User manual LEXICON LXP-5

[. . . ] However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment OFF and ON, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient the receiving antenna Relocate the computer with respect to the receiver Move the computer away from the receiver Plug the computer into a different outlet so that the computer and receiver are on different branch circuits. If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the Federal Communications Commission helpful: "How to identify and Resolve Radio/TV Interference Problems. " This booklet is available from the U. S. [. . . ] Patching allows you to create sounds and effects that change dynamically in response to realtime performance. To exploit the full potential of the LXP-5's patching abilities, it is helpful to understand which parameters control different aspects of an effect--and what, in fact, each effect is. If you are already familiar with these, you may want to skip ahead to the next section where we discuss patching on the LXP-5. Creating Sounds and Effects Sounds have distinctive characteristics which make them recognizable to us. It is no surprise then that an analysis of the sound waves generated, for example, by a piano can be readily distinguished from those generated by a wind instrument. The simulation of effects is more concerned with our perception of sounds and, generally, requires synthesis of the environment in which sounds occur -- effects can create the impression of a piano playing in a padded cell, for example, or in a concert hall. From the moment a sound is generated and begins to travel (at the rate of one foot in about . 9 milliseconds), it begins to change -- merely passing through the air absorbs some of its energy. In the real world, sounds are distorted in a variety of ways between the time they occur and the time it takes them to reach our ears. They bounce off of near and far surfaces, each of which absorbs some of their energy and reflects them in various directions. Sounds seem to change in pitch when generated by moving objects as they approach and recede from us. Our perception of sounds changes as we approach their source, and as we hear them in different settings. Even the difference in the amount of time it takes a sound to reach our two ears contributes to the audio clues we use to identify sounds and to accurately locate their sources. They are designed to be heard as part of the music, mellowing and thickening the initial sound itself. The plate sound is what most people used to associate with the term "reverb", and it is useful for all popular music, particularly percussion. The LXP-5 has a Plate algorithm dedicated to these effects. 4-2 Creating Sounds and Effects Vibrato is the effect produced by small, regular variations in a sound's pitch; guitar vibrato, for example, is created by alternately stretching and relaxing the strings. The LXP-5 can create automatic regular vibrato for a single instrument, or mix of sounds, by means of sine wave modulation (LFO) of Glide Delay or Pitch fine. Personal control of the rate of vibrato can be created by patching an external foot pedal to the LFO. Short delays (5ms) should be used with no feedback, and 100% delayed sound fed to the output. Moderate depth is more natural sounding, especially with realistic rate settings. (Both depend on the instrument and the music. ) True doubling is done by having a performer overdub a performance on a different track of a multitrack recorder. When the "takes" are synchronized, the normal variations in each performance provide enhancement -- the effect is to "thicken" vocal tracks. Synthetic doubling combines the original sound with a delayed version (30ms) in order to make a single performer sound like two or more. The illusion of double tracking can be greatly improved by introducing a small amount of pitch vibrato (modulation of Glide Delay or Pitch fine), particularly if some envelope follower modulation (InLvl) is combined with sine wave modulation (LFO). [. . . ] Any error states which are not covered here should be referred to Lexicon Customer Service. In a low voltage, or "brown-out" condition, the LXP-5 will freeze in its current state. When power returns to a normal level the unit will reset itself as though it had just been powered on. After the initial power up display message, the unit will return itself to the state it was in when the power dropped. [. . . ]