Messages in this thread | | | Subject | RE: High-pitch noise with 2.6.0-test11 | From | Jean-Marc Valin <> | Date | Fri, 05 Dec 2003 14:09:14 -0500 |
| |
> Here's the answer from another thread: > > "It's not normal, but it means they used cheap capacitors. This is known > as the acoustic noise issue. It's related to PCB vibration as a result > of the piezo electric effect on the caps. What is the timer tick > frequency? ... The 1ms gives a nice 1kHz tone. It's related to the > voltage change of C4 exit."
Well, that still doesn't explain why the noise is only there when I insert thermal.o. Also, the noise seems to be higher than 1 kHz (I'd guess 5-10 kHz).
Jean-Marc
-- Jean-Marc Valin, M.Sc.A., ing. jr. LABORIUS (http://www.gel.usherb.ca/laborius) Université de Sherbrooke, Québec, Canada [unhandled content-type:application/pgp-signature] | |