speech recognition for controlor

7/29/2019 speech recognition for controlor

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Speech Recognition forControl

Hugo Moreno

ESPOCH-ECUADOR

IEEE Member
http://events.ictp.it/todayhttp://www.espoch.edu.ec/index.php?action=inicio


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AGENDA

Introduction

Speech Recognition

Application in Control Conclusions
http://events.ictp.it/today


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Introduction


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Introduction

VISION

To be a leading institution in the Top Educationand in the scientific and technological supportfor the socioeconomic and culturaldevelopment of the province of Chimborazoand of the country, with quality, relevancy and

social recognition


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Speech Recognition

speaker recognition

recognizing who is speaking

frequencies

speech recognition

recognizing whatis being said

accuracy and speed
http://en.wikipedia.org/wiki/Speech_recognitionhttp://events.ictp.it/todayhttp://en.wikipedia.org/wiki/Speech_recognition


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Speech Recognition

The process of converting a speech signal to a sequence ofwords in the form of digital data or discrete data, by means ofan algorithm implemented as a computer program

(microcontroller).


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Speech Recognition

Speech Signal Acquisition LPF AB = 4KHz 8Ks/s 8-16 bits

Speech Verification feature extraction and selection,

Poles and Zeros Correlation Levinson Durbin

Markov (HMW) DTW

pattern matching, classification.


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Speech Recognition

0 100 200 300 400 500 600-40

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Correlation

(MATLAB)

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x 104

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Signal Acquisition

Original

Pattern


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Speech Recognition

Poles and Zeros

(MATLAB)

0 0.5 1 1.5 2 2.5

x 104

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Signal Acquisition

Original

Pattern


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Application in Control

Elevator


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Speech Biometric Recognition

Used to determine the stressstatus.

Stress Control using a special kindof music.


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Control for Robot

Automatic translation

Automotive speech recognition

Court reporting (Realtime Voice Writing)

Speech Biometric Recognition Hands- free computing

Home automation

Pronunciation evaluation in computer-aided language learningapplications

Transcription (digital speech-to-text).


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Conclusions

Speech recognition involves theability to match a voice patternagainst a provided or acquired

vocabulary Speech recognition is used to make

control

Speech recognition has an acceptableaccuracy, but better accuracy impliesless speed.


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References

IEEE SIGNAL PROCESSING MAGAZINE

PROCEEDINGS OF THE IEEE

WANG Ye-Yi,Deng Li and Acero Alex, Spoken LanguageUnderstanding, IEEE SIGNAL PROCESSING MAGAZINE [16]

SEPTEMBER 2005.

CAMPBELL JOSEPH P. Speaker Recognition: A Tutorial,PROCEEDINGS OF THE IEEE, VOL. 85, NO. 9, SEPTEMBER 1997

DENG Li, Wang Kuansan and Chou Wu, Speech Technology andSystems in Human-Machine Communication, IEEE SIGNALPROCESSING MAGAZINE [12] SEPTEMBER 2005


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Thanks for your attention ..

Best Regards

Hugo [email protected]

ESPOCH-ECUADOR

IEEE Member
mailto:[email protected]://events.ictp.it/todaymailto:[email protected]

speech recognition for controlor

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