Audio decoding techniques for mid-side stereo

Details Audio decoding techniques for mid-side stereo Audio decoding techniques for mid-side stereo

2006-03-02

2011-11-22

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Quadrasonic

Reexamination Certificate

active

08064608

ABSTRACT:
This disclosure describes decoding techniques for audio information encoded according to mid-side (MS) stereo encoding. The techniques involve a number of audio decoding tasks that are performed in a non-conventional order. By rearranging the order of the decoding tasks, various efficiencies can be achieved. In one embodiment, a method of decoding MS stereo audio information includes decoding a first channel of the audio information, computing an inverse modified discrete cosine transform (IMDCT) for the first channel prior to generating MS stereo information, decoding the second channel of the audio information, computing an IMDCT for the second channel prior to generating the MS stereo information, and generating the MS stereo information using the IMDCTs for the first and second channels.

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