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我正在使用 FEDORA 计算机来：

  • 使用 icecast 客户端 (BUTT) 将音频流式传输到网络广播服务器
  • 使用 arecord 录制音频输入

我不能两者都做，因为音频输入完全用于一个过程。这是我的音频配置：

[root@FEDORA ~]# arecord -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default
    Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=USB
    Scarlett 2i2 USB, USB Audio
    Default Audio Device
front:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    Front speakers
surround21:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=USB,DEV=0
    Scarlett 2i2 USB, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
sysdefault:CARD=PCH
    HDA Intel PCH, ALC887-VD Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Front speakers
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
sysdefault:CARD=Loopback
    Loopback, Loopback PCM
    Default Audio Device
front:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    Front speakers
surround21:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Loopback,DEV=0
    Loopback, Loopback PCM
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
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2 回答 2

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（代表 OP 发布）

使用指向我的原始和物理声卡的 dsnoop，我可以通过 arecord 实现我想要的，例如：

arecord -D plug:dsnoop -t wav a.wav &

和

arecord -D plug:dsnoop -t wav b.wav &

一起，还有我的流媒体软件（对接）作为输入：

  • 默认 PCM 设备
  • 脉冲
  • 默认
于 2016-05-23T22:48:04.543 回答
0

在出现类似问题后（在 Fedora 23 下 1h 33m 后停止录制）我已切换到ffmpeg

于 2017-02-26T13:00:16.103 回答