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Author Topic: LIVE speech ultrasound audio.  (Read 2298 times)

Offline bogeyandre

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LIVE speech ultrasound audio.
« on: April 13, 2016, 10:57:20 pm »
I am working on a project.  I am trying to find out how to take LIVE speech-vocal audio and crank it up to ultrasound audio transmission.  20 KHz and yet still clear enough to have a persons sub concious percieve words subconciously.  I am hearing things like a heterodyne mixer and frequency shifting. 

Offline Fletcher

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Re: LIVE speech ultrasound audio.
« Reply #1 on: April 14, 2016, 10:14:37 am »
Wow -- that sounds like a rather ambitious project!!  Please keep us updated on your progress!!

Peace
CN Fletcher

mwagener wrote on Sat, 11 September 2004 14:33
We are selling emotions, there are no emotions in a grid


"Recording engineers are an arrogant bunch
If you've spent most of your life with a few thousand dollars worth of musicians in the studio, making a decision every second and a half... and you and  they are going to have to live with it for the rest of your lives, you'll get pretty arrogant too.  It takes a certain amount of balls to do that... something around three"
Malcolm Chisholm

Offline ConorBlake

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Re: LIVE speech ultrasound audio.
« Reply #2 on: April 25, 2016, 02:44:20 am »
That seems great! Your problem is much more serious than mine - you are trying to find out how to take LIVE speech-vocal audio and crank it up to ultrasound audio transmission. This is kinda problematic task to have a persons' sub concsious percieve words subconciously. I have no idea how you can do it; I am trying to figure out how to write an essay, and there are already a lot of professionals who are eager to help me with my task. Update us on any news whether you managed with the problem :)

Offline Grandleos

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Re: LIVE speech ultrasound audio.
« Reply #3 on: September 27, 2016, 07:27:32 am »
Learning is necessary, and I think the matter deserves to learn it more.

Offline boz6906

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Re: LIVE speech ultrasound audio.
« Reply #4 on: October 09, 2016, 03:15:15 pm »
Shouldn't be difficult, just mix (beat) the speech signal with affixed tone where the sum of the original freq. and the beat tone are in the ultrasonic range.

A 30kHz tone would bump up the output freq range 30020 to 50kHz.
Highpass the output at 20kHz and you have only an ultrasonic speech signal.

This is very interesting way to explore nature.

Here's a similar method to bring VLF RF down to audible range, realtime:

http://www.universetoday.com/102234/put-the-aurora-borealis-in-your-ear/