论文信息 - Card-sized portable audio player using high quality audio coding technology TwinVQ

Card-sized portable audio player using high quality audio coding technology TwinVQ

This paper presents an audio player using TwinVQ, an advanced high quality coding technology, which can compress 44.1 kHz sampled audio data at a very low bit rate of 40 kbit/s/ch. The player is business-card-sized of 10 mm thickness, and has practical performance with low power consumption.

Takehiro Moriya | Takao Kaneko | Tetsuya Takahashi | Takashi Morita | Toshiaki Shimoda

[1] Tomohiro Hase,et al. Full audio software solution for a 16-bit DSP core for digital audio decoder LSI , 1999 .

[2] John Princen,et al. Analysis/Synthesis filter bank design based on time domain aliasing cancellation , 1986, IEEE Trans. Acoust. Speech Signal Process..

[3] Takehiro Moriya,et al. High-quality audio-coding at less than 64 kbit/s by using transform-domain weighted interleave vector quantization (TwinVQ) , 1995, 1995 International Conference on Acoustics, Speech, and Signal Processing.

[4] Takehiro Moriya. Two-Channel Conjugate Vector Quantizer for Noisy Channel Speech Coding , 1992, IEEE J. Sel. Areas Commun..

[5] Akihiko Sugiyama,et al. A new implementation of the Silicon Audio Player based on an MPEG/audio decoder LSI , 1997 .

[6] Jason Kridner,et al. A programmable DSP solution to a solid state audio player , 1999, 1999 Digest of Technical Papers. International Conference on Consumer Electronics (Cat. No.99CH36277).

[7] M. J. Narasimha,et al. On the Computation of the Discrete Cosine Transform , 1978, IEEE Trans. Commun..

[8] A. W. Johnson,et al. Adaptive transform coding incorporating Time Domain Aliasing Cancellation , 1987, Speech Commun..