Lexicon PCM92 manual Parameters, Bandwidth, Bass Boost Room, Bass Crossover BassXOver, BassRT

Page 39

The parameters

The PCM92 contains hundreds of presets, covering just about every possible need. But you can refine and customize any preset by adjusting its param- eters. Parameters are the building blocks within each preset that determine how it sounds and behaves.

Each algorithm contains a set of parameters, and a variety of those param- eters (sometimes from more than one algorithm) are combined to create a preset. You can edit a machine preset’s parameters via the A, B, and C knobs (which control the Soft Row; see page 11 for more information), or you can access parameters located in sub-menus via the Machine menu (see page

21 for more information about the Machine menu). You can edit a system preset’s parameters by accessing them via the preset’s sub-menus, or you can edit the parameters in the individual machine presets contained within the machine preset.

Below are all the algorithm parameters you can edit in the PCM92. Note that sometimes parameter names are abbreviated when they appear onscreen (for example, Delay Level Master may appear as DlyLvlMaster), and they may have prefixes indicating what channel they control (for example, Level may appear as RightInLvl, or OutLvl).

To see the parameters in context, refer to the charts beginning on page 41.

Bandwidth

This parameter lets you set the bandwidth of a multimode filter. Bandwidth is specified in octaves or fractions thereof.

Bass Boost (Room)

This parameter is closely tied to the Bass Crossover parameter. It controls the boost (or cut) of signal below that crossover.

Depending on the type of impulse response selected, the listener may become aware of an excess or insufficiency of low frequency output. This parameter may be used to correct the frequency response.

Bass Crossover (BassXOver)

The Bass Crossover parameter is closely tied to the BassRT parameter. It rep- resents the frequency below which BassRT has an effect. Note that there are two of these parameters in the Room algorithm. One is tied to BassRT, the other is found in the Pattern settings menu and affects the BassBoost.

BassRT

This parameter controls bass reverb time. It is closely associated with the Bass Crossover and MidRT parameters. BassRT is a multiple of MidRT that applies to signal below the frequency described by Bass Crossover. If BassRT is less than 1.0, then the low frequency part of the reverb tail will be shorter than the midrange part. If BassRT is greater than 1.0, then the low frequen- cy part of the tail is longer.

33

Image 39
Contents Page Important Safety Instructions Declaration of Conformity Warranty Overview of TCP/IP Basics Midi SysEx Implementation Introduction Page Front Panel Load BackAES/EBU In/Out Power JackRear Panel Ethernet InputPage Using the PCM92 1Single Stereo Config1SinglConcertHallStereo-FlaCongefig4896 To select a different category Category Selection Screen System Presets1ConcertHall-Flange 0Med Hall Save As Single Stereo Config Page DSP Configurations Networking Subnet Mask 255.255.0.0 Gateway Dhcp Support EnabledDhcp Network Considerations and Limitations System Menu Audio SourceClock Source Analog Setup AES SetupClock Rate Bank Dump Device IDBase Channel MachineInput Level Machine MenuTempo Source Wet Dry MixUsing Midi Soft Row Parameter Channel Usage DescriptionByte Definition Comments Bank Presets Bank #0xF0 Sysex message 0x06 Page Algorithms Hall Stereo and Mono Random Hall Stereo and Mono Resonant Chords Stereo and Mono Chorus/Flange Stereo only Page Bass Crossover BassXOver ParametersBandwidth Bass Boost RoomDelay Time Master Delay Feedback MasterDelay Level Master Delay Time Echo DelayFeedback Pan Master Echo DelayFeedback Diffusion Feedback LevelMix Wet Dry Mix Master Reflection Delay Reflection Time MasterReflection Delay Delay Time MidRTResonator Detune Resonance Tuning MasterReverb PreDelay Predelay Resonance MasterScale Signal Event FreqSignal Frequency RtHC DampingTap Slope Signal TypeSpread Early Spread Tail WidthWet Dry Mix TypePCM92 Menu Navigation Map System View and Machine View PCM92 Menu Navigation Map Stereo Hall Algorithms PCM92 Menu Navigation Map Stereo chamber and room Algorithms PCM92 Menu Navigation Map Stereo Delay Algorithms PCM92 Menu Navigation Map Stereo Effects Algorithms PCM92 Menu Navigation Map Mono Hall Algorithms  Menu Navigation Map Mono Chamber and room Algorithms Menu Navigation Map Mono Delay Algorithms Menu Navigation Map Mono Effects AlgorithmsPage 44.1 kHz 48 kHz 88.2 kHz 96 kHz PCM92 Specifications44.1K/88.2K Storage MediaFCC Midi Implementation Chart Page PCM92