VLC taking ~45 seconds to start input from USB Capture Device, when audio is included

[ChrisFlynn]

I have a USB Capture Device (https://www.lindy.co.uk/usb-c4/usb-conv ... ice-p10158), which shows up in VLC as "USB Video Device" and "Microphone (USB Audio Device)".

If I play video-only in VLC, everything is great.
If I play audio-only or audio+video in VLC, there is a ~45 second delay of the orange bar bouncing back and forth, before VLC finally presents the input.

This happens both through the UI, and also command line...

No sound, works instantly:

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"C:\Program Files\VideoLAN\VLC\vlc.exe" dshow:// :dshow-vdev="USB Video Device" :dshow-adev=none :live-caching=0 --zoom=0.5

With sound, takes ~45 seconds:

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"C:\Program Files\VideoLAN\VLC\vlc.exe" dshow:// :dshow-vdev="USB Video Device" :dshow-adev="Microphone (USB Audio Device)" :live-caching=0 --zoom=0.5 --verbose=2 --file-logging --logfile=vlc-log.txt

N.B. whilst I'm waiting, I have time to go into the Messages window in the UI. Whilst I'm waiting, that just shows:

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main debug: VLC media player - 3.0.20 Vetinari main debug: Copyright © 1996-2023 the VideoLAN team main debug: revision 3.0.20-0-g6f0d0ab126 main debug: configured with /builds/videolan/vlc/extras/package/win32/../../../configure '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-shout' '--enable-goom' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=x86_64-w64-mingw32' '--with-contrib=../contrib/x86_64-w64-mingw32' '--with-breakpad=https://win.crashes.videolan.org' '--enable-qt' '--enable-skins2' '--enable-dvdread' '--enable-caca' 'host_alias=x86_64-w64-mingw32' 'CFLAGS= -D_WIN32_WINNT=0x0502 -DWINVER=0x502 -D__MSVCRT_VERSION__=0x700 ' 'CXXFLAGS= -D_WIN32_WINNT=0x0502 -DWINVER=0x502 -D__MSVCRT_VERSION__=0x700 ' 'PKG_CONFIG=pkg-config' 'PKG_CONFIG_LIBDIR=/usr/x86_64-w64-mingw32/lib/pkgconfig:/usr/lib/x86_64-w64-mingw32/pkgconfig'

[ChrisFlynn]

I have a log, but not sure how to share it. It's too big for here, and pastebin says:

Pastebin’s SMART filters have detected potentially offensive or questionable content in your Paste.
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!

[Lotesdelere]

Then use https://justpaste.it .

[ChrisFlynn]

I think this is now fixed... In Windows Settings I went to System > Sounds > Input, and in "2- USB audio CODEC" selected "Don't allow".