A Real-time AAC-type Audio Codec on the 16-bit dsPIC Architecture
نویسنده
چکیده
This paper presents the design and implementation of an AAC-class digital audio decoder and associated playback system on Microchip’s 16-bit, fixed-point dsPIC microcontroller. Unlike common student “MP3-player” projects that use dedicated decoder chips, one microcontroller handles everything here including I/O, decoding and the user interface. Data read from a flash card is decoded: Huffman coding, inverse quantization, the IMDCT and overlap-add for real-time playback. All code was custom-written in assembly.
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