IndexL index into a table with a signal, linear interpolated

IndexL.ar(bufnum, in, mul, add)

IndexL.kr(bufnum, in, mul, add)

The input signal value is truncated to an integer value and used as an index into the table.

Out of range index values are clipped to the valid range.

bufnum - index of the buffer

in - the input signal.

See also: IndexInBetween

// indexing into a fixed table

(

{

SinOsc.ar(

IndexL.kr(

LocalBuf.newFrom([ 200, 300, 400, 500, 600, 800 ].scramble),

LFSaw.kr(2.0).range(0, 7)

),

0,

0.5

)

}.play;

)

// with mouse control

(

{

SinOsc.ar(

IndexL.kr(

LocalBuf.newFrom([ 200, 300, 400, 500, 600, 800 ].scramble),

MouseX.kr(0, 7)

),

0,

0.5

)

}.play;

)

(

// indexing into a changeable table

s = Server.local;

t = [ 200, 300, 400, 500, 600, 800 ];

b = Buffer(s, t.size, 1);

// alloc and set the values

s.listSendMsg( b.allocMsg( b.setnMsg(0, t) ).postln );

SynthDef(\help_index, { arg out = 0, i_bufnum = 0;

Out.ar(0,

SinOsc.ar(

IndexL.kr(

i_bufnum,

LFSaw.kr(2).range(0, 7)

),

0,

0.5

)

)

}).play(s, [\i_bufnum, b]);

)

b.setn(*[ 200, 300, 400, 500, 600, 800 ].scramble.postln - 30);

(

SynthDef(\help_index, { arg out=0,i_bufnum=0;

Out.ar(0,

SinOsc.ar(

IndexL.kr(

i_bufnum,

MouseX.kr(0, BufFrames.ir(i_bufnum))

),

0,

0.5

)

)

}).play(s, [\i_bufnum, b]);

)

b.free;