Lambda Mode Examples: Lambda Patches
Predefined functions on “lambda” mode may not always be adapted for higher- order processes. Patch boxes can also be set on “lambda” evaluation mode : they can represent more flexible functional arguments.
Any patch designed to process data can be used as a lambda function and perform its process in a higher-order function.
Example
This patch converts a frequency (Hz) in a midicent value and rounds it to the closest fraction of a tone expressed in midicents. Note that a tone represents 200 midicents.
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The frequency value is assigned to the first input.
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The fraction is defined in the second input.
In this case, 479Hz = 7048. This value is rounded to the closest 1/4 tone, that is, 200/4 = 50.
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The same patch box can be used on lambda mode with mapcar in order to process a list of input values. Mapcar applies a function to the items of one or more lists, successively.
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The mapcar function
References :
Contents :
- OpenMusic Documentation
- OM User Manual
- OpenMusic QuickStart