FXpansion DR-008 - Manual (Page 24)

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4.3.4 809 Kick
The 809 Kick module is modelled on the classic Roland
808 and 909 drum boxes. Frequency’ controls the base
pitch; ‘Sweep’ controls the amount of pitch envelope;
‘Dirt’ adds harmonic noise to the signal; ‘Click’ controls the level of the initial
attack click; ‘Decay’ and ‘Release’ control how quickly the sound dies away.
4.3.5 809 Snare
A snare drum based on the circuitry used in the
classic Roland drum boxes. Parameters are tone
(controls the frequency of the main oscillator), Noise (controls the ratio of the
noise generator to the tuned oscillator), Filter (similar to the ‘Snappy’ parameter
on the 808 and 909), and Decay (controls the amplitude decay time).
4.3.6 808 Hat
808 Hat is, as you might expect, a hi-hat model based
on the TR-808. It uses a set of tuned pulse oscillators
to generate a complex metallic tone, and then passes
the signal through a bandpass filter and envelope generator. You can change
the sound from closed hi-hat to open by adjusting the Decay parameter.
4.3.7 HX-Bass
HX-Bass uses the same algorithm as ‘The Eights Bass’
(see above), but with the addition of a distortion unit
and some internal fine-tuning to provide a harder, more
aggressive bass drum sound, suitable for hard-house and other styles requiring
seriously punchy bass drums. The distortion unit is a ‘swept waveshaper’, with
positive and negative distortion, and increasing or decreasing distortion level.