Glossary

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Decay Rate (slow, medium, fast) Determines how fast a channel gates off after hold time expires. Default is medium.

Default meter The input/output displayed on the front panel LED meter when a input/output meter is not specifically selected elsewhere.

Delay A setting in the Processing window. Delay calculates the amount of signal delay (up to 500ms) based on the distance between audio source and audience and the temperature.

Device ID A number which identifies the unit when multiple units of the same device type are connected in an E-bus network. Because up to eight PSR1212s can be used in the same network, the device ID range is 0–7.

Device Type A number which identifies the type of unit. For example, a PSR1212 is device type 5.

DSP Digital signal processor.

Expansion bus Consists of two RJ-45 connectors on the rear panel of the PSR1212. An expansion bus allows multiple PSR1212s to be networked together using category five twisted-pair (10BaseT) cable.

Expansion bus reference One of the PA adapt reference options. The expansion bus reference allows you to reference an output on a networked unit.

Filter A device that passes and blocks audio signals based on user-definable requirements of the system.

All Pass A filter that provides only phase shift or phase delay without appreciably changing the magnitude characteristic. The filter produces a flat amplitude response. It is useful for matching the delay of two processing channels with different delays.

High Pass A filter that passes high signal frequencies while attenuating low frequencies. The gain or loss

High Shelving Provides boosting or attenuation of frequencies above a designated frequency. The transition between the spectrum above and below the designated frequency occurs at a fixed 6dB/octave rate. The gain or loss above the corner frequency is adjustable to +/–15dB.

Low Pass A filter that passes low frequencies while attenuating high frequencies.

Low Shelving Provides boosting or attenuation of frequencies below a designated frequency. The transition between the spectrum above and below

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ClearOne comm PSR1212 operation manual 129