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wiki:jack_latency_tests [2010/12/12 15:32] – added link to latentor rgareus | wiki:jack_latency_tests [2013/06/02 15:45] – external edit 127.0.0.1 | ||
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===== Measuring roundtrip latency with jack_delay ===== | ===== Measuring roundtrip latency with jack_delay ===== | ||
- | [[http://www.kokkinizita.net/ | + | [[http:// |
jack_delay works by emitting some rather annoying tones, capturing them again after a roundtrip through the whole chain and measuring the difference in phase so it can estimate with great accuracy how long has the whole process taken. This is no theoretical estimation, jack_delay is a measuring tool that will give you the real deal. | jack_delay works by emitting some rather annoying tones, capturing them again after a roundtrip through the whole chain and measuring the difference in phase so it can estimate with great accuracy how long has the whole process taken. This is no theoretical estimation, jack_delay is a measuring tool that will give you the real deal. | ||
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The [[http:// | The [[http:// | ||
- | Low-latency is not always a feature you want to have. It comes with a couple of drawbacks: the most prominent is increased power-consumption because the CPS needs to process many small chunks of audio-data, it is constantly active and can not enter power-saving mode. Furthermore, | + | Low-latency is not always a feature you want to have. It comes with a couple of drawbacks: the most prominent is increased power-consumption because the CPU needs to process many small chunks of audio-data, it is constantly active and can not enter power-saving mode. Furthermore, |
Stable low-latency (≤10ms) on GNU/Linux can usually only be achieved by running [[https:// | Stable low-latency (≤10ms) on GNU/Linux can usually only be achieved by running [[https:// | ||
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===== References ===== | ===== References ===== | ||
- | * [[http://www.kokkinizita.net/ | + | * [[http:// |
* [[http:// | * [[http:// | ||
* [[http:// | * [[http:// |