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poke~

Write sample values to a buffer by index

Description

poke~ allows you to write samples into a buffer~ at sample locations specified by a signal. Typically, the signal will increase in value by 1 with each sample to write successive values into successive samples (like record~). If the index signal is negative or larger than the size of the buffer~, no data is recorded.

Arguments

Name Type Opt Description
buffer-object-name symbol Obligatory. Names the buffer~ where poke~ will write its incoming samples.
channel-number int opt Sets the channel number of a multichannel buffer~ where the samples will be written. The default channel is 1.

Messages

int value/sample-index [int]
 In left inlet: Converted to float.

In middle inlet: Sets the sample index for writing subsequent sample values coming in the left inlet. If there is a signal connected to this inlet, a float is ignored.
  (inlet2) channel-number [int]
 In right inlet: Sets the channel of the buffer~ where sample values are written. The first (left) channel is specified as 1.
float value/sample-index/channel-number [float]
 Like the peek~ object, poke~ can write float values into a buffer~. Note, however, that the left two inlets are reversed on the poke~ object compared to the peek~ object.

In left inlet: Sets the value to be written into the buffer~ at the specified sample index. If the sample index is not -1, the value is written.

In middle inlet: Converted to int.

In right inlet: Converted to int.
list value sample-index and channel-number [list]
 In left inlet: A list of two or more values will write the first value at the sample index specified by the second value. If a third value is present, it specifies the audio channel within the buffer~ for writing the sample value.
(mouse) Double-clicking on poke~ opens an editing window where you can view the contents of its associated buffer~ object.
set buffer-object-name [symbol]
 The word set, followed by the name of a buffer~, changes the buffer~ where poke~ will write its incoming samples.
signal In left inlet: Signal values you want to write into a buffer~.

In middle inlet: The sample index where values from the signal in the left inlet will be written. If the signal coming into the middle inlet has a value of -1, no samples are written.

Information for box attributes common to all objects

Examples

Write into a buffer~ using either signals or numbers

See Also

Name Description
buffer~ Store audio samples
buffir~ buffer-based FIR filter
peek~ Read and write sample values