Re: HDF/HDF5
Yes, two channels of 24 bits at 192KS/s
The .wav file is really a binary file, I think. I started
using .wav because there was read/write capability in
octave, a GPL free open source software analysis tool.
Although Windows Media Player can't play the 24 bit .wav
files, most "sound cards" have the ability to play a .wav
directly, thus you get free, and fast, DAC output. You can
use very inexpensive sound cards like EMU 0404, or 1212.
Plus, their noise floor beats those scientific cards by
quite a bit. Only caveat - no DC.
What is "Mozart Effect"?
- Robert -
On Sun, 09 Oct 2005 11:39:31 -0400
Kenneth Jacker <khj@be.cs.appstate.edu> wrote:
> macy> Doing two channels at 192KS/s, that has to be
> binary.
>
> Not sure what you're saying here ...
>
> That *you* are working with two channels sampled at
> 192KS/sec,
> and that you need to use binary format as well?
>
> macy> Did you look at .wav format?
>
> I really hadn't considered that (though some years ago I
> did work
> with such files while investigating the so-called "Mozart
> Effect").
>
> The .wav file format is more general than I really need.
> I just want
> the raw samples ... but, using those PCM-based files *is*
> an idea ...
>
> macy> Can play that back directly too.
>
> Yes, and visualize ... with the many .wav-compatible
> applications that
> are available.
>
> But as mentioned, I wish to output to a digital-to-analog
> converter
> (after first possibly applying one or another digital
> filter) with
> little pre-processing of the data's format.
>
> macy> Are you at 24 bits per sample, or only 16?
>
> 16.
>
> That's due the the DAQ board I'm using (National
> Instruments PCI-MIO).
>
>
> Thanks for your comments!
>
> -Kenneth
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