Waldorf pulse 2 Manuel d'utilisateur télécharger pdf (Page 66)

Appendix

Pulse 2 User Manual 66

Filter Cutoff Frequency

The filter cutoff frequency is a significant factor for fil-

ters. A low pass filter dampens the portion of the signal

that lies above this frequency. Frequencies below this

value are allowed to pass through without being proces-

sed.

High Pass Filter

A high pass filter dampens all frequencies below its

cutoff frequency. Frequencies above the cutoff point are

not affected.

LFO

LFO is an acronym for low-frequency oscillator. The

LFO generates a periodic oscillation at a low frequency

and features variable waveshapes. Similar to an envelo-

pe, an LFO can be used to modulate a sound-shaping

component.

Low Pass Filter

Synthesizers are often equipped with a low pass filter. A

low pass filter dampens all frequencies above its cutoff

frequency. Frequencies below the cutoff point are not

affected.

MIDI

The acronym MIDI stands for "musical instrument digital

interface." It was developed in the early 1980s so that

diverse types of electronic musical instruments by diffe-

rent manufacturers could interact. At the time a com-

munications standard for heterogeneous devices did not

exist, so MIDI was a significant advance. It made it

possible to link all devices with one another through

simple, uniform connections.

Essentially, this is how MIDI works: One sender is con-

nected to one or several receivers. For instance, if you

want to use a computer to play the Pulse 2, then the

computer is the sender and the Pulse 2 acts as the recei-

ver. With a few exceptions, the majority of MIDI devices

are equipped with two or three ports for this purpose:

MIDI In, MIDI Out and in some cases MIDI Thru. The

sender transfers data to the receiver via the MIDI Out

jack. Data are sent via a cable to the receiver's MIDI In

jack.

MIDI Thru has a special function. It allows the sender to

transmit to several receivers. It routes the incoming

signal to the next device without modifying it. Another

device is simply connected to this jack, thus creating a

chain through which the sender can address a number

of receivers. Of course it is desirable for the sender to be

able to address each device individually. Consequently,

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Waldorf pulse 2 Manuel d'utilisateur Page 66

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