Re: [LAD] Anyone working on software implementation of Ravenna for Linux?

On Sun, 16 Jul 2017, Hanspeter Portner wrote:

> On 16.07.2017 02:13, Len Ovens wrote:
>> to sync your internal audio card to an external ntp server. This accuracy pretty
>> much requires a HW ntp server. As I said the intel i210 ethernet cards at
>> $60-ish seems to be about the cheapest route.
>
> It think it should be PTP [1] instead of NTP above, the latter is not accurate
> enough.

Thats what I get for answering off the top of my head from a camp site :P

> PTP can also be run in software timestamping mode, hardware timestamping will be
> more accurate, though [2].

I am not aware of anyone managing to get sw mode to be accurate enough to
derive wordclock from.

> [1] https://en.wikipedia.org/wiki/Precision_Time_Protocol
> [2] http://linuxptp.sourceforge.net/

--
Len Ovens
www.ovenwerks.net
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