R. Salami

This paper presents a unified speech and audio codec, which efficiently combines techniques from both worlds. Expand

The application of algebraic code excited linear prediction (ACELP) coding to wideband speech is presented with a very efficient search procedure which allows for real-time implementation. Expand

This paper describes the scalable coder - G.729 based on three embedded stages: narrowband cascaded CELP coding at 8 and 12 kbit/s, time-domain bandwidth extension (TDBWE) at 14 kbps, and split-band MDCT coding with spherical vector quantization (VQ). Expand

This article describes the ITU-T Recommendation G.729 Annex A (G.729A) for encoding speech signals at 8 kb/s with low complexity. Expand

In this paper, we describe the enhanced full rate (EFR) speech codec that has recently been standardised for the North American TDMA digital cellular system (IS-136). Expand

A toll quality speech codec at 8 kb/s suitable for the future personal communications system with a complexity implementable on current fixed-point DSP chips. Expand

The GSM enhanced full rate (EFR) speech codec that has been standardised for the GSM mobile communication system provides wireline quality not only for error-free conditions but also for the most typical error conditions. Expand

Highly efficient low-rate audio coding methods are required for new compelling and commercially interesting applications of streaming, messaging and broadcasting services using audio media in 3rd generation mobile communication systems. Expand

This paper describes the application of transform coded excitation (TCX) coding to encoding wideband speech and audio signals in the bit rate range of 16 kbits/s to 32 kbps/s. Expand

We have presented new techniques for variable-rate WB speech coding employed in VMR-WB codec, recently selected as the new 3GPP2 standard for wideband speech services. Expand