Onkyo L-MS30 Enjoying the Sound Effects, Dolby PRO Logic II Surround, Dolby Digital Surround

EN00_L-MS30.book Page 45 Tuesday, September 2, 2003 4:19 PM

Enjoying the Sound Effects

The surround sound of the DVD receiver enables you to enjoy the presence of a movie theater or concert hall in your room.

Before using any sound effect, make sure the configurations for Adjusting Each Speaker’s Relative Volume Balance - Test Tone and Setting the Distance From the Listening Position to Each Speaker have been set (see pages 33-34).

Following are the sound systems the DVD receiver can reproduce.

■DOLBY DIGITAL Surround and DTS (Digital Theater System) Surround

This 5.1 channel digital surround format enables you to individually play five full-range (20Hz-20kHz) channels (front left and right, center, and two surround channels) plus an LFE (Low Frequency Effect) channel for low-range effect sound. It will create a realistic sound like that heard in theaters and concert halls.

DOLBY DIGITAL Surround

Dolby Digital is compressed digital data with a maximum of 5.1- channel surround sound.

This source signal comes from DVDs that have the mark and therefore recorded for 5.1-channel output.

DTS Surround

DTS (Digital Theater System) is compressed digital data with a maximum 5.1-channel surround output that allows for an extremely high-quality sound.

Notes on DTS Surround

•If you play a DTS Surround encoded disc with the DVD receiver, or a DTS encoded disc using a digitally connected player, you may hear a noise for a short while until the DTS decoder of the DVD receiver recognizes the DTS encoded signal and starts operating. This is not a malfunction.

•If you play a DTS Surround source in fast reverse or fast forward, pause, or skip a chapter or track, noise may be heard. This is not a malfunction.

•Even when playback of the DTS Surround source stops and the DTS signal transmission ends, the DVD receiver remains in DTS mode and the DTS indicator remains lit. This is to prevent noise when you pause, fast forward, fast reverse, or skip a chapter or track of the playback source. Therefore, if the source switches from the DTS signal to a PCM (2 channel digital stereo) signal suddenly, the PCM signal may not be played. In such a case, stop playback for about three seconds, then resume playback.

■DOLBY PRO LOGIC II Surround

Opposed to Dolby Pro Logic, which had four channels (front, left, center, and surround) recorded into two channels with matrix processing and then played back in four channels, Dolby Pro LogicII uses a feedback logic circuit to have 5.1-channel surround audio (Dolby Surround, etc.) matrix-encoded into two channels and then played back in its original 5.1-channel form.

Dolby Pro Logic II provides a Movie mode designed for playing movies and a Music mode designed for listening to music.

In the Movie mode, the surround channels, which used to provide monaural output over only a narrow frequency range, now provide complete stereo output over the full frequency range.

The result is movie viewing with a realistic feel of movement. The Music mode uses the surround channels to provide a natural soundfield that cannot be provided with normal stereo output. This mode can be used with VHS and DVD videos with the mark and certain television programs.

The Music mode can be used with music compact discs and other stereo sources.

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