This operator returns a sample value in one of the 4 input CHOPs connected to the Channel VOP. The sample may be in any channel, at any time.
If the queried sample is floating point, it is linearly interpolated.
A value from 0 to 3 representing one of the 4 input CHOPs connected to the Channel VOP.
The Channel Name to query.
The Sample Index to query or -1 to query the current sample.