Yamaha V4.0 DME Designer V4.0 Owners Manual - Page 403

Chapter 6 Component Guide Compander The compander combines the effects of a compressor and an expander. A compressor compresses signals that exceed the threshold, while the expander reduces signals that fall below the threshold. There are two compander groups, CompanderH (compander hard) and CompanderS (compander soft). Within each group, there are mono channel and stereo channel companders. Mono channel companders have one input, one output, and one KeyIn input. Stereo channel companders have two inputs, two outputs, and one KeyIn input. CompanderH CompanderS Stereo channel Mono channel Stereo channel Mono channel Double-click a component to display the component editor for it. The parameters are the same for mono channel and stereo channel components. The compander hard and compander soft differ in the compression ratio of their fixed expander. The expander compression is expressed by the straight portion of the lower-left part of the compander curve. The compression ratio of the compander hard is large. The slope is also large. The compression ratio of the compander soft is small, with a gentle compression. The parameters in the component editor are the same. CompanderH Mono component editor CompanderS Stereo component editor       Compander Curve Name  Gain Reduction Meter  Output Meter Parameter Setting Range  Threshold -54 dB to ±0 dB  Ratio 1:1 to ∞:1  Width +1 dB to +90 dB  Attack 0 to 120 ms  Release 44.1 kHz: 6 ms to 46 s 48 kHz: 5 ms to 42.3 s 88.2 kHz: 3 ms to 23 s 96 kHz: 3 ms to 21.1 s  Gain -18 dB to ±0 dB      Function Displays results graphically. The horizontal axis is the input signal level, and the vertical axis is the output level. Displays the gain reduction attenuation. Displays the output signal level. Function Sets the threshold value. Sets the compression ratio. Sets the width of the expander. Sets the attack time. Sets the release time. The setting range may very, depending on the operating frequency. Sets the output gain. DME Designer Owner's Manual 403