Lexicon PCM 80 RefLvl L&R, RefDly L&R, EkoFbk L&R,EkoDly L&R, PstMix, PstGld, Pst Mix, GldResp

The Algorithms and Their Parameters

RefLvl L&R, RefDly L&R

These controls provide pre-echoes to the left and right channels. The maximum range for Inverse effects is 800ms. In all other effects it is 1.2 seconds. Press Load/✱ to cycle through the selections.

EkoFbk L&R,EkoDly L&R

Available in the Plate, Chamber and Infinite algorithms, these controls provide a pre-echo of 1.2 seconds maximum to the left and right channels, with feedback. Press Load/✱ to cycle through the selections.

PstMix, PstGld

In the 4-Voice Algorithms, these controls adjust a pair of delays after the reverb. Press Load/✱ to cycle through the selections: PstMix, Pst Dly L&R, GldResp and GldRange.

Pst Mix

In the 4-Voice Algorithms, this parameter controls the mix of the reverb audio with the post delayed reverb audio (0-100%).

Pst Dly L&R

In the 4-Voice Algorithms, these parameters control the time of the post delay. The available range of 0-682ms can produce a variety of pitch shift, flange, or stutter effects on the reverb audio. (Expanding PCM 80 memory will extend this range to 1365ms.)

GldResp

In the 4-Voice Algorithms, this parameter controls the response of the glide of the post delay. The range is 0-100, with a typical default setting of 50. This setting provides a good, real-time glide. Changing a delay time from 0 to 100 ms with a glide response of 0, causes the glide delays to take a minute or more, allowing subtle changes in delay times and echoes with no noticeable pitch shifting. A glide response of 100 is ultrafast, causing high speed pitch shift, and even chirping effects with large delay time changes.

GldRange

In the 4-Voice Algorithms, this parameter controls the range over which changes to the post delay time will be performed as a glide. For example, if GldRange is set to 100ms, and the PstDly L and R times are varied over a range of 100ms, those delays will glide smoothly from one delay time to another. Suddenly changing the delay time to a greater value, such as 200ms, will cause the audio delay to change instantly to the new time without gliding. The available range is 0-682ms, with 0 causing all delay time changes to be "instantaneous", and 682 causing all delay time changes to glide. (Expanding PCM 80 memory will extend this range to 1365ms.)

Rvb Time cont'd.

You can set and display delay val- ues in units of time, or with tempo values. Press Up and Tempo simul- taneously to toggle between these two options. When time units are selected, delay times are set and displayed in milliseconds (From 0ms to the maximum available delay for that parameter). When tempo val- ues are selected, delay values are set and displayed as a ratio of ech- oes to beats (from 24:1 to 1:24). This will automatically synchronize the delay to the current tempo (MIDI, Internal, or TAP — see Tempo Mode in Chapter 2.) For example, a delay setting of 1:2 (1 echo for every 2 beats) will produce half-note delay rhythms synchronized to the current tempo.

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