Round-up of acquisition speed of USB-9233 4-port 24-bit device

[Midlothian]

What difference does that make, if N is an Integer it will start with "1" and the series is far more sensible?

Your response in no manner addresses the incompatibility problem of the S&V Toolkit with the 9233.

The recorder has been corrected in the development release fron NI, but it now requires some compatible sub-vi's for reading the file back into post-analyser vi's.

Message Edited by Midlothian on 11-15-2006 02:40 AM

[Midlothian]

I see the difference; supported sample rates offer further subdivisions at 100kS/s /(3,5,7,9,11....)

but none of these extra choices will play back or provide analysis using the S&V Toolkit VI's that looks for 44100Hz etc.

The complete list of 9233 sampling frequencies:

2.000 2.381 2.941 3.846 5.556 10.000 33.333

2.083 2.500 3.125 4.167 6.250 12.500 50.000

2.174 2.632 3.333 4.545 7.143 16.667

2.273 2.778 3.571 5.000 8.333 25.000

Message Edited by Midlothian on 11-15-2006 09:34 AM

[dsb@NI]

Please update the attached subVIs to write and read WAV files with arbitrary sample rates. As of LabVIEW 8.0, the LabVIEW Sound API added support for writing and reading WAV files with arbitrary rates. In the next release of the Sound and Vibration Toolkit, the examples will be based on the now current API. These VIs do not check that your sound card supports arbitrary samples rates. The attached VIs do not resample the data. If you need to resample the waveform data to a sample rate supported by your sound card, repost to the discussion forums and the community can certainly help. Thanks for using the discussion forums, and please continue to use the discussion forums to exchange information and provide feedback.

[duncan carter]

I made the comment about the sampling frequencies simply to provide correct, complete information about what is available from the 9233.  I have no info on the S&V toolkit because I do not have it or use it.  For my own applications which require integral powers of 2 sampling rates ( 64, 128, ...,32768, 65536), I use the interpolation functions available for CVI and getting the proper input or output sampling rates is not an issue.   Except for 50 KHz (65536), the sampling rates that I use are all 100 kHz/(3*n).

[Midlothian]

Doug,

Thank you. The new "svx_Snd Read Waveform.vi" works well for the SV examples that I have tried. The NI sales team sold this as an integrated and compatible set of hardware and software. Is there a forecast date for the next release of the SV Toolkit?

Duncan,

I am sorry if I reacted unkindly to your post. It was mainly from being anxious to get a quick NI reply in order to complete the developed tools for production test.

I have had to explain this problem and the long delay in providing a deployed suite of tools without any forecast form NI (despite daily telephone calls to support).

Thank you both.

[dsb@NI]

Happy to hear that the VIs are working for you. I cannot forecast the date of the next release. If you are interested in joining the beta program, you can contact me by email at doug.bendele@ni.com