Audio Mode - Topfield TRF-7170 User Manual

4.1 Video and audio settings 21
You cannot fully enjoy wide-screen programmes with your
normal-screen television as the above figures show. The left
figure shows a normal picture displayed in the normal screen.
To watch wide-screen programmes in the shape like the cen-
tre figure, set the Display Format option to Letter Box. Wide-
screen pictures then will be reduced to fit to the width of the
normal screen. Otherwise, to watch them in the shape like the
right figure, set it to Center extract. Then wide-screen pictures
will be cut out on the left and right sides equally to fit to the
width of the normal screen.

4.1.3 Audio mode

Basically, there are two audio sources as you can find two audio
sockets on the back panel of the digital receiver. You can enjoy
only one source or both of them in either stereo or mono. Set
the Sound Mode option as you desire.
Apart from this setting, you can change the sound mode with
the button. See §5.2.4 for a detailed description.
The digital receiver can output two types of digital audio sig-
nals via the S/PDIF output. One is an encoded signal, and
the other is a decoded signal. If you have the digital receiver
linked to your audio-video receiver via the S/PDIF output, you
have to set the Dolby Digital option to On, which means that the
digital receiver will output encoded Dolby Digital audio with-
out decoding so that your audio-video receiver can decode it.
Otherwise, set it to Off, then the digital receiver will output
decoded Dolby Digital audio, scaling it down to two channels.