Yamaha DME32 DME32 Owners Manual - Page 133

Dynamics 127 2 dB change in output level. Compression ratios above 10:1 limit signals rather than compress them. The expansion ratio is fixed at 5:1, so a 2 dB change in trigger level (below the threshold) results in a 10 dB change in output level. WIDTH-This determines how far below the threshold level expansion is applied. The +20 expander is essentially turned off when the +10 Width width is set to 90 dB. 0 ATTACK-This determines how soon the signal is compressed and expanded once the Compander has been activated. With a fast attack time, the signal is companded almost immediately. With a slow attack time, however, the initial transient of a sound passes through unaffected. Attack times from 1 to 5 milliseconds are a good place to start. Output Level (dB) -10 -20 Threshold -30 -40 -50 -60 -70 -70 -60 -50 -40 -30 -20 -10 0 +10 +20 Input Level (dB) RELEASE-This determines how soon the compressor and expander return to their normal gains once the trigger signal level drops below the threshold. If the release time is too short, the gain will recover too quickly causing level pumping (i.e., noticeable gain fluctuations). If it is set too long, the compressor may not have time to recover before the next high level signal appears, and it will be compressed incorrectly. Release times from 0.1 to 0.5 seconds are a good place to start. GAIN-This sets the Compander's output signal level. It can be used to compensate for the overall level change caused by the compression and expansion processes. DME32-Owner's Manual