Subjective Audio Quality Trade-offs in Consumer Multichannel Audio-visual Delivery Systems Part Ii: Effects of Low Frequency Limitation
نویسندگان
چکیده
The subjective effects of controlled low frequency limitation of the audio bandwidth on assessment of audio quality were studied. The investigation was focused on the standard 5.1 multichannel audio set-up (Rec. ITU-R BS.775-1) and limited to the optimum listening position. The effect of video presence on audio quality assessment was also investigated. The results of the formal subjective test indicate that it is possible to limit the low frequency content of the centre or of the rear channels without significant deterioration of the audio quality for most of the programme material types. Video presence has small effect on audio quality assessment.
منابع مشابه
Comparison of Quality Degradation Effects Caused by Limitation of Bandwidth and by Down-mix Algorithms in Consumer Multichannel Audio Delivery Systems
The comparative effect on audio quality of controlled multichannel audio bandwidth limitation and selected downmix algorithms was examined. The investigation was focused on the standard 5.1 multichannel audio set-up (Rec. ITU-R BS.775-1) and was limited to the optimum listening position. The obtained results indicate that in case of multichannel audio systems spatial quality is less important t...
متن کاملSubjective audio quality trade - offs in consumer multichannel audio - visual delivery systems . Part I : Effects of high frequency limitation .
The subjective effects of controlled high frequency limitation of the audio bandwidth on assessment of audio quality were studied. The investigation was focused on the standard 5.1 multichannel audio set-up (Rec. ITU-R BS.775-1) and limited to the optimum listening position. The effect of video presence on audio quality assessment was also investigated. The results of the formal subjective test...
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