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Dolby Laboratories DP564 User Manual

Page 91

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DP564 Multichannel Audio Decoder

Appendix A: Metadata

A-21

Lt/Rt Surround Mix Level

This parameter indicates the level shift applied to the surround channels when
downmixing to an Lt/Rt output. Its operation is similar to the surround downmix level
in the universal metadata.

Lt/Rt Surround Mix Level Setting

1.414 (+3.0 dB)
1.189 (+1.5 dB)

1.000 (0.0 dB)

0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)

0.000 (–999 dB)

Lo/Ro Center Mix Level

This parameter indicates the level shift applied to the center channel when adding to
the left and right outputs when downmixing to a Lo/Ro output. When Extended BSI
parameters are active, this parameter is used and the Center Mix Level parameter in
the universal parameters is not.

Lo/Ro Center Mix Level Setting

1.414 (+3.0 dB)
1.189 (+1.5 dB)

1.000 (0.0 dB)

0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)

0.000 (–999 dB)