Does LabVIEW have CCITT filter?

[Bill Choy]

Hi

I'm writing a program need CCITT filter. I have sound and vibration toolkit but it doesn't have CCITT filter. Are there anyone tried to use or implement it in LabVIEW?

Bill.

[Dr._Imad]

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=50650000000800000021AF0000&USEARCHCONTEXT_CATEGORY_0=_49_%24_6_&USEARCHCONTEXT_CATEGORY_S=0&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0

There has been a recent discusion on the implementaion of a CCITT algorithm, Refer to the above link

[JuanCarlos]

Bill,

You may be interested in this [broken link removed] discussion; If I'm not mistaken a psophometric filter is the same as the CCITT filter.

It comes down to having the correct shape of the filter and apply it to the FFT data.

Hope this helps.

Regards,

Juan Carlos
N.I.

[dsb@NI]

The Sound and Vibration Toolkit 3.1 offers CCITT filtering in the time domain or in the frequency domain. The time-domain filters support a number of fixed sample rates ranging from 4 kHz to 1 MHz.