On Wed, Mar 14, 2012 at 7:44 AM, Jim Graham <[email protected]> wrote: > On Tue, Mar 13, 2012 at 01:06:55AM -0700, Aledis wrote: > >> I need to record frequencies about 17kHz. I'm using MediaRecorder like >> this: > > You do realize, I hope, that most humans, by the time they're 18 or so, > have lost all hearing about around 16 kHz, right?
Actually, there still may be value in receiving such signals. Not sure about MediaRecorder, but I can definitely think of places where AudioRecord of ultrasound would be useful. For example, the jaja active stylus uses ultrasound for communication between the stylus and the device. AFAIK, they don't have an Android SDK yet (they started with iPad, natch), but when they do, AudioRecord would be their mechanism for picking up their stylus signals. http://www.kickstarter.com/projects/jonatherton/jaja-worlds-first-pressure-sensitive-stylus-for-ip All that being said, since I would have assumed that Nyquist was the inventor of Nyquil, you can tell that I'm out of my depth on audio recording... :-) -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy _The Busy Coder's Guide to Android Development_ Version 3.7 Available! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
