Subjective SNR measure for quality assessment of speech coders. A cross language study.
Mamoru Nakatsui, Hideki Noda · Journal of the Acoustical Society of Japan (E) · 1994
The subjective speech-to-noise-ratio (SNR), derived from the forced-choice pair-comparisontest using the psychometric analysis procedure, has well represented overallspeech quality of speech coders in a single dimension. No significant speaker andlistener variation has been found for a wide range of waveform coders at the tests conductedin two separate sessions 14 months apart using different groups of Englishspeakers and listeners. The purpose of this study is to investigate reproducibility of themeasure conducting the same framework test using Japanese speakers and listeners.The test result shows the subjective SNR measure gives quite reliable scores evaluated in different laboratories with different language backgrounds.