Real-time implementation of speech coding algorithm requires the DSP code to be highly optimized and the underlying hardware to be fast. This paper presents the results obtained from multi-level optimization of ITU-T G.729A low complexity speech codec on an embedded DSP platform. The ...
Although the Hammerstein model is formed from sim- ple linear and nonlinear substructures, the coefficient de- termination algorithm gives different weights to the linear and nonlinear coefficients, computed with different artifi- cial residuals. The true residual output from the Hammer- stein model is...
11.Research on the Key Technologies of Adaptive Low Bit Rate Speech Coding;自适应低速率语音编码关键技术研究 12.Research and Simulation of Speech Coding Algorithm Based on MELP;混合激励语音编码算法的研究与实现 13.Research on the Speech Coding of MELP and Its Optimization Based on DSP Platform;MELP...
These metrics measure the similarity between the new data point and the training examples, and the algorithm selects the closest match as the predicted output. This approach is commonly used in image recognition and natural language processing tasks. One of the main challenges in one-shot learning...
3.This paper mainly researches how to use the fixed-point DSP chip ADSP2181 of ADI Company to realize speech codec algorithm over VoIP.本论文就是基于ADI公司的定点DSP芯片ADSP2181来实现VoIP中的语音编解码算法。 3)speech coding and decoding语音编解码 4)voice CODEC语音编解码 1.Furthermore, a sche...
Digital signal processor is widely used in speech coding and decoding process. This paper after introduced TMS320C50 fixed point DSP chip and the algorithm of ITU-T G.723.1 briefly, addressed the implementation of G.723.1 codec on TMS320C50. Some key des
ACRcould dynamically adjust the speech coding algorithm used based on the current user environment. For example, the trade-off between speech and error-correction bits could change in response to current radio channel conditions, as in the 4.7 to 12.2 kbps GSM-AMR cellular algorithm, allowing high...
This optimization problem can be posed as a linear programming problem and can be solved using an interior-point algorithm [2]. The introduction of the regularization parameter γ in (2) is inti- mately related to the a priori knowledge that we have on the co- efficients vector {a k ...
scope still remains for optimization of the decoding algorithm; with further language model improvements and, when mitigating the effect of within-day non-stationarities, we were able to reduce word error rate to 11.8% in offline analyses. Finally we showed that ventral premotor cortex (area 6v...
(e.g., weights associated with the recursive model or GRU network can be changed) and the training can continue. Accordingly, the past signal samples (e.g., sampled audio stream5) can be ground-truth signal samples in a teacher forcing algorithm. The objective function eqn. (10), ...