Erica Synths LXR-02 Drum Machine Synthesizer - Manual (Page 41)

FILTER
BP filter 60-80 with high resonance settings gives good results.
11.4. HI-HAT
OSCILLATOR
For hi-hats, a complex, metallic noise spectrum is needed. Just use the 3 oscillators
with high frequencies and modulation amounts to get a spectrum you like.
Sometimes, a simple white noise oscillator can give nice hats too.
AMPLITUDE ENVELOPE
For hi-hats you have to set 2 decay times. One for the closed and one for the open
hi-hat. Both are quite short, but the open hi-hat decay should be longer than the
closed one. Use a very exponential slope below 10 for hat sounds.
FILTER
Use a highpass filter to remove all low frequencies. A high frequency around 120 is
used.
11.5. CYMBAL RIDE
Cymbals are similar to hats. The difference comes from the envelope and filter
settings.
OSCILLATOR
The oscillator settings can be similar to those of the hi-hat sound.
AMPLITUDE ENVELOPE
The only real difference to the hi-hat envelope is the decay time. We also use a
strong exponential slope, but a much longer decay is needed. It is also
recommended to lower the volume of the voice otherwise the cymbal sound may
be too loud.
FILTER
A bandpass filter with high resonance settings and a frequency above 110 gives
good results.
LFO
The cymbal sounds really benefit from an LFO modulation to the filter frequency.
Use a low modulation frequency and a sine wave with a gentle modulation depth
so the different strikes don't sound exactly the same and the frequency spectrum
of the sound changes a little bit over time.
11.6. BELLS
REALISTIC BELLS
Realistic bells are best achieved using FM oscillators. As long as you have a
complex noisy, metallic spectrum, you just need to add an exponential decay
amplitude envelope and a bandpass filter to get different kinds of bells. The
sample rate reducer is also very usefull to make the sound more metallic.
808 STYLE COWBELL
The 808 cowbell consists of 2 detuned rectangle oscillators sent through a
bandpass filter.
Recommended voice: drum voice 1-3.
FM PAGE
> Set mode to mix. The main and FM oscillators are now mixed together.
> Set amount to 63. This sets the mix ratio between the 2 oscillators to 50% each.
> Select a rectangle waveform.
> Set frequency to something around 78.
LXR OWNERS MANUAL 41