设置alsa-mixer

重新emerge -aC alsa-driver 把它干掉，然后再把
代码:┌───────────────────────────────────────[AlsaMixer v1.0.16 (Press Escape to quit)]────────────────────────────────────────┐
│ Card: HDA Intel │
│ Chip: Analog Devices AD1984 │
│ View: [Playback] Capture All │
│ Item: Master [dB gain=-10.50] │
│ │
│ │
│ ┌──┐ ┌── ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ ┌──┐ │
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│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ ADC │▒▒│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ ├──┤ ┌──┐ └──┘ ├──┤ └──┘ ├──┤ ├──┤ ├──┤ └──┘ ├──┤ └──┘ ┌──┐ │
│ │OO│ │OO│ │MM│ │MM│ │OO│ │MM│ │MM│ │OO│ │
│ └──┘ └──┘ └──┘ └──┘ └──┘ └──┘ └──┘ └──┘ │
│ 82 87<>87 77<>74 67<>67 95<>95 48<>48 71<>68 33<>33 52<>52 67<>67 │
│ < Master >Headphon PCM Mic Mic Boos IEC958 IEC958 P Beep Docking Docking Internal Internal Speaker │
│ │把Speaker从 MM 改成 00 ，现在变成用原来的驱动都可以了

将 Headphone和Speaker设置为打开，通过按下按键 m来设置，具体可以通过?号键来查看各键值帮助，
或者按下F1键查看，按下F2键查看声卡信息，
按下F4来设置录机功能，移动到 Capture 在上面按下空格键，会看到红色的 L R 说明选中了，然后在Input source 里选择音源为Mic 通过上下键来选择，通过audacity录音软件来测试，也可通过skype录音回放来试试

Card: HDA Intel                                                                                                           │
│ Chip: Analog Devices AD1984                                                                                               │
│ View: Playback [Capture] All                                                                                             │
│ Item: Mic Boost                                                                                                           │
│                                                                                                                           │
│                                                                                                                           │
│                                                                                                                           │
│                                                                                                                           │
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│         ┌──┐          ┌──┐           ┌──┐          ┌──┐          ┌──┐                                       ┌──┐          │
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│         │▒▒│          │▒▒│           │▒▒│          │▒▒│          │▒▒│                                       │▒▒│          │
│         │▒▒│          │▒▒│           │▒▒│          │▒▒│          │▒▒│           Mic           Mic           │▒▒│          │
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│         └──┘         L└──┘R         L└──┘R         └──┘          └──┘                                       └──┘          │
│                      CAPTUR         CAPTUR                                                                                │
│        33<>33        98<>98         98<>98       100<>100       33<>33                                     67<>67         │
│      <Mic Boos>     Capture        Capture       Digital       Docking        Input So      Input So      Internal        │
│