SPEAKER VARIABILITY COMPENSATION BY INPUT ADAPTATION

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NEZHADGHOLI ISAR; SEYYED SALEHI SEYYED ALI

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Seminar Paper

Paper Information

Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Year:2004 | Issue:11

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Title

SPEAKER VARIABILITY COMPENSATION BY INPUT ADAPTATION

Author(s)

NEZHADGHOLI ISAR | SEYYED SALEHI SEYYED ALI

Keywords

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Abstract

ACOUSTIC VARIABILITY ACROSS SPEAKER IS ONE OF THE CHALLENGES OF SPEAKER INDEPENDENT SPEECH RECOGNITION SYSTEMS. IN THIS PAPER AN INPUT ADAPTATION METHOD IS PROPOSED TO COMPENSATE THE EFFECT OF THIS VARIABILITY. THE MODEL USED HERE IS A TIME DELAY NEURAL NETWORK (TDNN). THE TDNN IS TRAINED BASED ON SPEAKERS IN TRAIN SET. AMONG THESE 71 SPEAKERS, THE BEST ONE (WITH HIGHEST PHONE RECOGNITION ACCURACY) IS SELECTED AS "REFERENCE SPEAKER". THEN USING BACK PROPAGATION ALGORITHM, ALL SPEECH SIGNALS IN TRAIN SET ARE ADAPTED TO FIT THIS SPEAKER'S SPEECH SIGNAL AND A NEURAL NETWORK IS TRAINED BASED ON ADAPTED DATA. TO EVALUATE THE PERFORMANCE OF THE TRAINED NETWORK, TEST SIGNALS RELATED TO 30 SPEAKERS ARE ADAPTED TO REFERENCE SPEAKER, EXACTLY THE SAME AS TRAIN SPEAKERS. BY IMPLEMENTING THIS METHOD AND COMBINING THE RESULTS OF ADAPTED AND UNADAPTED NETWORKS REGARDING MAXIMUM CONFIDENCE LEVEL, 2.6% IMPROVEMENT IS GAINED IN PHONE RECOGNITION ACCURACY.

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APA: Copy

NEZHADGHOLI, ISAR, & SEYYED SALEHI, SEYYED ALI. (2004). SPEAKER VARIABILITY COMPENSATION BY INPUT ADAPTATION. IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. SID. https://sid.ir/paper/906369/en

Vancouver: Copy

NEZHADGHOLI ISAR, SEYYED SALEHI SEYYED ALI. SPEAKER VARIABILITY COMPENSATION BY INPUT ADAPTATION. 2004. Available from: https://sid.ir/paper/906369/en

IEEE: Copy

ISAR NEZHADGHOLI, and SEYYED ALI SEYYED SALEHI, “SPEAKER VARIABILITY COMPENSATION BY INPUT ADAPTATION,” presented at the IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. 2004, [Online]. Available: https://sid.ir/paper/906369/en

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