如何解决openFrameworks和其他音频应用程序之间的冲突？ [英] How can I solve a conflict between openFrameworks and other audio applications?

问题描述

当我尝试执行 openFrameworks 附带的audioOutputExample时，会收到

设备（hw：0,0），设备或
资源忙时，

RtApiAlsa :: getDeviceIno：snd_pcm_open
错误。 p>

RtApiAlsa :: probeDeviceOpen：pcm device
（hw：0,0）不会打开输出。

RtApi ::流未打开！

处理返回0（0x0）执行
时间：3.462 s按ENTER键到

• Rhythmbox正在播放。
  
  

Rhythmbox最近播放（约5秒前）

Firefox与Grooveshark有一个标签页， >

最近已关闭Groovshark标签（约5秒前）

Firefox有一个标签页，可播放或暂停播放YouTube视频

YouTube标签页最近已关闭（约5秒前）

即使我以前使用过Rhythmbox，Grooveshark或Youtube。

我如何解决这个冲突，允许同时使用audioOutputExample和Rythmbox。 p>

PS我在Ubuntu 11.04上，使用 openFrameworks_v0062_linux64_FAt ...

解决方案

我找到了一个解决方案。问题是，我有两个内部声音设备注册 - HDMI和PCH。 HDMI设备始终分配为 card0 ，可以通过键入

然后我使用

更改了alsa配置。

  gksudo gedit /etc/modprobe.d/alsa-base.conf 
  

并在end

  options snd-hda-intel index = -2 
  

从而强制将HDMI分配给card1，将另一个设备分配给card0。
另一个选项是

 选项snd-hda-intel id = PCH，HDMI索引= 0,1 
  

分配卡索引。不过，我在这里阅读了 HDMI，PCH ，这并不适合所有人。

注意此方法的详细信息取决于您在计算机中使用的设备。通过键入 aplay -l <​​/ strong>找到alsa已知的那些。

When I try executing the audioOutputExample shipped with openFrameworks, I get

RtApiAlsa::getDeviceIno: snd_pcm_open error for device (hw:0,0), Device or resource busy.

RtApiAlsa::probeDeviceOpen: pcm device (hw:0,0) won't open for output.

RtApi:: a stream is not open!

Process returned 0 (0x0) execution time : 3.462 s Press ENTER to continue.

when

• Rhythmbox is playing
• Rhythmbox has played recently (under ~5 seconds ago)
• Firefox has a tab with Grooveshark, either playing a tune or on pause
• The Groovshark tab has been recently closed (under ~5 seconds ago)
• Firefox has a tab with a Youtube Video, either playing or on pause
• The Youtube tab has been recently closed (under ~5 seconds ago)

Otherwise, the example works fine, even if I've used Rhythmbox, Grooveshark or Youtube before.

How can I solve this conflict to allow simultaneous use of audioOutputExample and, say, Rythmbox.

P.S. I am on Ubuntu 11.04, using openFrameworks_v0062_linux64_FAt...

解决方案

I found a solution. The problem was, that I have two internal sound devices registered - HDMI and PCH. The HDMI device was always assigned to be card0, which can be checked by typing

aplay -l 

into the terminal. This will list the different devices.

I then changed my alsa configuration using

gksudo gedit /etc/modprobe.d/alsa-base.conf

and adding at the end

options snd-hda-intel index=-2

thereby forcing the HDMI to be assigned to card1 and the other device to card0. Another option there is to put

options snd-hda-intel id=PCH,HDMI index=0,1

assigning the card index. However, I read here HDMI,PCH that this did not work for everybody.

Note the details of this method depend on the devices that you have in your computer. Find those known to alsa by typing aplay -l.

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