[LAU] Audio interface latency measurements

[Robert Jonsson]

2014-06-20 18:05 GMT+02:00 Paul Davis <paul at linuxaudiosystems.com>:
>
>
>
> On Fri, Jun 20, 2014 at 10:10 AM, Fons Adriaensen <fons at linuxaudio.org>
> wrote:
>>
>> On Fri, Jun 20, 2014 at 09:23:58AM -0400, Paul Davis wrote:
>> > On Fri, Jun 20, 2014 at 9:19 AM, Fons Adriaensen <fons at linuxaudio.org>
>> > wrote:
>> >
>> > > On Fri, Jun 20, 2014 at 09:07:37AM -0400, Paul Davis wrote:
>> > >
>> > > > If you used jack_iodelay, it would do the math for you and show you
>> > > > how
>> > > > much extra latency is bing caused by the hardware (rather than the
>> > > > period
>> > > > size).
>> > >
>> > > jack_delay will do this as well, use the -E option.
>> > >
>> >
>> > and make sure your distribution has packaged and included the new
>> > version
>> > of jack_delay :)
>>
>> Released 18 April 2011, that is more than three years ago :-)
>
>
> It might even be in Debian Stable, then! :)
>

Hehe

Anyway, thanks guys for enlightening me about improving the test results!

Follow up question: from a theoretical perspective, is it likely a usb
2.0 interface would have similar transport latency as firewire? Usb 1
I suppose would be worse due to lower clockspeed.

Regards,
Robert