7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
Revision 1.1.1
Page - 101
6.31.2.7. Program Mix Level
This control allows the user to author the Mix Level for the Dolby bit-stream. The
Mix Level
parameter
describes the peak sound pressure level (SPL) used during the final mixing session at the studio or on the
dubbing stage. The parameter allows an amplifier to set its volume control such that the SPL in the replay
environment matches that of the mixing room. This control operates in addition to the dialogue level
control, and is best thought of as the final volume setting on the consumer’s equipment. This value can be
determined by measuring the SPL of pink noise at studio reference level and then adding the amount of
digital headroom above that level. For example, if 85 dB equates to a reference level of –20 dBFS, the
mixing level is 85 + 20, or 105 dB. Use the slide bar to change the authored Mix Level in the Dolby
Metadata packet. The Mix Level ranges from 80 dBFS to 110 dBFS. The default value is 105 dBFS.
6.31.2.8. Room Type
This control enables the user to author the
Room Type information. The
Room Type
parameter describes
the equalization used during the final mixing session at the studio or on the dubbing stage. A
Large
room
is a dubbing stage with the industry standard X-curve equalization; a
Small
room has flat equalization.
This parameter allows an amplifier to be set to the same equalization as that heard in the final mixing
environment.
Not Indicated
Not Indicated.
Large Room X Curve
Monitor
Large Room X Curve Monitor used during final mixing.
Small Room Flat
Monitor
Small Room used during final mixing with flat equalization.
6.31.2.9. Copyright
This control allows the user to author the Copyright information for the Dolby bit-stream. This parameter
indicates whether the encoded Dolby Digital bitstream is copyright protected. It has no effect on Dolby
Digital decoders and its purpose is purely to provide information
.
Not Copyrighted
Indicates the material is not copyrighted material.
Copyrighted Material
Indicates the material is copyrighted.