Ericsson SPR1100 Operations Instructions Page 274

  • Download
  • Add to my manuals
  • Print
  • Page
    / 300
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 273
Dolby Metadata Presets
2/1553-FGC 101 1400 Uen B
D-4
Selected Option Description
Room type
Type and calibration of the mixing room used for the final audio
mixing session.
Copyright flag Indicates if the material is copyright protected
Original bitstream flag Indicates if source is the original or a copy
Enable extended bitstream
information
Flags if additional information is available for downmixing.
Preferred downmix mode
Indicates if the producer would prefer a Lt/Rt or a Lo/Ro downmix.
Can be over-ridden by the decoder.
Lt/Rt center mix level
Indicates the required level reduction of the center channel when
mixed with the L& R channels for a Lt/Rt downmix. Similar to 'Center
mix level'.
Lt/Rt surround mix level
Indicates the required level reduction of the surround channels when
mixed for a Lt/Rt downmix. Similar to Surround mix level'.
Lo/Ro center mix level
Indicates the required level reduction of the center channel when
mixed with the L& R channels for a Lo/Ro downmix. When present
this replaces the value set for the 'Center mix level'
Lo/Ro surround mix level
Indicates the required level reduction of the center channel when
mixed for Lo/Ro downmix. When present this replaces the value set
for the 'Surround mix level'.
Dolby Surround EX mode
Flags if the stream has been encoded in 'Surround Ex'. Only used if
surround channels are present.
A/D converter type Indicates type of A/D conversion used.
Digital de-emphasis
To meet the Dolby Digital encoding algorithm specification the audio
must not have pre-emphasis applied. If the input signal does have
pre-emphasis applied, a de-emphasis filter must be applied prior to
encoding.
DC high pass filter enable
Removing the DC component can lead to more efficient encoding,
but there is a risk that signals that do not reach 100% PCM may
exceed this after filtering and therefore must be clipped.
Bandwidth low-pass filter enable
Remove high frequency signals before encoding. The filter removes
frequencies that would not normally be encoded.
Low-frequency effects low pass filter
enable
Apply a 120 Hz low pass filter prior to an encode. Should only be
switched off if it is known that there are no frequencies above 120 Hz.
Surround attenuation enable
Attenuate surround channels by 3 dB before encoding. Theatrical and
consumer mixing rooms use different levels for the surround
channels, and this can be used to compensate.
Surround phase shift enable
Apply a phase shift of 90 degrees to the surround channels. This
simplifies the decode process for producing a 'Lt/Rt' downmix.
Page view 273
1 2 ... 269 270 271 272 273 274 275 276 277 278 279 ... 299 300

Comments to this Manuals

No comments