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56 User Manual
mono CF
stereo LF, RF
LCR LF, CF, RF
LRS LF, RF, Surround
LCRS LF, CF, RF, Surround
LRLsRs LF, RF, LS, RS
LCRLsRs LF, CF, RF, LS, RS (all standard surround channels)
LFE Indicates whether low bandwidth channel devoted to low fre-
quency effects is present within the bitstream.
Errors Number of received coded audio packets containing errors. The
count rolls over at 255.
Normalization
Dialnorm Indicates the average loudness of the audio stream. This is a
nominal value, set when the program is encoded, and it may
not correspond to the actual loudness of the stream.
Downmix metadata
The gain coefficients applied to the surround channels when downmix-
ing to a 2 channel or mono format are displayed as a table with two
columns: CF for the center front channel, LsRs for the surround chan-
nels. Rows indicate each coefficient:
Standard Present in all Dolby packets, used by decoders which do not
support Dolby Digital Plus and by all decoders when process-
ing Dolby Digital data. Used only when downmixing to LoRo
format; fixed values of -3 dB are used when downmixing to LtRt
format.
LoRo Present only in Dolby Digital Plus packets, used by Dolby Digi-
tal Plus decoders when downmixing to LoRo format.
LtRt Present only in Dolby Digital Plus packets, used by Dolby Digi-
tal Plus decoders when downmixing to LtRt format.
The LoRo or LtRt row may include a pref indicator to designate the rec-
ommended downmix method. This indication is present only for Dolby
Digital Plus packets, and does not appear if the LoRo and LtRt coeffi-
cients are not present or if the metadata does not specify a preference.