Waldorf MicroWave XT User Manual download pdf (Page 56)

Filter 1 / 2

Sample-and-hold 12dB Low-pass Filter

The S&H-filter has a sample-and-hold (S&H) circuit with adjustable rate in front of the 12

dB low-pass filter. The S&H circuit effectively lowers the sampling rate so that the

harmonics are reflected to another frequency producing a harsh sound.

The rate of the S&H circuit is the extra parameter and appears on the

Filter 1 / 2

page as

S&H Rate

. When the S&H rate is set to maximum (127), the circuit passes the sound

untouched.

Filter 1 / 2

 If you like nice clean sounds, the S&H filters are definitely not for you.

24dB Notch Filter

This filter damps a single frequency while all other frequency are passed through

unaffected. Resonance is inaudible on this filter type as long as its setting is not so high that

the filter begins to self-oscillate.

12dB Notch Filter

Same as 24dB notch filter, but lower slopes of 12dB/octave.

Bandstop Filter

This filter type uses a 12dB high pass and a 12dB low pass in parallel. By means of the

extra parameter Bandwidth the frequency of the high pass can be increased relative to the

low pass. If Bandwidth has a value of

, this filter is identical to the 12dB notch filter. The

resonance setting applies to both filters in the same way.

Filter 2

The second filter is capable of performing a low pass or high pass. The slope is always 6dB

per octave, there is no resonance parameter and therefore no self-oscillation. You can use

Filter 2 in several ways. Since its slope is more flat than those of Filter 1, the effect filtering

has on the sound is very subtle.

Filter 2

Cutoff

0…127

Determines the cutoff frequency. Note that you can also modulate the filter’s cutoff

frequency in the modulation matrix.

Type 6

dB LP / 6dB HP

Selects the filter type.

• Use the low pass setting

6dB LP

to get a warm sound without cutting of too much

of the higher frequencies.

Cutoff Filter 2 | Type |Keytrack

102 | 6dB LP | +000%

Cutoff Env. Amount|Env.Velo| S&H Rate

69 | -23 | 096

Cutoff Env. Amount|Env.Velo| Osc2 FM

69 | -23 | 078

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Waldorf MicroWave XT User Manual Page 56

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