Waveform subset

[Sergey Yakovlev]

How can I read a portion of waveform from a huge waveform filed saved on
disk?
The standart VI from waveform file I/O palette can read with offset, but can
not read specified amount of samples.
Is it a way to solve my problem?

[aderogba]

The method I know is to open the file as a datalog file, this will give you the flexibility you need.

[chutla]

Sergey:

in the Waveforms toolbox, there is a "number of waveform samples" vi. You can read the entire number of samples in the entire waveform and then reiterate that to read that by some divisor. For example, if you have 5,000,000 points in the wave form you can index it by 5,000,000/x, for example.