An SoC based HW/SW co-design architecture for multi-standard audio decoding

作者：Zhou, Dajiang^*; Liu, Peilin; Kong, Ji; Zhang, Yunfei; He, Bin; Deng, Ning

来源：3rd IEEE Asian Solid-State Circuits Conference, South Korea, 2007-11-12 to 2007-11-14.

DOI：10.1109/ASSCC.2007.4425765

• Audio decoding
• Audio standards
• CORDIC algorithms
• Decoding process
• HW/SW Co-designs
• Implementation cost
• Real-time audio
• Windows Media Audio

In this paper, we presented an SOC based HW/SW co-design architecture for multi-standard audio decoding. It is developed to support the audio standards of AAC LC profile, Dolby AC3, Ogg Vorbis, MPEG-1 Layer 3 (MP3) and Windows Media Audio (WMA). A VLSI reconfigurable filterbank based on CORDIC algorithm is developed to accelerate the multi-standard decoding process. We designed and implemented an SOC platform to verify the filterbank as an IP core. Experimental result shows that the architecture is able to perform real-time audio decoding at low frequency (typically 10.6MHz for AAC and 11.3MHz for MP3) and the implementation cost is low (44.3k gates, 34k bytes RAM and 45k bytes data ROM for 5 audio standards). The architecture is also flexible for extending support of new formats and standards.

• 出版日期2007
• 单位上海交通大学