Advanced UPMAX Menu

The Advanced parameters are included for audio experts who wish to dig deep and tweak settings for very specific applications and needs. They are not required for most users and are accordingly not displayed by default.

NOTE: Some advanced controls - specifically those relating to additional side and height channels - will be grayed out if they do not apply to the selected output format.

NOTE: To minimize the amount of vertical scrolling required when reading the control descriptions below and referencing the image of the menu, the identical figure is included twice - once here at the beginning of the section, and once again at the very end.  

Front/Surround LF Balance (1A)

Though included in the current UI, the functionality of this control has been removed and should therefore be disregarded.

Front/Surround HF Balance (1B)

This control adjusts the balance between the front channels (minus the center channel) and all supported surround channels for frequencies above the value set in the LFE Filter Frequency control. A setting of 1.0 routes 100% of the audio to the front channels and 0% to the rear. The default setting of 0.5 results in a 50/50 split.

Front/Front Height Crossover (1C)

This control adjusts the crossover point between the Front Left and Right channels and the Front Height channels when upmixing to 5.1.2, 5.1.4, and 7.1.2 formats. The crossover is very gentle, and the effect of this control is subtle. The audio spectrum in the Front Height channels is determined by a  combination of this control and the Lows in Heights control (1R).

Front Gain LF (1D)

This control adjusts the gain of the Front Left and Right channels at frequencies lower than the crossover point set in the Front/Front Heigh Crossover Frequency control (1C).

Front Gain HF (1E)

This control adjusts the gain of the Front Left and Right channels at frequencies higher than the crossover point set in the Front/Front Heigh Crossover Frequency control (1C).

Front Height Gain LF (1F)

This control adjusts the gain of the Front Height channels at frequencies lower than the crossover point set in the Front/Front Height Crossover Frequency control (1C).

Front Height Gain HF (1G)

This control adjusts the gain of the Front Height channels at frequencies higher than the crossover point set in the Front/Front Heigh Crossover Frequency control (1C).

Rear/Rear Height Crossover (1H)

This control adjusts the crossover point between the surround channels and the Rear Height channels when upmixing to 5.1.2, 5.1.4, and 7.1.2 formats.

Rear Gain LF (1I)

This control adjusts the gain of all surround channels at frequencies lower than the crossover point set in the Rear/RearHeigh Crossover Frequency control (1H).

Rear Gain HF (1J)

This control adjusts the gain of all surround channels at frequencies higher than the crossover point set in the Rear/RearHeigh Crossover Frequency control (1H).

Rear Height Gain LF (1K)

This control adjusts the gain of the Rear Height channels at frequencies lower than the crossover point set in the Rear/Rear Height Crossover Frequency control (1H).

Rear Height Gain HF (1L)

This control adjusts the gain of the Rear Height channels at frequencies higher than the crossover point set in the Rear/Rear Height Crossover Frequency control (1H).

Important: The settings of the Front Gain LF, Front Gain HF, Front Height Gain LF, Front Height Gain HF, Rear Gain LF, Rear Gain HF, Rear Height Gain LF, and Rear Height Gain HF controls have an important impact on the downmixed signal. Please read and understand the Upmixing Controls That Affect the Downmix section before adjusting these settings.  

Cycles Per Octave (1M)

The comb filter is used to separate different frequency components of the input signal to aid in steering sounds in the surround field between the front and rear channels. This control defines the number of "teeth" there are in one octave of frequency change of the comb filter.

Integer values (that is, a value that is a whole number) ensure that the harmonics generated in the upmixing process are steered to the same channel as the fundamental frequency and result in a livelier sound.

Fractional half values (that is, a value that ends in .5, including the default setting of 2.5) route the fundamental frequencies and odd harmonics to the same channel (either the front or rear), and even harmonics to the other channel (whichever is not receiving the fundamental and odd harmonics). This renders a soundfield that is more stable but consistently wide.

Minimum Comb Filter Frequency (1N)

This control sets the lowest frequency of the comb filter.

Comb Filter Gain (1O)

This control sets the overall gain of the comb filter. It can have a significant impact on the movement of audio between the front and rear channels, with higher values rendering a greater sense of depth. In nearly all cases, leaving this control at its default setting will result in the most pleasing soundfield.

Front-Rear Balance Factor (1P)

This control determines the amount of upmixed sound pushed to the surround channels and is analogous to the "Surround Depth" control in previous UPMAX versions. A value of 0 sends all audio to the Rear channels while a value of 1 sends no audio to the Rear channels. A value of 67 sends 33% of the audio to the Rear channels and keeps 67% of the audio in the Front channels.

Highs in Laterals (1Q) <<DEPRACATED CONTROL TO BE REMOVED>>

This control determines to what degree higher frequencies from the Front/Front Height Crossover and Rear/Rear Height Crossover circuits are mixed back into the lateral speakers when upmixing to 5.1.4 and 7.1.2 output formats. The audio spectrum in the lateral channels is determined by a combination of this control and the Lows in Heights control (1R).

Lows in Heights (1R) <<DEPRACATED CONTROL TO BE REMOVED>>

The control determines to what degree lower frequencies from the Front/Front Height Crossover and Rear/Rear Height Crossover circuits are mixed back into the height speakers when upmixing to 5.1.4 and 7.1.2 output formats. The audio spectrum of the height channels is determined by a combination of this control and the Highs in Laterals control (1Q).

Side/Rear Crossover (1S)

This control adjusts the crossover point of the Left and Right Side ("Mid") Surround channels and the Left and Right Rear channels when upmixing to 7.1, 7.1.2, and 5.1.4 output formats.

Side/Rear Gain LF (1T)

This control adjusts the gain of the Side and Rear channels at frequencies lower than the crossover point set in the Side/Rear Crossover control (1S) when upmixing to 7.1 and 7.1.2 output formats. A setting of 0 routes 100% of the signal to the Rear channels; a setting of 1 routes 100% of the signal to the Side channels; a setting of 0.5 sends 50% of the signal to each.

Side/Rear Gain HF (1U)

This control adjusts the gain of the Side and Rear channels at frequencies higher than the crossover point set in the Side/Rear Crossover control (1S) when upmixing to 7.1 and 7.1.2 output formats. A setting of 0 routes 100% of the signal to the Rear channels; a setting of 1 routes 100% of the signal to the Side channels; a setting of 0.5 sends 50% of the signal to each.

Height Gain (1V)

This control simultaneously adjusts the gain of all height speakers when upmixing to 7.1.2 and 5.1.4 formats.