Waves IR-1, IR-L, IR-360 manual More about Reverb Damping

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LOW FREQUENCY DAMPING RATIO: Range: 0.10 to 2.00; Default: 1.00

This control defines the ratio by which the frequencies below the Low Damping Frequency will decay in relation to IR’s general Reverb Time. Values of less than 1.00 are shorter than the IR’s Reverb Time, and values greater than 1.00 are longer than the IR’s Reverb Time.

LOW DAMPING FREQUENCY: Range: 16Hz to 1600Hz; Default: 600Hz

This defines the frequency below which the Reverb time is controlled by the Low Damping Ratio Control.

HI FREQUENCY DAMPING RATIO: Range: 0.10 to 2.00; Default: 1.00

This defines the ratio by which the frequencies above the Hi Damp Frequency will decay in relation to the IR’s Reverb Time. Values of less than 1.00 are shorter than the IR’s Reverb Time, and values greater than 1.00 are longer.

HI DAMPING FREQUENCY: Range: 1000Hz to 21000Hz; Default: 2500Hz

This defines the frequency above which the Reverb time is controlled by the Hi Damping Ratio Control.

MORE ABOUT REVERB DAMPING

Damping is the frequency response of a room’s reverberation. This information is captured in the Impulse Response. The total decay time of a room might be 2 seconds, but high frequencies might have a decay time of 1 second. In this case, the high frequencies would have one-half the total time. This can be expressed as a Ratio. For this example, the HF ratio would be 0.5 (that is, 2 seconds multiplied by 0.5 = 1 second). A room with hard, reflective walls, such as a bathroom with tiles, can have a HF ratio greater than 1, giving longer decay times (and a very bright sound).

HF damping is the reduction of reverberation time at high frequencies due to absorption of high frequencies by the air and absorption in the walls. Generally speaking, this high frequency reduction in reverberation time is necessary to avoid a very splashy or sibilant sound. The degree of HF damping actually changes in real rooms according to furnishings, audience size, air temperature and humidity.

•Typical HF damping frequencies may be between 4 and 7 kHz.

•Very dry air increases HF damping. Stone walls, such as in many churches, give less HF damping than do wooden or furnished rooms.

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Contents User’s Guide Table of Contents Waves IR-1 software guide page 3 Synthetic Digital Reverberation IntroductionPerfect Hybrid Sampled-Acoustics Convolution ReverberationIR Library Impulse ResponsesPage Virtual Acoustics Devices and Synthetic Sampled AcousticsImport Impulse Response from File… Import Sweep Response from File…Tips for Sampling an Acoustic Space SET-UP Page About the IR-360 Channel Configuration # of ConvolutionsWaves IR-1 software guide page 13 Waves IR-1 software guide page 14 Waves IR-1 software guide page 15 About the IR-L Reverb Time Latency Offline Calculation indicator IR-1AND IR-360 Controls and Displays Reverb Time Reverb Control Parameters Wet Properties Direct Signal Reverb Tail Latency Reverb Envelope Offline Calculation Indicator More about Reverb Damping Reverb EQ High Shelf Filter This control is only available in the Efficient components Toolbar WaveSystem Controls IR-360 ControlsLoading Impulse Responses Importing Impulse Responses SavingIR Info and Properties Page System Requirements CPU Mode Switch IR-1 Htdm
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