Tektronix WFM6120 User Manual

Monitor Dolby-B
ased Surround Sound
3Stereo. Use 3 Stereo to monitor the Dolby Digital signal with only the left, center, and right channels. In this mode, if
there are surro
und channels present, they are mixed into the left and right channels with the surround mix level attenuation.
Phantom. When using Phantom, the center channel, if present, gets attenuated with the center mix level value and is
then added into the left and right channels.
Stereo. Stereo always creates a Lo/Ro downmix using the center and surround mix levels contained in the metadata.
The Lfe is disabled.
Mono. Mono mode will always mix down to a single center c hannel, usually by creating a Lo/Ro downmix and adding Lo to
Ro. The Lfe is disabled.
Pro Logic Listening Modes
Pro Logic listening modes perform different functions depending on what the source material is. If the source is a Dolby
Digital st
ream with three or more channels, then a surround compatible Lt/Rt downmix is created and then decoded into a
selectable number of channels. If the source is a 2/0 Dolby Digital stream, then these P ro Logic modes will do a Pro Logic
decode to produce the number of channels requested by the listening mode. If the source is PCM, then a full Pro Logic
decode is
provided regardless of the specific Pro Logic mode selected.
Pro Logic Full. Pro Logic Full will create a Lt/Rt downmix of any input with three or more channels. This Lt/Rt downmix
will then be Pro Logic decoded to produce a LCRS output where the surround channel is reduced 3dB and reproduced in
both the Ls and Rs bars.
A 2/0 encoded Dolby stream will be assumed to be Pro Logic encoded already and will be Pro Logic decoded to produce a
LCRS output. Again, the s urround channel is reduced 3dB and reproduced in both the Ls and Rs bars.
Any PCM input will be decoded the same as a 2/0 Dolby Digital input.
Pro Log
ic 3 Stereo.
Pro Logic 3 Stereo will create a Lt/Rt downmix of any input with three or more channels. This Lt/Rt
downmix will then use Pro Logic decoding to produce a center channel and provide LCR bars.
A 2/0 encoded Dolby stream will be assumed to be Pro Logic encoded already and will be Pro Logic decoded to produce a
LCR output.
Any PCM input will be decoded to provide LCRS channels where the surround channel is reduced 3dB and reproduced in
both
the Ls and Rs bars.
Pro Logic Phantom. Pro Logic Phantom will create a Lt/Rt downmix of any input with three or more channels. This
Lt/Rt downmix will then use Pro Logic decoding to produc e a surround channel and provide LCS surround channels. This
surround channel is reduced 3dB and reproduced in both the Ls and Rs bars.
A 2/0 encoded Dolby stream will be assumed to be Pro Logic encoded already and will be Pro Logic decoded to produce a
LRS output. Again, the surround channel is reduc ed 3dB and reproduced in both the Ls and Rs bars.
Any PCM input will be decoded to provide LCRS channels where the surround channel is reduced 3dB and reproduced in
both the Ls and Rs bars.
112 Waveform Monitors Quick Start User Manual

Tektronix WFM6120 Specifications

General

Brand	Tektronix
Model	WFM6120
Category	Monitor
Language	English