语音识别 Resources

Showing items tagged with "语音识别"

This project implements speech recognition by combining LPC (Linear Predictive Coding) parameters extracted from audio signals with artificial neural networks for classification. The implementation demonstrates feature extraction techniques and neural network architecture suitable for speech pattern recognition.

MATLAB 265 views Tagged

The hmm files implement Hidden Markov Model (HMM) algorithm for speech recognition under noisy conditions. Key components include: vad.m for endpoint detection using energy-based thresholding; mfcc.m for Mel-Frequency Cepstral Coefficients extraction with filter bank processing; pdf.m computing Gaussian probability density output for observation vectors; mixture.m calculating state output probabilities through Gaussian mixture modeling; getparam.m deriving forward/backward probabilities and scaling coefficients; viterbi.m implementing Viterbi algorithm for optimal path decoding; baum.m executing Baum-Welch algorithm for parameter re-estimation; inithmm.m initializing HMM parameters; train.m handling model training procedures.

MATLAB 295 views Tagged