index~

Sample playback without interpolation

Description

index~ reads data from a buffer~ (of the same name) by a signal sample index. It does no interpolation on its output. It can be used for fft-windowing applications using the right outlet of fft~ or ifft~.

Arguments

Name	Type	Opt	Description
buffer-object-name	symbol		Obligatory. Names the buffer~ object whose sample memory is used by index~ for playback.
buffer-channel-to-index	int	opt	Following the name of the buffer~, you may specify which channel to use within the associated buffer~. The default channel is 1.

Messages

(mouse)		Double-clicking on index~ 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~ object, causes index~ to read from that buffer~.
signal		In left inlet: The sample index to read from a buffer~ object's sample memory.

Information for box attributes common to all objects

Output

signal: The output consists of samples at the sample indices specified by the input. No interpolation is performed if the input sample index is not an integer.

Examples

Look up specific samples in the buffer~ using index~

Name	Description
2d.wave~	Two-dimensional wavetable
cycle~	Table lookup oscillator
buffer~	Store audio samples
buffir~	Buffer-based FIR filter
fft~	Fast Fourier transform
wave~	Variable-size wavetable
MSP Tutorial 13: Sampling - Recording and playback	MSP Tutorial 13: Sampling - Recording and playback