
[0054]The embodiment of the present invention is applied to the field of television systems as an example. Since the existing television pathways include analog pathways, digital pathways and multimedia pathways, the analog pathways include ATV Demod pathways, AV pathways, component pathways, and VGA (English full name: Video Graphics Array , Chinese: Video Graphics Array) channel, digital channel includes HDMI (English full name: High Definition Multimedia Interface, Chinese: High Definition Multimedia Interface) channel, etc.; multimedia channel includes DMP (English full name: Digital Media Player, Chinese: Digital Media Player ), etc., therefore, the audio data may be pulse code modulation (English full name: Pulse Code Modulation, PCM for short) audio data originating from multiple te...
Embodiment 2
[0073] According to the audio data processing method described in Embodiment 1, when using WDMA to capture audio data, it is necessary to initialize WDMA before obtaining the audio data. In addition, because WDMA captures the audio data of the TV channel where it is located, therefore, in the channel After switching, before capturing audio data, it is necessary to initialize the TV channel where it is located, and start capturing audio data after the initialization is completed. Specifically, such as Image 6 As shown, the processing method of the audio data that the embodiment of the present invention provides comprises:
[0074] Step 201, initialize WDMA.
[0075] like Figure 7 As shown, the initialization of WDMA specifically includes:
[0076] 201a. Set the first address of the ring buffer corresponding to WDMA.
[0077] Among them, the audio data captured by WDMA will be temporarily stored in the memory space of the starting address.
[0078] Step 201b, setting the ...
Embodiment 3
[0109] On the basis of Embodiment 1 or Embodiment 2, the embodiment of the present invention also provides a processing method for audio data, such as Figure 9 shown, including:
[0110] Step 301, acquire audio data.
[0111] Step 302. Store the audio data in a buffer, where the buffer includes a write pointer and a read pointer.
[0112] Step 303, detecting whether the difference between the write pointer and the read pointer in the buffer is greater than or equal to a preset threshold.
[0113] If it is detected that the difference between the write pointer and the read pointer in the buffer is equal to the preset threshold, then perform step 304-step 306; if it is detected that the difference between the write pointer and the read pointer in the buffer is not equal to the preset threshold, then Execute step 307-step 309.
[0114] Step 304, if it is detected that the difference between the write pointer and the read pointer in the buffer is greater than or equal to a pre...
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