Overview - Chapter 3

Start and End Pointers

The Start and End parameters (Parameter Mode, Page 3) serve as ÒpointersÓ which determine the section of recorded audio the Sample Buffer will play back when triggered. If you have recorded audio with the Rec parameter set to 1 SHOT (see above), you may end up with some Òempty silenceÓ at the beginning of your sample. By adjusting the Start pointer, you can have the Sample Buffer begin at the desired section of your recording when it is triggered. If, on the other hand, you have an annoying mistake at the end of an otherwise perfect recording, you can adjust the End pointer so that the Sample Buffer stops playback before the mistake occurs.

The Start pointer can be set from 0.0 ms to at least 50 ms below the End pointerÕs current setting. The End pointer can be set from at least 50 ms above the Start pointerÕs current setting to the Maximum Sample Length parameterÕs setting. Both can be adjusted in .1 ms increments.

While adjusting either the Start or End pointer values, you can trigger the Sample Buffer by pressing the [VALUE/ENTER] button. This way you can audition your changes as you make them. Note: If the Sample Play parameter is set to LOOPED and the Sample Buffer is triggered, the Sample Buffer will continue to use the same Start and End settings while it is looping playback. If you make changes to the Start and End pointers, you must press the [VALUE/ENTER] button to retrigger the Sample Buffer and hear your changes.

Play Trigger

The Play Trigger parameter (Parameter Mode, Page 4) determines how playback of the Sample Buffer will be triggered.

¥When set to ENTER, the Sample Buffer will only be triggered by pressing the [VALUE/ENTER] button while the Sample Play parameter is selected. However, even when another trigger type is selected, you will always be able to trigger the Sample Buffer using the [VALUE/ENTER] button in this manner.

¥When set to AUDIO LEFT, AUDIO RIGHT or AUDIO LEFT & RIGHT, the Sample Buffer will be triggered whenever an audio level greater than -12 dB is present at either the analog or digital inputs, depending on which is selected as the Input Audio Source.

¥When set to MIDI NOTE #, the Sample Buffer will be triggered by an incoming MIDI note message, as determined by the Note # parameter (see below).

¥When set to either ADVANCE FOOTSWITCH or BYPASS FOOTSWITCH, the selected footswitch will not perform its normal function (that of advancing to the next Program or bypassing effects, respectively). Instead, the Sample Buffer will be triggered when the selected footswitch is pressed.

Q20 Reference Manual

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