特殊:Badtitle/NS100:UbuntuStudio/HardwareOptimization:修订间差异
小无编辑摘要 |
小无编辑摘要 |
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With the notable exception of firewire devices, the vast majority of soundcards in [[UbuntuHelp:UbuntuStudio|UbuntuStudio]] will be supported through the ALSA-Project drivers. These drivers tend to work 'out of the box' as they are the main sound drivers in Ubuntu. Full compatibility listings can be found at [http://www.alsa-project.org http://www.alsa-project.org] The following are tweaks to improve/fix common issues with particular cards. | With the notable exception of firewire devices, the vast majority of soundcards in [[UbuntuHelp:UbuntuStudio|UbuntuStudio]] will be supported through the ALSA-Project drivers. These drivers tend to work 'out of the box' as they are the main sound drivers in Ubuntu. Full compatibility listings can be found at [http://www.alsa-project.org http://www.alsa-project.org] The following are tweaks to improve/fix common issues with particular cards. | ||
=== FireWire Audio === | === FireWire Audio === | ||
FireWire audio support is maturing in Linux generally, but still | [[UbuntuHelp:FireWire|FireWire]] audio support is maturing in Linux generally, but still can provide some challenges for the creative user. | ||
[[UbuntuHelp:UbuntuStudio|UbuntuStudio]] 8.04 (Hardy Heron) ships with the [http://freebob.sourceforge.net FreeBoB] [[UbuntuHelp:FireWire|FireWire]] audio drivers, which implement support for a small range of external audio devices. [http://freebob.sourceforge.net/index.php/List_of_Supported_Devices (FreeBoB supported devices)] | |||
[[UbuntuHelp:UbuntuStudio|UbuntuStudio]] 9.04 (Jaunty Jackalope) and 9.10 (Karmic Koala) ship with the FFADO driver. [http://ffado.org/?q=devicesupport/list (FFADO supported devices)] | |||
Check to see if your device is supported before installing [[UbuntuHelp:UbuntuStudio|UbuntuStudio]], or making a purchase. | |||
[http://www.ffado.org FFADO], the successor project to FreeBoB, also notes that some [[UbuntuHelp:FireWire|FireWire]] host cards [http://www.ffado.org/?q=node/251 are better than others] | |||
<pre><nowiki> | <pre><nowiki> | ||
Some of Ricoh chipsets are reported _not_ to work well, some seem to work fine. NEC chipset has been tested by a developer and is reported to work fine, but since Presonus advises against them, there must be a reason to avoid them. | Some of Ricoh chipsets are reported _not_ to work well, some seem to work fine. NEC chipset has been tested by a developer and is reported to work fine, but since Presonus advises against them, there must be a reason to avoid them. | ||
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Most modern Linux distributions use a hot-pluggable architecture for USB, which means that you can add and remove devices on the fly. In everyday use, this is very helpful. However, for pro-audio use this often means that the Alsa device numbers (hw:X) of your USB sound cards and MIDI interfaces can change every time you plug them in - or boot up. See [[UbuntuHelp:UbuntuStudio/UsbAudioDevices|UsbAudioDevices]] for some advice on this matter. | Most modern Linux distributions use a hot-pluggable architecture for USB, which means that you can add and remove devices on the fly. In everyday use, this is very helpful. However, for pro-audio use this often means that the Alsa device numbers (hw:X) of your USB sound cards and MIDI interfaces can change every time you plug them in - or boot up. See [[UbuntuHelp:UbuntuStudio/UsbAudioDevices|UsbAudioDevices]] for some advice on this matter. | ||
=== Creative === | === Creative === | ||
=== Echo Audio === | |||
Several Echo Audio cards are supported by alsa, but need a firmware blob to make them work. This is available in the alsa-firmware package from [[UbuntuHelp:Medibuntu|Medibuntu]]. | |||
The best mixer for these cards is echomixer, which is included in the alsa-tools-gui package. | |||
=== Intel === | === Intel === | ||
==== QuickFix poor sound qualtiy of intel 82801H ==== | ==== QuickFix poor sound qualtiy of intel 82801H ==== |
2009年11月17日 (二) 20:57的最新版本
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Find configuration settings and Driver information that will help your audio hardware perform the best.
Sound Cards
With the notable exception of firewire devices, the vast majority of soundcards in UbuntuStudio will be supported through the ALSA-Project drivers. These drivers tend to work 'out of the box' as they are the main sound drivers in Ubuntu. Full compatibility listings can be found at http://www.alsa-project.org The following are tweaks to improve/fix common issues with particular cards.
FireWire Audio
FireWire audio support is maturing in Linux generally, but still can provide some challenges for the creative user. UbuntuStudio 8.04 (Hardy Heron) ships with the FreeBoB FireWire audio drivers, which implement support for a small range of external audio devices. (FreeBoB supported devices) UbuntuStudio 9.04 (Jaunty Jackalope) and 9.10 (Karmic Koala) ship with the FFADO driver. (FFADO supported devices) Check to see if your device is supported before installing UbuntuStudio, or making a purchase. FFADO, the successor project to FreeBoB, also notes that some FireWire host cards are better than others
Some of Ricoh chipsets are reported _not_ to work well, some seem to work fine. NEC chipset has been tested by a developer and is reported to work fine, but since Presonus advises against them, there must be a reason to avoid them. So far, in order of preference (best to worst) according to developers: Texas Instruments, VIA, NEC, O2 Micro (all are OHCI controllers)
USB Audio
USB Audio devices are generally well supported - look particularly for devices that advertise 'Driver Free operation on Windows and Mac OS X'. This implies that the device is 'Class Compliant', a technical term for 'smart enough to talk to anything'! As always, though, check compatability first. Most modern Linux distributions use a hot-pluggable architecture for USB, which means that you can add and remove devices on the fly. In everyday use, this is very helpful. However, for pro-audio use this often means that the Alsa device numbers (hw:X) of your USB sound cards and MIDI interfaces can change every time you plug them in - or boot up. See UsbAudioDevices for some advice on this matter.
Creative
Echo Audio
Several Echo Audio cards are supported by alsa, but need a firmware blob to make them work. This is available in the alsa-firmware package from Medibuntu. The best mixer for these cards is echomixer, which is included in the alsa-tools-gui package.
Intel
QuickFix poor sound qualtiy of intel 82801H
Choppy audio was reported for the Intel 82801H on Ubuntustudio Hardy out of the box.
- Run `lspci | grep audio` and if yours looks something like
00:lb.0 Audio device: Intel Corporation 82801H (IHC8 Family) HD Audio Controller (rev 03)
- Run `sudo gedit /etc/modprobe.d/alsa-base` and at the bottom, add:
options snd-hda-intel model=laptop position_fix=1
M-Audio
VIA
QuickFix poor sound quality of snd-via82xx
Problem described on : http://alsa.opensrc.org/Via8233#Poor_sound_quality
- Create the file `/etc/modprobe.d/soundcards`
- Run `sudo gedit /etc/modprobe.d/soundcards`
- Enter the following line into the file:
options snd-via82xx dxs_support=4
- Save and Reboot