请教多声卡asound.conf配置问题

iam***

路由器插入多个usb声卡（牛屎芯片最便宜的那种）

1. pcm.!default{
   
2. type plug
   
3. slave.pcm hw
   
4. }
   
5. defaults.pcm.dmix.rate 44100 # Force 44.1 KHz
   
6. defaults.pcm.dmix.format S16_LE # Force 16 bits

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以上配置 只能配好第一个声卡 其他声卡杂音严重
请教多个声卡如何一 一配置，谢谢

附上 插上连个声卡时的信息

1 aplay -l

1. **** List of PLAYBACK Hardware Devices ****
   
2. card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
   
3.   Subdevices: 1/1
   
4.   Subdevice #0: subdevice #0
   
5. card 1: Device_1 [USB Audio Device], device 0: USB Audio [USB Audio]
   
6.   Subdevices: 1/1
   
7.   Subdevice #0: subdevice #0

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2 aplay -L

1. null
   
2.     Discard all samples (playback) or generate zero samples (capture)
   
3. sysdefault:CARD=Device
   
4.     USB PnP Sound Device, USB Audio
   
5.     Default Audio Device
   
6. front:CARD=Device,DEV=0
   
7.     USB PnP Sound Device, USB Audio
   
8.     Front speakers
   
9. surround40:CARD=Device,DEV=0
   
10.     USB PnP Sound Device, USB Audio
    
11.     4.0 Surround output to Front and Rear speakers
    
12. surround41:CARD=Device,DEV=0
    
13.     USB PnP Sound Device, USB Audio
    
14.     4.1 Surround output to Front, Rear and Subwoofer speakers
    
15. surround50:CARD=Device,DEV=0
    
16.     USB PnP Sound Device, USB Audio
    
17.     5.0 Surround output to Front, Center and Rear speakers
    
18. surround51:CARD=Device,DEV=0
    
19.     USB PnP Sound Device, USB Audio
    
20.     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
    
21. surround71:CARD=Device,DEV=0
    
22.     USB PnP Sound Device, USB Audio
    
23.     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
    
24. iec958:CARD=Device,DEV=0
    
25.     USB PnP Sound Device, USB Audio
    
26.     IEC958 (S/PDIF) Digital Audio Output
    
27. sysdefault:CARD=Device_1
    
28.     USB Audio Device, USB Audio
    
29.     Default Audio Device
    
30. front:CARD=Device_1,DEV=0
    
31.     USB Audio Device, USB Audio
    
32.     Front speakers
    
33. surround40:CARD=Device_1,DEV=0
    
34.     USB Audio Device, USB Audio
    
35.     4.0 Surround output to Front and Rear speakers
    
36. surround41:CARD=Device_1,DEV=0
    
37.     USB Audio Device, USB Audio
    
38.     4.1 Surround output to Front, Rear and Subwoofer speakers
    
39. surround50:CARD=Device_1,DEV=0
    
40.     USB Audio Device, USB Audio
    
41.     5.0 Surround output to Front, Center and Rear speakers
    
42. surround51:CARD=Device_1,DEV=0
    
43.     USB Audio Device, USB Audio
    
44.     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
    
45. surround71:CARD=Device_1,DEV=0
    
46.     USB Audio Device, USB Audio
    
47.     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
    
48. iec958:CARD=Device_1,DEV=0
    
49.     USB Audio Device, USB Audio
    
50.     IEC958 (S/PDIF) Digital Audio Output
    

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iam***

顶上去。别下来

iam***

顶上去。别下来

iam***

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