jimmyterrence <[email protected]> writes: >On Sep 30, 8:59=A0pm, Steve Kostecke <[email protected]> wrote: >> On 2009-10-01, jimmyterrence <[email protected]> wrote: >> >> > I'm trying to set up a computer to sync to the chu audio signal. =A0I >> > had a working box (an old Dell GX110), which died on me. =A0I'm having >> > trouble finding a sound card which seems to work well with the audio >> > drivers. =A0I've tried a Sound Blaster Audigy 2, and a Sound Blaster >> > Live! card. If you wouldn't mind, let me know what card(s) you are >> > using so that I can pick one like it up off of ebay. At least that way >> > I can start with a setup that I know works for someone. >> >> Did you install the alsa (or OSS) drivers to get the PCM devices for the >> sound cards? >> >> -- >> Steve Kostecke <[email protected]> >> NTP Public Services Project -http://support.ntp.org/
>I went back to my old post last November to make sure I had the setup >right, and it turns out I had pointed idev at /dev/dsp instead of /dev/ >audio. When I changed that, it worked. However, it's onboard sound, >and the drift on that box is sitting at -168.104 right now, and it >seems to fluctuate wildly. So I guess I'm back to looking for >alternative setups, so that I can install a soundcard in a box with a >low drift rate. I suspect that is not the drift rate but the accuracy our your reading the audio signal. 168 PPM is .1ms/sec. which I suspect is way better than you can read the radio signal. Ie, your system is fluctuating because the reference signal is fluctuating in offset, and ntp is bravely trying to follow those. >Court _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
