QMediaDevices audio outputs have wrong sample rates

[TheEnigmist]

I'm trying to play some audio on output devices. Since I was getting some errors with format I printed all devices preferred foramt and found out that they accept a sample rate less than showed in system info.
Here system info default audio output:

Here what Qt6.3 says about preferred format:

This is sample code I used to create audio output:

QAudioOutput *audioOutput = new QAudioOutput(QMediaDevices::defaultAudioOutput());
for (QAudioDevice a : QMediaDevices::audioOutputs()) {
    QAudioFormat t = audioOutput->device().preferredFormat();
    qDebug() << a.description() << t.channelCount() << t.sampleRate() << t.sampleFormat();
}
QAudioSink* testAudio = new QAudioSink(audioOutput->device().preferredFormat(), baseWidget);
QIODevice* audioDevice = testAudio->start();

This leads to an incorrect playback of input file (a little bit "slowed" since his sample rate is 48000)

[SGaist]

Hi,

The preferred format is one thing, why not set the one that you actually want ?

[TheEnigmist]

@SGaist Yes that was what I was trying. But I found the error. SampleFormat was set to Unknown instead of Int16. Now I only need to syncronize and write audio in the right rate