“UbuntuHelp:UbuntuStudio/QuickTips”的版本间的差异
来自Ubuntu中文
小 （新页面: {{From|https://help.ubuntu.com/community/UbuntuStudio/QuickTips}} {{Languages|UbuntuHelp:UbuntuStudio/QuickTips}} "Quick Tips" is a place to share information on how to improve low-latenc...） |
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e.g. Added line "module foo" to /etc/foo/foo.conf and entered "/etc/init.d/foo restart" to reload foo. Achieved six hours of performance at 96kHz/3/128 with XRUNS only happening when starting applications. | e.g. Added line "module foo" to /etc/foo/foo.conf and entered "/etc/init.d/foo restart" to reload foo. Achieved six hours of performance at 96kHz/3/128 with XRUNS only happening when starting applications. | ||
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| + | Setting and controling JACK is easy using '''JACK Control''' (''qjackctl''). For running JACK with ''Real-time Full-Duplex'' capabilities using Audio Card ''Intel Corporation (ICH6 Family) High Definition Audio Controller'', with ''ALSA ALC880 Analog Playback/Capture'', set JACK preferences on Setup.../Settings tab (''qjackctl'') to: | ||
| + | * check Realtime, with prioity: 0 | ||
| + | * check Force 16-bit | ||
| + | * Frames/Period: 128 (lower this for reduce latency) | ||
| + | * Sample Rate: 44100 | ||
| + | * Periods/Buffer: 3 | ||
| + | * Audio: Duplex (default) | ||
| + | * Driver: alsa (default) | ||
| + | * and leave the others to default. | ||
| + | Using ''linux-lowlatency'' package is recommended for better performance. This setting will achieve, 44.1kHz/3/128. The number of | ||
| + | XRUNS was not counted. | ||
[[category:UbuntuHelp]] | [[category:UbuntuHelp]] | ||
2007年11月21日 (三) 17:47的版本
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"Quick Tips" is a place to share information on how to improve low-latency performance of UbuntuStudio and particularly JACK. Please report the steps you took to achieve your configuration, along with performance metrics: Your sampling rate, buffers/periods setting, and an estimate frequency of XRUNS.
-- e.g. Added line "module foo" to /etc/foo/foo.conf and entered "/etc/init.d/foo restart" to reload foo. Achieved six hours of performance at 96kHz/3/128 with XRUNS only happening when starting applications. --
Setting and controling JACK is easy using JACK Control (qjackctl). For running JACK with Real-time Full-Duplex capabilities using Audio Card Intel Corporation (ICH6 Family) High Definition Audio Controller, with ALSA ALC880 Analog Playback/Capture, set JACK preferences on Setup.../Settings tab (qjackctl) to:
- check Realtime, with prioity: 0
- check Force 16-bit
- Frames/Period: 128 (lower this for reduce latency)
- Sample Rate: 44100
- Periods/Buffer: 3
- Audio: Duplex (default)
- Driver: alsa (default)
- and leave the others to default.
Using linux-lowlatency package is recommended for better performance. This setting will achieve, 44.1kHz/3/128. The number of XRUNS was not counted.
