Hitachi 60SX4K - Manual (Page 30)

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SOUND- FUNCTIONS
Press MENU, 3, ENTER, 3, ENTER to select SURROUND.
Use the CURSOR buttons to select and adjust the volume front and rear speakers.
Front volume also controls AUDIO to Hi-Fi.
• SURROUND OFF
Use this for normal stereo/mono broadcasts.
• MATRIX SURROUND
Listener is surrounded by many sound sources such as a sporting event, etc.
NOTE: Some TV systems do not transmit optimum audio channel separation that can
reduce the effectiveness of the MATRIX SURROUND function.
• HALL SURROUND
Resonant sound - Listener has the feeling of being in a concert hall.
• PRO LOGIC
Dolby Pro Logic provides for separate sound channels: left, center, right and surround.
For a properly encoded program marked the center channel contains
the dialogue for the program viewed. The left and right channels produce sound effects
that will match the action on the TV screen. For example, Dolby Pro Logic will enhance
the effect of a car viewed driving from the left side of the TV screen to the right side.
The surround channel (speakers) are placed behind the viewing area to add additional
spatial sound effects.
Dolby "phantom" mode prevents loss of center channel sound by splitting it equally to
the left and right TV speakers. In a similar way, Dolby "3 channel" splits up the surround
channel sound to the stereo system amplifier left and right speakers.
To fully benefit from Dolby Pro Logic Surround, it is recommended that the surround
speaker system be complete as shown on page 32.