 |
PM |  | |
Quote | | |
Reply | | |
Full Topic | |
| Joined: | Feb 21st, 2007 |
| Location: | Houston, Texas USA |
| Posts: | 318 |
| Status: |
Offline
|
Frank R.
| View single post by fratka | |||||||||||||
| Posted: Jan 15th, 2008 01:56 PM |
|
||||||||||||
fratka
|
I used a normal mic, I wasn't recording the ultrasonic sound. I was recording the intermediate frequencies they created through heterodyning (mixing). The lower intermediate frequency was usually well within the hearing range of humans though the upper and primary freqs were not. Frank R.
|
||||||||||||
|
| |||||||||||||