Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
faq:start [2012/02/03 03:42] – 76.10.176.11 | faq:start [2013/07/16 23:33] – the_aviv | ||
---|---|---|---|
Line 1: | Line 1: | ||
====== Linux Audio User FAQ (Frequently Asked Questions) ====== | ====== Linux Audio User FAQ (Frequently Asked Questions) ====== | ||
- | |||
- | . | ||
- | |||
- | . | ||
===== General ===== | ===== General ===== | ||
Line 16: | Line 12: | ||
[[wiki: | [[wiki: | ||
+ | |||
+ | In linux kernels 3.0 and later, many of the additionally required realtime patches have been incorporated as standard. For those who are recording Audio, a standard non-realtime kernel may be sufficient for your needs, and running Jack with a non realtime kernel will work fine. | ||
+ | |||
+ | |||
+ | For those who write a lot of Midi, the standard kernel timing is set at 250Hz, and realtime kernels are generally set at 1000Hz. You may still have to use a realtime kernel to obtain accurate midi playback using the higher timing setting. | ||
==== Q: Some of my applications sound a (half)tone too high/low, have a wrong pitch ? ==== | ==== Q: Some of my applications sound a (half)tone too high/low, have a wrong pitch ? ==== | ||
**A:** It's likely, that the sample-rate of the programs you're using doesn' | **A:** It's likely, that the sample-rate of the programs you're using doesn' | ||
Line 33: | Line 34: | ||
* [[http:// | * [[http:// | ||
* [[http:// | * [[http:// | ||
+ | * [[http:// | ||
**Applications** | **Applications** | ||
* [[http:// | * [[http:// | ||
Line 149: | Line 151: | ||
**A:** A buffer is not filled in time for the requesting software to use it. Sound data does not arrive fast enough so that the requesting software has a continuous stream of data, in other words, the requesting software runs out of sound data. This is because some part of the system is not fast enough to keep up. | **A:** A buffer is not filled in time for the requesting software to use it. Sound data does not arrive fast enough so that the requesting software has a continuous stream of data, in other words, the requesting software runs out of sound data. This is because some part of the system is not fast enough to keep up. | ||
+ | |||
+ | An obvious fix for this is increasing the period size. If you're running jack with 128, for example, and you're getting regular X-runs, then increasing the size to 256 may help immediately, | ||
+ | |||
===== MIDI ===== | ===== MIDI ===== | ||
Line 326: | Line 331: | ||
+ | {{tag> |