Lexicon MPX 110 - REV 1 Manual page 49

Program Descriptions
DELAY, ECHO
Delays and echoes repeat a sound a short time after it
first occurs. The simplest (and oldest) delay effect is tape
slap - a single repeat about 100ms after the original
sound. Tape slap was often used on Elvis Presley's voice
and rockabilly guitar tracks.
Tape slap becomes tape echo when the output of the
tape is fed back into the input (feedback). This turns a
single repeat into a series of repeats, each a little softer
and a little darker than the last. This darkening is
characteristic of the analog tape recording process.
Digital delays do not have this characteristic; each repeat
has the same exact timbre. For digital delays, loudness is
the only difference from repeat to repeat.
Tape echo and digital delay are both useful, but
different. Tape echo is warmer, allowing the original
sound to distinguish itself. Digital delay presents a
"perfect" copy of the original sound.
The Delay and Echo variations include mono (5.5
seconds), stereo (2.7 seconds), and 6-voice multi-tap
4-16
effects. Each program can be used for tape echo or
digital delay effects.
When the Adjust knob is set to a
value between 12 and 5 o'clock,
tape echo effects are produced. Each
repeat is darker and softer. When the
Adjust knob is set to a value between
7 and 12 o'clock, digital delay effects are produced. Each
repeat is the same timbre, but softer.
In variations 1 to 8, the Adjust knob sets the amount of
feedback with an increasing number of repeats as the
setting is increased. Delay time is set with Tap. Each
program is preset with a different rhythm. In
variations 9 to 16, the amount of feedback is preset and
the Adjust knob determines the delay time.
With all Delay and Echo effects, note the way the repeats
fall rhythmically to the beat. The most effective Delay
and Echo patterns are those that lock with the tempo of
the music.
Lexicon
MIN
Delays Echoes
MAX MAX