在Linux中创建

克隆输入音频设备我使用的是一个Fedora计算机：在Linux中创建

流音频的网络电台服务器使用的Icecast客户端（对接）
录制音频输入使用的arecord

我不能这样做，因为音频输入是完全采取一个进程。这就是我的音频配置：

[[email protected] ~]# 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

来源

2016-05-16 Miro Barsocchi

Icecast和您未知的音频录制程序都配置d使用PulseAudio？ –

未知录制音频是启动arecord的简单bash脚本。脉冲音频是“可见的”，可配置为（在arecord上通过设置-D标志，通过GUI对接），但如果我将脉冲设置为1，则比另一个给我错误选择脉冲或“sysdefault：CARD = USB”设备。 –

我认为'pulse'可以共享，但显然这并不是默认启用的。无论如何，让我们忘记PulseAudio吧，在两者中都尝试'dsnoop'。 –