Classe Audio SSP-800/CT-SSP owner manual Dolby Pro Logic DTS Neo6 Dolby Volume

Dolby Pro Logic IIx

DTS Neo:6

Dolby Volume

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Dolby Pro Logic IIx Music mode has three user-adjustable parameters:

•Panorama presents a wider, deeper front soundstage. The effect is somewhat signal-dependant, meaning that it is more pronounced with some recordings and less so with others. With a good recording, however, the effect can be quite dramatic. Panorama is active when the button is highlighted.

•Center Width determines how much of the center-channel information is allowed to remain in the left and right speakers. A low setting places all of the information that creates a phantom center image in a normal stereo system into the center channel speaker instead (sometimes referred to as a “hard” center channel). A high setting leaves this information in the left and right speakers, fading out the center channel speaker. Intermediate settings provide a great compromise between the seamless spaciousness of a great stereo system and the wide listening area of a multi-channel system, where you don’t need to be in the “sweet spot” to hear a center image.

•Dimension shifts the overall balance of the processing towards the back of the room. In very “dry” recordings lacking recorded ambience, a higher dimension setting helps to restore a sense of space to the reproduced sound. In extremely “wet” recordings with lots of ambience, you may want to reduce the dimension setting to avoid excessive or distracting spaciousness.

The only user-adjustable parameter for DTS Neo:6 Music mode and ES Music mode is the center width control. It functions in a similar manner to the center width control for Dolby Pro Logic IIx.

Dolby Volume can be used to maintain the same relative perceived volume across multiple sources without having to manually adjust the volume control. It is especially useful when used with a set top box to maintain consistent volume levels across different television channels. For this reason, we have made the feature selectable by input, so you may engage it automatically whenever you watch TV but not when watching a Blu-ray, for example. The two parameters accessible on the Dolby Volume setup page are the leveler and modeler.

The leveler is used to reduce perceived differences in volume level. It can be switched off or set to low or high. The low and high settings reflect the relative aggressiveness to which the algorithm will be applied to achieve volume leveling, with high being the mode with the least difference perceived in volume level. The modeler works independently to apply frequency response corrections based on the output level. These corrections are based on the Fletcher-Munson curves describing the relationship between our hearing sensitivity at various frequencies and the sound pressure level of those frequencies. In other words, the modeler applies different volume contours at different volume settings. If you find the corrections too aggressive, you can simply leave the modeler switched off.