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MultiMerge2 User Manual
Bead Band
- Sets the size of a “band” in dB where small loudness differences that fall within this range
are deemed allowable. When loudness differences fall outside of this allowable band then appropriate
gain or attenuation is applied to control loudness. The Dead Band parameter can be effectively used to
limit the amount of small range gain variability. For example: A window setting of 4 dB indicates that
when the loudness level is measuring within ±2 dB of the target level that no further correction is
required. When the loudness level becomes further than ±2 dB from the target level then appropriate
gain or attenuation is applied.
Noise Floor -
Controls the noise floor level. Input signals below the threshold are considered too low
and are not managed by the loudness processing to avoid bringing up the noise level. Input signals
above the Noise Floor are considered valid and are managed by the loudness processing.
Attack/Rise -
Controls how quickly the processing will respond to sharp onsets in loudness level. Note:
A compressor is present after the attack time processing to catch any short-term loudness peaks, which
may pass through.
Release/Fall -
Controls how quickly the processing will respond to sharp drops in loudness level.
Frequency Shaping -
Loudness studies dating have found that the human ear is more sensitive to
different frequencies at different loudness levels. Frequency Shaping accounts for these differences by
preserving the same perceptual frequency balance as the input signal while correcting the loudness to
match a desired Target. With Frequency Compensation enabled at a medium level, signals that fall
below the Target level have more gain added to middle frequencies than higher or lower frequencies to
preserve the original spectral balance. Conversely, signals that fall above the Target level will have
middle frequencies attenuated more than higher or lower frequencies. Because Frequency Shaping
applies less gain to high and low frequencies, high or low frequency noise does not become over-
emphasized.
Output Mode
Select between In-Line and Bypass mode. In-line will process audio through the Neural Loudness
Control algorithm. Using Bypass the audio is not processed through the algorithm so no loudness
correction is made.
Meters
Measurements for Surround 5.1 and Stereo 2.0 are displayed for Input/Output Short Term Combined
Average, Input/Output True Peak, Output Correction, and Output Compression
Gain
The Left and Right, Center, LFE, Left Surround and Right Surround channel gain is adjustable from -12
dB to +12 dB and mute for the Surround 5.1
Left and Right channels are adjustable from -12 dB to +12 dB and mute for Stereo 2.0
Faults
