using dynamic programming algorithm, the synthesizer is excited by a mixture of pulse sequence and random white noise,etc.The quality of the new LPC vocoder is much better than the traditional LPC-10 vocoder.This paper describes the algorithm and the hardware implementation of our new LPC vocoder...
doi:10.1007/978-1-4615-3266-8_24LEE,Y. JKluwer Academic PublishersAdvances in Speech CodingY. J. Liu.A 400-bps Speech Coding Algorithm for Real-time Implementation. Advances in Speech Coding . 1991
This paper presents the design and implementation of a digital telephone answering device with a built-in 8 kbit/s speech coding algorithm.The hardware consists of a low-cost DSP chip which performs speech compression in real-time as well as all house-keeping functions for handling the telephone...
In order to achieve this scalability, the bit ordering in the bit stream is rearranged, and the coding algorithm is partially modified, as described in detail below. [0040] Table 2 shows an example of the bit reordering of the low bit rate coder. The number of total bits in a full ...
8.Research on 8kbit/s Low Delay Speech Coding Algorithm;8kbit/s低延迟语音编码算法研究 9.The Speech Coding Algorithm (AMR) of 3G;第三代移动通信中的语音编码(AMR) 10.Implementation of Speech Coding LPC Parameter Extracting Based on FPGA;语音编码LPC参数提取的FPGA实现 11.Research on the Key Tech...
while using a low average coding rate. Thus, a novel multipulse interpolative coder for transition speech frames has been described. Those of skill in the art would understand that the various illustrative logical blocks and algorithm steps described in connection with the embodiments disclosed herein...
The real-time implementation of speech enhancement is a vital tool destined to ameliorate the speech quality and intelligibility for auditors. In this paper, a speech denoising hardware implementation is developed in order to be used in recognition, synthesis, and coding applications. So, we propose...
The accuracy of pitch and voicing data extracted from input speech is crucial to the performance of many sinusoidal coding systems. An improved algorithm for speech classification and pitch frequency determination was developed. Voicing decisions are made using an open-loop multi-feature voiced/unvoiced...
Although top-down control is constitutively present in the predicting coding implementation, our model lacks the notion that top-down processes involve specific discharge rates, and that, as recently demonstrated, they occur preferentially at a low-beta rate range12,13,17,21. The predictive coding ...
The G.729 speech codec uses the conjugate-structure algebraic code excited linear-prediction (CS-ACELP) algorithm, which is an analysis-by-synthesis algorithm and belongs to the class of speech coding algorithms known as code excited linear prediction (CELP). Therefore, the speech decoder is ...