Operation Manual

6.41 Master Recorder Trig 103
The default value of the following parameters is set at construction
• Length: the length, in meters, of the beam.
• Frequency: fundamental frequency, in Hertz, of the beam when there is no pitch modulation
signal or when its value is equal to 0. Note that the fundamental frequency is independent
of the length of the beam. The software automatically calculates the physical parameters
necessary to obtain the required fundamental frequency. The default value of this parameter
is 261.62 Hz, which corresponds to the middle C (C3) of a piano keyboard. This setting is
convenient when controlling a Marimba module with a Keyboard module.
• Decay: proportional to the decay time of the sound produced by the beam.
• Number of Modes: number of modes used to simulate the object. As the number of modes
is increased, the number of partials in the sound increases but also inevitably the calculation
load.
• Excitation point: x-coordinate, in meters, of impact point from the extremity of the beam.
• Listening point: x-coordinate, in meters, of listening point from the extremity of the beam.
Note: For more details on this module and especially the front panel controls, see the Multimode
module.
6.41 Master Recorder Trig
The Master Recorder Trig is used to trig the Master Recorder in the output stage of the Player.
Its one input expects a gate signal such as the start/stop signal from a Sequencer. When the
switch of the Master Recorder is in the gate position, recording will start whenever a low-to-high
transition occurs in the gate signal; it will stop when a high-to-low transition is received. In the trig
position, the recording will start when a low-to-high transition occurs in the gate signal and will
continue until the stop button of the Master Recorder is pressed. When the switch is in the none
position, the gate signal from the Master Recorder Trig is ignored and the Master Recorder is
controlled by using the record and stop buttons.
Typical Use
In Figure 56, a Master Recorder Trig module is used in combination with a Master Sync Input
and a Sequencer to cut a perfect loop. In this example, the Sequencer is triggered by the gate
signal from the Master Sync Input when the play button of the Master Sync module is pressed.
When it receives the triggering signal, the Sequencer sends a start signal to the Master Recorder
module followed by a stop signal when the end of the sequence is reached. In order to respond to
the signal sent by the Sequencer, remember to adjust the Master Recorder switch in the trig or
gate position depending on if you want the recorder to react to the start signal only or both the start
and stop signals. Since the Sequencer is using the clock from the Master Sync Input module,