Search found 12 matches

Great setup! A practical instrument you can explore for a long time.

Some students working with Dan Overholt at Aalborg University in Denmark are finishing up a controller in a guitar neck using my capacitive multi-touch sensor idea. For audio interfaces to run the se ...

Shameless bump with recent developments.

Some students working with Dan Overholt at Aalborg University in Denmark are finishing up a controller in a guitar neck. For audio interfaces they are us ...

Are you sure about multiplying 2 sinusoid that are 180 degrees out of phase giving no signal? If you were summing them sure.

Oops, I was thinking of addition.

I did a simulation and my filter doesn't seem sensitive to phase differences between the carrier and pickup input. I doubt your FFT would be either.

In your demodulator, you are multiplying the ...

OK, if you want that kind of update rate, but is it necessary? I feel that anything above 100 Hz is well beyond the requirements of the application.

Of your application maybe! Think of a MIDI ...

Nicholas, you certainly do have some filter tricks up your sleeve! Your solution is very clever and uses building blocks I hadn't considered. thank you for writing it up so clearly. I will have to ...

The test signal you want to look at is a sum of eight sine waves of the frequencies you mention. The amplitudes of the sines can vary smoothly, but if you make them random, you have to lowpass filter ...

Making the antennas is probably the hardest part of the project. It can probably be completed in a day though. I'll add a few details that are not in the thesis:

My antennas are 1/2" 3M copp ...

Thanks Nicholas.

It's hard for me to answer how long it might take you to make a device. You have read what goes into it. It could really be a one-day project, but making it work well is likely t ...

Would you make more and narrower strips in a future version? Was the number of audio I/O the limiting factor in the original design?

Yes and yes. Luckily the RME has a DAC dedicated to its headp ...

Hi there. I'm glad people enjoy my project! If anyone is crazy enough to make one of these, I'd be happy to offer advice and software. I'd be interested to hear if other audio interfaces work OK. ...

Author	Message
Topic: Portable MicroMod Love
Randy Jones Replies: 11 Views: 7627	Posted: Tue Aug 18, 2009 11:22 am Subject: Portable MicroMod Love Forum: Clavia Nord Modular » NM Classic (NM1 or G1)
Randy Jones Replies: 11 Views: 7627	Great setup! A practical instrument you can explore for a long time.
Topic: Guitar fretboard as CV controller?
Randy Jones Replies: 16 Views: 13139	Posted: Thu Jun 11, 2009 3:47 pm Subject: Guitar fretboard as CV controller? Forum: DIY Hardware and Software » Musical Interfaces
Randy Jones Replies: 16 Views: 13139	Some students working with Dan Overholt at Aalborg University in Denmark are finishing up a controller in a guitar neck using my capacitive multi-touch sensor idea. For audio interfaces to run the se ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Thu Jun 11, 2009 2:27 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Shameless bump with recent developments. Some students working with Dan Overholt at Aalborg University in Denmark are finishing up a controller in a guitar neck. For audio interfaces they are us ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Tue Dec 30, 2008 11:38 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Are you sure about multiplying 2 sinusoid that are 180 degrees out of phase giving no signal? If you were summing them sure. Oops, I was thinking of addition.
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Tue Dec 30, 2008 10:01 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	I did a simulation and my filter doesn't seem sensitive to phase differences between the carrier and pickup input. I doubt your FFT would be either. In your demodulator, you are multiplying the ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Tue Dec 30, 2008 4:39 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	OK, if you want that kind of update rate, but is it necessary? I feel that anything above 100 Hz is well beyond the requirements of the application. Of your application maybe! Think of a MIDI ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Tue Dec 30, 2008 1:24 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Nicholas, you certainly do have some filter tricks up your sleeve! Your solution is very clever and uses building blocks I hadn't considered. thank you for writing it up so clearly. I will have to ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Mon Dec 29, 2008 10:00 am Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	The test signal you want to look at is a sum of eight sine waves of the frequencies you mention. The amplitudes of the sines can vary smoothly, but if you make them random, you have to lowpass filter ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Sun Dec 28, 2008 7:55 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Making the antennas is probably the hardest part of the project. It can probably be completed in a day though. I'll add a few details that are not in the thesis: My antennas are 1/2" 3M copp ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Sun Dec 28, 2008 3:05 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Thanks Nicholas. It's hard for me to answer how long it might take you to make a device. You have read what goes into it. It could really be a one-day project, but making it work well is likely t ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Tue Dec 16, 2008 6:36 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Would you make more and narrower strips in a future version? Was the number of audio I/O the limiting factor in the original design? Yes and yes. Luckily the RME has a DAC dedicated to its headp ...
Topic: Multi-Touch Proto 2
Randy Jones Replies: 73 Views: 14771	Posted: Mon Dec 15, 2008 8:07 pm Subject: Multi-Touch Proto 2 Forum: DIY Hardware and Software
Randy Jones Replies: 73 Views: 14771	Hi there. I'm glad people enjoy my project! If anyone is crazy enough to make one of these, I'd be happy to offer advice and software. I'd be interested to hear if other audio interfaces work OK. ...