[pulseaudio-discuss] USB microphone works, monitoring doesn't

[Joe daLuz]

Hi,

I just added a USB microphone to an already working setup (see below for
details). The microphone works fine according to the volume meter and
playback of any recordings I make. However I cannot monitor what the
microphone captures in real time. This is using Pulseaudio 0.9.15-r51 on
Gentoo using Gnome 2.26.3. Any help on this would be appreciated as, while
the current setup is not impossible to use it is sub-optimal.

>>> list-cards
2 card(s) available.
    index: 0
    name: <alsa_card.pci_13f6_111_sound_card_0>
    driver: <module-alsa-card.c>
    owner module: 4
    properties:
        alsa.card = "0"
        alsa.card_name = "C-Media CMI8768"
        alsa.long_card_name = "C-Media CMI8768 at 0xd000, irq 20"
        alsa.driver_name = "snd_cmipci"
        device.bus = "pci"
        device.vendor.id = "13f6"
        device.product.id = "0111"
        device.bus_path =
"/devices/pci0000:00/0000:00:1e.0/0000:06:00.0/sound/card0"
        hal.udi = "/org/freedesktop/Hal/devices/pci_13f6_111_sound_card_0"
        hal.product = "C-Media CMI8768 Sound Card"
        hal.card_id = "C-Media CMI8768"
        device.string = "0"
        device.description = "C-Media CMI8768"
        device.icon_name = "audio-card-pci"
    profiles:
        output-analog-mono+input-analog-mono: Output Analog Mono + Input
Analog Mono (priority 101)
        output-analog-mono+input-analog-stereo: Output Analog Mono + Input
Analog Stereo (priority 30110)
        output-analog-mono+input-iec958-stereo: Output Analog Mono + Input
Digital Stereo (IEC958) (priority 30105)
        output-analog-mono: Output Analog Mono (priority 100)
        output-analog-stereo+input-analog-mono: Output Analog Stereo + Input
Analog Mono (priority 51001)
        output-analog-stereo+input-analog-stereo: Output Analog Stereo +
Input Analog Stereo (priority 81010)
        output-analog-stereo+input-iec958-stereo: Output Analog Stereo +
Input Digital Stereo (IEC958) (priority 81005)
        output-analog-stereo: Output Analog Stereo (priority 51000)
        output-iec958-stereo+input-analog-mono: Output Digital Stereo
(IEC958) + Input Analog Mono (priority 50501)
        output-iec958-stereo+input-analog-stereo: Output Digital Stereo
(IEC958) + Input Analog Stereo (priority 80510)
        output-iec958-stereo+input-iec958-stereo: Output Digital Stereo
(IEC958) + Input Digital Stereo (IEC958) (priority 80505)
        output-iec958-stereo: Output Digital Stereo (IEC958) (priority
50500)
        output-analog-surround-40: Output Analog Surround 4.0 (priority 700)
        output-analog-surround-41: Output Analog Surround 4.1 (priority 700)
        output-analog-surround-50: Output Analog Surround 5.0 (priority 700)
        output-analog-surround-51: Output Analog Surround 5.1 (priority 800)
        output-analog-surround-71: Output Analog Surround 7.1 (priority 700)
        input-analog-mono: Input Analog Mono (priority 1)
        input-analog-stereo: Input Analog Stereo (priority 30010)
        input-iec958-stereo: Input Digital Stereo (IEC958) (priority 30005)
        off: Off (priority 0)
    active profile: <output-analog-stereo>
    sinks:
        alsa_output.pci_13f6_111_sound_card_0/#0: C-Media CMI8768
    sources:
        alsa_output.pci_13f6_111_sound_card_0.monitor/#0: Monitor of C-Media
CMI8768
    index: 1
    name: <alsa_card.usb_device_74d_5_noserial_if0_sound_card_1>
    driver: <module-alsa-card.c>
    owner module: 5
    properties:
        alsa.card = "1"
        alsa.card_name = "Blue Snowball"
        alsa.long_card_name = "BLUE MICROPHONES Blue Snowball at
usb-0000:00:1a.2-1, full speed"
        alsa.driver_name = "snd_usb_audio"
        device.bus = "usb"
        device.vendor.id = "074d"
        device.vendor.name = "BLUE_MICROPHONES"
        device.product.id = "0005"
        device.product.name = "Blue_Snowball"
        device.serial = "BLUE_MICROPHONES_Blue_Snowball"
        device.bus_path =
"/devices/pci0000:00/0000:00:1a.2/usb5/5-1/5-1:1.0/sound/card1"
        hal.udi =
"/org/freedesktop/Hal/devices/usb_device_74d_5_noserial_if0_sound_card_1"
        hal.product = "BLUE MICROPHONES Blue Snowball Sound Card"
        hal.card_id = "BLUE MICROPHONES Blue Snowball"
        device.string = "1"
        device.description = "Blue_Snowball"
        device.icon_name = "audio-card-usb"
    profiles:
        input-analog-mono: Input Analog Mono (priority 1)
        off: Off (priority 0)
    active profile: <input-analog-mono>
    sources:
        alsa_input.usb_device_74d_5_noserial_if0_sound_card_1/#1:
Blue_Snowball

Joe daLuz
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