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Enable HDR

Defines if the bus has HDR enabled.

Refer to Using HDR for more details.

Default value: false

Threshold

Defines the minimum input level, in dB, above which the HDR window may slide.

Refer to Working with the HDR Threshold for more details.

Default value: 0

Range: -96 to 96

Release Time

Defines the rate at which the HDR window falls back to rest when the target is below the current value.

In Linear Mode (see below), it is the time in seconds it takes to drop by approximately 10 decibels.

In Exponential Mode, it is the time in seconds it takes to reach approximately 0.37 (1/e) of the difference between the target and the current value.

Refer to Working with HDR Ballistics for more details.

Default value: 0

Range: 0 to 20

Units: s

HDR Ratio

This control behaves similarly to the ratio control in an audio compressor. It is a measure of how close the HDR window follows peaks.

At very large values, the HDR window follows peaks closely, so that two sounds, one peaking at 20 dB and the other peaking at 40 dB above threshold, come out at the same level of 0 dBFS, as long as they are not played at the same time. The difference between the two is that the latter will result in an attenuation of -20 dB to sounds below threshold, while the former will result in an attenuation of -40 dB. At lower ratios, say 4, a sound peaking at +20 dB comes out at +5 dB while a sound peaking at +40 dB comes out at +10 dB. The attenuation that results on sounds below threshold is -15 dB and -30 dB respectively.

Using lower ratios is therefore useful in order to gain back “global” dynamic range for sounds above threshold that is otherwise taken away by the HDR system. The drawback is that sounds may peak above threshold, so you need to keep sufficient headroom after the HDR bus in order to avoid clipping.

Refer to Working with the HDR Ratio for more details.

Default value: 100

Range: 1 to 100

HDR Release Time Mode

Defines the behavior when the window releases to a lower value.

Refer to Working with HDR Ballistics for more details.

Default value: Exponential

HDR Window Top Output Game Parameter

Defines the Game Parameter that will receive the HDR window position.

Refer to Using the HDR Window as an Input Variable for more details.

HDR Output Game Parameter Min

Defines the minimum value that can be set on the Game Parameter.

Default value: 0

Range: -100 to 100

Units: dB

HDR Output Game Parameter Max

Defines the maximum value that can be set on the Game Parameter.

Default value: 100

Range: -100 to 100

Units: dB