2-5. Audio Signals
Digital Audio Signalscenter channel speaker
left | right |
speaker | speaker |
| sub-woofer |
surround | surround |
sound | sound |
speaker | speaker |
Dolby Digital Sound with 5.1 Channels
The DIRECTV® High-Definition Receiver will be the focal center of your home entertainment system comprising a variety of components, such as TV, DVD, VCR, etc. and external audio systems. Since digital programs being broadcast contain digital-quality audio, you can create a home theater by sending audio signals from the DIRECTV HD Receiver to your audio system externally. HD digital signals use the Dolby Digital audio encoding system - the same digital sound used in many movie theaters, on DVDs, and in many home theater systems.
When you tune to a channel, the DIRECTV HD Receiver can send signals either to a Dolby Digital decoder/receiver or to a PCM (normal digital) decoder. (* Refer to Section 3.7 Connection for Audio for making the required external connections to your system.)
GLOSSARYDolby Digital, formally known as AC-3 for Audio Coding 3rd Generation or “5.1” channel audio, is a coding technique that can provide up to five inde- pendent, full frequency response audio channels (three in left, center, and right, two in rear left and right, and one low frequency effect for a sound you can feel).