Entone Hydra II User Manual

Page 37

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Chapter

13.1

AC-3 (Dolby Digital 5.1 Channel)

Your Hydra supports AC-3 (Dolby Digital 5.1 channel). To enjoy multi-channel surround-sound, the TV
program must carry multi-channel AC-3 digital signal. Please refer to your service provider for availability of
AC-3 5.1 programs.

For details on connecting your audio system, please refer to

Section 6.1 Connecting to Audio System

If your connected TV or A/V equipment does not support AC-3, you can disable AC-3. Consult your IPTV
service providers for instructions on disabling AC-3.

You can enable or disable AC-3 for each decoder. Please refer to the following table for details of audio
output used when AC-3 is enabled or disabled.

Table 13-1 Audio Format

Audio Track

Digital Coaxial and

Optical Audio Output

RCA Audio

Output

TV OUT and

MATV OUT

AC-3
Enable

With AC-3
Track

AC-3

Down-mixed analog
audio

Down-mixed
analog audio

AC-3
Enable

Normal Audio
Track Only

PCM

Analog audio

AC-3
Disable

With Normal
Audio Track

PCM

Analog audio

AC-3
Disable

AC-3 Track
Only

Down-mixed PCM

Down-mixed analog
audio

Down-mixed
analog audio

WARNING: When connecting via the digital coaxial or optical audio output to a TV or A/V decoder that

does not have Dolby Digital decoding capability, be sure to set AC-3 off to avoid damage to
equipment.