Add to ORKGThe combination of time-domain harmonic scaling (TDHS) and sub-band coding (SBC) provides an encoding approach which allows 9.6 Kb/s speech encoding with good communication quality. Starting from this structure, this paper focuses the improvement of earlier designs. It is shown that adaptive prediction and bit-assigment enhances the subband signal coding and, hence, the performance of the overall system. The prediction is realized by an adaptive lattice, the algorithm being GAL2. The dynamic bit allocation takes place from the step-sizes of the backward adaptive quantizers (Jayant) in each sub-band. Improvements as high as 5 dB can be achieved for the average segmented signal to noise ratio.Peer Reviewe
A subband coding system for high quality digital audio signals is described. To achieve low bit rate...
The promise of digital hardware economies (due to recent advances in VLSI technology), has focussed ...
This work describes a coder that works at bit rates of 9.6Kbits/s to 32 Kb/ s. Basically the system ...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
Abstract—In this study an approach for improving the performance of waveform coders, based on coding...
Describes the possibilities of bit rate reduction using a predictor, the coefficients of which are r...
Developments of Adaptive Differential Pulse Code Modulation (ADPCM) and Sub-band Coder for speech si...
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer S...
This project studies the method of Subband Coding as applied to high fidelity audio signals. A 32-ba...
Abstract — Speech compression is a mature technology with many applications. Over the past decade, h...
Two very different subband coders are described. The first is a modified dynamic bit-allocation-subb...
A speech coding technique that yields improved speech quality over existing 2. 4 kb/s linear predict...
This paper proposes audio coding using an efficient long-term prediction method to enhance the perc...
A subband coding system for high quality digital audio signals is described. To achieve low bit rate...
The promise of digital hardware economies (due to recent advances in VLSI technology), has focussed ...
This work describes a coder that works at bit rates of 9.6Kbits/s to 32 Kb/ s. Basically the system ...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear...
Abstract—In this study an approach for improving the performance of waveform coders, based on coding...
Describes the possibilities of bit rate reduction using a predictor, the coefficients of which are r...
Developments of Adaptive Differential Pulse Code Modulation (ADPCM) and Sub-band Coder for speech si...
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer S...
This project studies the method of Subband Coding as applied to high fidelity audio signals. A 32-ba...
Abstract — Speech compression is a mature technology with many applications. Over the past decade, h...
Two very different subband coders are described. The first is a modified dynamic bit-allocation-subb...
A speech coding technique that yields improved speech quality over existing 2. 4 kb/s linear predict...
This paper proposes audio coding using an efficient long-term prediction method to enhance the perc...
A subband coding system for high quality digital audio signals is described. To achieve low bit rate...
The promise of digital hardware economies (due to recent advances in VLSI technology), has focussed ...
This work describes a coder that works at bit rates of 9.6Kbits/s to 32 Kb/ s. Basically the system ...