AES 123rd Convention, October 5-8, 2007, New York, USA
In VoIP audio conferencing, hearing is done over handsets or headphones, so through one or two ears. In order to keep the same loudness perception between the two modes, a listener can only tune the listening level. The goal of this paper is to show that monaural or diotic hearing has a quality impact on speech processed by VoIP coders. It can increase or decrease the differences in perceived quality between tested coders and even change their ranking according to the sound level. This impact on the ranking of the coders will be explained thanks to the normal equal-loudness-level contours over headphones and the specifics of some coders. It is important to be aware of the impact of the hearing system and its associated sound level
Type:
Conference
City:
New York
Date:
2007-10-05
Department:
Communication systems
Eurecom Ref:
2390
Copyright:
Copyright AES. Personal use of this material is permitted. The definitive version of this paper was published in AES 123rd Convention, October 5-8, 2007, New York, USA and is available at :
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