Audio adaptation according to usage environment and perceptual quality metrics

Authors:
B. Feiten;I. Wolf;Eunmi Oh;Jeongil Seo;Hae-Kwang Kim
Affiliations:
-;-;-;-;-
Venue:
IEEE Transactions on Multimedia
Year:
2005

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Abstract

Future audio applications will need to handle a wide variety of end-devices and networks from low quality mobile services to very high quality home entertainment services. The MPEG-21 Digital Item Adaptation standard specifies a variety of tools that aim to enhance the user experience and maximize the perceived quality of service. This paper focuses on the audio-related tools, including audio usage environment descriptions and techniques for audio resource adaptation. Additionally, subjective and objective measures are discussed in the context of bit-rate adaptation. New quality measures, brightness, cleanness, and wideness are proposed for controlling the quality of the audio transmission.