what is xrun?

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zoco
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what is xrun?

Postby zoco » Tue Apr 23, 2019 10:26 pm

I rarely have them so never bothered about them. Know they exist and read about them.
Bring me the probably newb question, what is an xrun exactly?

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milo
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Re: what is xrun?

Postby milo » Tue Apr 23, 2019 10:43 pm

from the Ardour Manual wrote:It is important to note that processing latency in a jackd is a matter of choice. It can be lowered within the limits imposed by the hardware (audio device, CPU and bus speed) and audio driver. Lower latencies increase the load on the system because it needs to process the audio in smaller chunks which arrive much more frequently. The lower the latency, the more likely the system will fail to meet its processing deadline and the dreaded xrun (short for buffer over- or under-run) will make its appearance more often, leaving its merry trail of clicks, pops and crackles.


(Quote taken from the Ardour Manual: http://manual.ardour.org/synchronization/latency-and-latency-compensation/, which is a really informative read.)

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Re: what is xrun?

Postby jonetsu » Wed Apr 24, 2019 12:07 am

The name of a band ?

8)

Jack and the xruns

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Michael Willis
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Re: what is xrun?

Postby Michael Willis » Wed Apr 24, 2019 2:26 am

jonetsu wrote:The name of a band ?

8)

Jack and the xruns

I'm totally in. I can record piano and/or clarinet, or midi tracks.

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bluebell
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Re: what is xrun?

Postby bluebell » Wed Apr 24, 2019 12:46 pm

Michael Willis wrote:
jonetsu wrote:The name of a band ?

8)

Jack and the xruns

I'm totally in. I can record piano and/or clarinet, or midi tracks.


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Re: what is xrun?

Postby lilith » Wed Apr 24, 2019 1:09 pm

X Runner (Directors Cut)
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English Guy
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Re: what is xrun?

Postby English Guy » Wed Apr 24, 2019 2:27 pm


zoco
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Re: what is xrun?

Postby zoco » Wed Apr 24, 2019 3:26 pm

milo wrote:
from the Ardour Manual wrote:It is important to note that processing latency in a jackd is a matter of choice. It can be lowered within the limits imposed by the hardware (audio device, CPU and bus speed) and audio driver. Lower latencies increase the load on the system because it needs to process the audio in smaller chunks which arrive much more frequently. The lower the latency, the more likely the system will fail to meet its processing deadline and the dreaded xrun (short for buffer over- or under-run) will make its appearance more often, leaving its merry trail of clicks, pops and crackles.


(Quote taken from the Ardour Manual: http://manual.ardour.org/synchronization/latency-and-latency-compensation/, which is a really informative read.)


Thank you Milo. Clear explanation.

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Re: what is xrun?

Postby ufug » Wed Apr 24, 2019 4:40 pm

Also, sometimes xruns make a click or a pop, but much of the time they leave no audible trace.

So it's good to minimize them, but you don't need to obsess about them if you're not having trouble. Ardour and Mixbus (maybe others?) have a setting that will place a marker when an xrun occurs. This is a great "real world" way to see if you are having issues and to check for clicks.

zoco
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Re: what is xrun?

Postby zoco » Thu Apr 25, 2019 2:11 pm

Thank you for the warning Ufug. I have had them, one or two each time, about three times or so myself so no problem at all. Exactly that was why i was interested in what it is and does.


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