Lexicon PCM92 manual Random Hall Stereo and Mono

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Random Hall (Stereo and Mono)

Random Hall is a hall effect with gradual build-up, well suited to complex sounds like orchestral music. Its reverberators change over time in controlled random ways to avoid the buildup of tinny, grainy, metallic, or other color- ations. The modulation can be noticeable and is often a desirable effect.

The early reflections are user adjustable in amplitude and delay. Some skill is needed to set useful reflection patterns. The pattern can be expanded or contracted in time using the “Delay Master” control, and the overall level of the pattern can be set with the “Early Level” control.

A hall is the principal venue for classical ensembles, but has proven to be useful for all types of music. A hall is comparatively large, with wall-to-wall distances that are typically several tens of meters. Smaller halls may be used for smaller ensembles. The characteristic sound of a hall includes very low initial reflection density, with little reflection energy before 60-100 mil- liseconds. Density buildup is more gradual, because of the larger distances between reflecting surfaces. Reverberation time is somewhat longer as well. Finally, in most halls lower frequencies reverberate longer than higher fre- quencies.

One of its charms is a bit of irregularity in the decay. In some cases (very small rooms with precisely-pitched instruments), this modulation may not be the best choice. But in general, this is a time-tested reverberator.

Plate (Stereo and Mono)

The Plate programs mimic the sounds of metal plates, with high initial dif- fusion and a relatively bright, colored sound. For this reason, they are good choices for percussion. They are designed to be heard as part of the music, mellowing and thickening the initial sound itself. The Plate sound is what many people associate with the word reverb, and it is useful for all popular music.

Dual Delay (Stereo and Mono)

Dual Delay feature two delay lines for each input channel. Each delay line has a single output or “voice.” Each voice has independent delay time (up to 2 seconds), output level, feedback control, filtering, and panning.

The feedback path includes highpass and lowpass filters. In addition to this basic voice architecture, Dual Delays feature parameters that provide expand- ed diffusion controls.

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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 Clock Source System MenuAudio Source Clock Rate Analog SetupAES Setup 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