Determination of the time relation between speech signals...

Details Determination of the time relation between speech signals... Determination of the time relation between speech signals...

2006-11-21

2006-11-21

Abebe, Daniel (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S500000, C704S200000

Reexamination Certificate

active

07139705

ABSTRACT:
A method of determining the time relation between an original or input speech signal (10) and an output speech signal (15) affected by time warping in a communications system, such as a VoIP (Voice over Internet Protocol) system. Wherein corresponding speech bursts (11, 12; 16, 17) of the input (10) and output speech signal (15) are located in accordance with a predefined signal property thereof. The corresponding speech bursts (11, 12; 16, 17) thus located and time aligned (10, 30) for the correction of continuous and discontinuous warping effects. A performance estimate is generated by comparing the time aligned input and output speech signals (10, 30) applying cross-correlation techniques and PSQM (Perceptual Speech Quality Measure) or PSQM+ (Enhanced Perceptual Speech Quality Measure) techniques.

REFERENCES:
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S. Tallak, et al., “Time Delay Estimation For Objective Quality Evaluation of Low Bit-Rate Coded Speech with Noisy Channel Conditions”, Proceedings of the Asilomar Conference, IEEE, pp. 1216-1219.

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