Parametric multichannel audio coding: synthesis of coherence cues
نویسندگان
چکیده
منابع مشابه
Psychoacoustically-Driven Multichannel Audio Coding
Multichannel audio rendering allows for the immersion of a listener into a rich acoustic scene, as compared to traditional stereophonic methods. Nevertheless, the excessive transmission and storage requirements of multichannel audio pose a considerable obstacle towards its widespread usage. A novel method is presented here with which a single channel of a multichannel signal is conventionally t...
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For very low bit rate audio coding applications in mobile communications or on the internet, parametric audio coding has evolved as a technique complementing the more traditional approaches. These are transform codecs originally designed for achieving CDlike quality on one hand, and specialized speech codecs on the other hand. Both of these techniques usually represent the audio signal waveform...
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The time delay for each partition is estimated as the slope of the phase difference between left and right channels Φ(k, i) = arg (X1(k, i)X ? 2 (k, i)) . Below the phase wrapping boundary the slope corresponds to phase delays, and to group delays above. Φ̂(k, i) = a1i or Φ̂(k, i) = a1i + a0 The linear regression is done in the weighted least squares sense, with weights chosen as a function of th...
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ژورنال
عنوان ژورنال: IEEE Transactions on Audio, Speech and Language Processing
سال: 2006
ISSN: 1558-7916
DOI: 10.1109/tsa.2005.854105