Only 2 channels available on 4 a channel card

jose1711 commented 2 years ago

Actual behaviour

I only see 2 channels available in Record menu while there are 4 channels input channels provided by the card.

pavucontrol: obrázok

capture controls in alsamixer: obrázok

Expected behaviour

There should be 4 channels in the menu so that 4 players can play - each using a separate channel.

Steps to reproduce

Attach ZEDi10FX interface/mix via USB and turn it on
Compile ultrastardx (latest master) and run it
Navigate to "Options/Record" menu, select "ZEDi10" soundcard
Check number of available channels

Details

Provide some additional information:

USDX version: current master (https://github.com/UltraStar-Deluxe/USDX/commit/088aaa2a000baf2f02e69a6eae832097dc4ffe4e)

Operating System + version: Arch Linux x86_64-rolling, pulseaudio

$ pactl list
..
..
Card #85
Name: alsa_card.usb-Allen___Heath_ZEDi10-00
Driver: alsa
Owner Module: n/a
Properties:
    device.enum.api = "udev"
    device.api = "alsa"
    media.class = "Audio/Device"
    api.alsa.path = "hw:5"
    api.alsa.card = "5"
    api.alsa.card.name = "ZEDi10"
    api.alsa.card.longname = "Allen & Heath ZEDi10 at usb-0000:0c:00.3-4, high speed"
    device.plugged.usec = "848608403"
    device.bus_path = "pci-0000:0c:00.3-usb-0:4:1.0"
    device.sysfs.path = "/sys/devices/pci0000:00/0000:00:08.1/0000:0c:00.3/usb5/5-4/5-4:1.0/sound/card5"
    device.bus-id = "usb-Allen___Heath_ZEDi10-00"
    device.bus = "usb"
    device.subsystem = "sound"
    device.vendor.id = "8944"
    device.vendor.name = "Allen & Heath"
    device.product.id = "22"
    device.product.name = "ZEDi10"
    device.serial = "Allen___Heath_ZEDi10"
    device.name = "alsa_card.usb-Allen___Heath_ZEDi10-00"
    device.description = "ZEDi10"
    device.nick = "ZEDi10"
    device.icon_name = "audio-card-usb"
    api.alsa.use-acp = "true"
    api.acp.auto-profile = "false"
    api.acp.auto-port = "false"
    api.dbus.ReserveDevice1 = "Audio5"
    factory.id = "14"
    client.id = "31"
    object.id = "85"
    object.path = "alsa:pcm:5"
    alsa.card = "5"
    alsa.card_name = "ZEDi10"
    alsa.long_card_name = "Allen & Heath ZEDi10 at usb-0000:0c:00.3-4, high speed"
    alsa.driver_name = "snd_usb_audio"
    device.string = "5"
Profiles:
    off: Vypnuté (sinks: 0, sources: 0, priority: 0, available: yes)
    output:analog-surround-40+input:analog-surround-40: Analógový priestorový 4.0 výstup + Analógový priestorový 4.0 vstup (sinks: 1, sources: 1, priority: 1212, available: yes)
    output:analog-surround-40: Analógový priestorový 4.0 výstup (sinks: 1, sources: 0, priority: 1200, available: yes)
    input:analog-surround-40: Analógový priestorový 4.0 vstup (sinks: 0, sources: 1, priority: 12, available: yes)
    pro-audio: Pro Audio (sinks: 1, sources: 1, priority: 1, available: yes)
Active Profile: output:analog-surround-40+input:analog-surround-40
Ports:
    analog-input-mic: Mikrofón (type: Mic, priority: 8700, latency offset: 0 usec, availability unknown)
        Properties:
            port.type = "mic"
            device.icon_name = "audio-input-microphone"
            card.profile.port = "0"
        Part of profile(s): input:analog-surround-40, output:analog-surround-40+input:analog-surround-40
    analog-output: Analógový výstup (type: Analog, priority: 9900, latency offset: 0 usec, availability unknown)
        Properties:
            port.type = "analog"
            card.profile.port = "1"
        Part of profile(s): output:analog-surround-40, output:analog-surround-40+input:analog-surround-40

s09bQ5 commented 2 years ago

Did you build ultrastardx with PortAudio support? If not, ultrastardx will use SDL and SDL will not allow us to determine the number of channels when used in conjunction with PulseAudio. We tell SDL that we don't care about the number of channels. SDL defaults to 2. PulseAudio complies and mixes all inputs to stereo. You can override SDL's choice with the environment variable SDL_AUDIO_CHANNELS.

jose1711 commented 2 years ago

Thank you, checked and PKGBUILD for Arch indeed contains --without-portaudio. I recompiled w/o this option passed all 4 mics are picked up correctly.

UltraStar-Deluxe / USDX