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  1. Qt
  2. QTBUG-107678

audio device has unknown channel

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Details

    • Bug
    • Resolution: Fixed
    • P1: Critical
    • 6.4.2, 6.5.0 Beta1
    • 6.4.0
    • Multimedia
    • None
    • macOS

    Description

      import QtQuick
import QtQuick.Window
import QtMultimedia

Window {
    width: 640
    height: 480
    visible: true

    SoundEffect {
        source: "any.wav"
    }
}

      (for some valid any.wav file) works but on launch produces the error message

      audio device has unknown channel 4294967295

      about 200 times, completely cluttering up the application output. It seems something pointless is being re-tried excessively, which can't be good for startup performance. This happens in both debug and release modes. Worked fine in Qt5, have not checked Qt6 versions below 6.4.

      Attachments

        1. dump_audio_main.cpp
          7 kB
        2. dump_audio_res.txt
          21 kB
        3. dump_audio_res2.txt
          22 kB

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-115092 macOS: QMediaDevices::defaultAudioOutput() floods the output with warnings

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-113256 [macOS] Warnings when connecting/disconnecting AirPods

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-129694 [macOS] "Channel layout uses unimplemented format" Qt warnings

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
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          Activity

            People

              artemiy Artem Dyomin
              linoleo Lino Schraudolph
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              Dates

                Created:
                Updated:
                Resolved:

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