Digital Freqency To Analog Frequency

dswiston · 1st December 2004, 03:01 AM

Say we have a DFT of an analog signal. How would one go about figuring out what points of the DFT correspond to what frequency in the analog world. Say we know the sampling period and that the analog signal is bandlimited.

dswiston · 1st December 2004, 03:21 AM

Nevermind, I'm an idiot.

I was thinking BLT with:

analogfreq=alpha*tan(digifreq/2)

But for such a situation as I described, that was completely wrong.

1st December 2004, 03:01 AM	#1
dswiston diyAudio Member Join Date: Feb 2004 Location: Illinois	Digital Freqency To Analog Frequency Say we have a DFT of an analog signal. How would one go about figuring out what points of the DFT correspond to what frequency in the analog world. Say we know the sampling period and that the analog signal is bandlimited.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Analog or digital?	rfarn	Solid State	0	13th February 2008 04:24 AM
Digital or analog?	xplod1236	Digital Source	1	19th May 2005 02:15 AM
Analog vs. Digital XO	Seth Smith	Multi-Way	11	1st June 2004 09:33 PM
digital or analog?	electro samurai	Digital Source	0	17th February 2004 04:07 PM
Analog to Digital?	Ioannis	Digital Source	5	11th December 2001 06:52 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

1st December 2004, 03:21 AM	#2
dswiston diyAudio Member Join Date: Feb 2004 Location: Illinois	Nevermind, I'm an idiot. I was thinking BLT with: analogfreq=alpha*tan(digifreq/2) But for such a situation as I described, that was completely wrong.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)