Create samples of audio and play the audio.

hrajora

Hi guys. I am really fed up with QAudioOutput class and not been able to find any helpful solution on the internet. Please help me in this topic.

Query - I want to play the audio in the sample of 1024 (it would be good if it is a buffer that I can parse).

Issue - QAudioOutput has no method start is the error I am facing. Also, need help with the use of QBuffer with QAudioOutput.

My Code :

    QFile audio_file(file_name);
    if(audio_file.open(QIODevice::ReadOnly)) {

        QByteArray audio_data = audio_file.readAll();
        audio_file.close();

        QBuffer audio_buffer(&audio_data);
        audio_buffer.open(QIODevice::ReadOnly);

        QAudioFormat format;
        format.setSampleRate(1024);
        //format.setChannelCount(1);

        QAudioOutput *outputstream;
        outputstream = new QAudioOutput();
      //  connect(outputstream, SIGNAL(stateChanged(QAudio::State)), this, SLOT(handleStateChanged(QAudio::State)));
       // outputstream->startTimer(&audio_file);
        //connect(outputStream, SIGNAL(stateChanged(QAudio::State)), this, SLOT(audio_stateChanged(QAudio::State)));
        format.setSampleFormat(QAudioFormat::Int16);
       qDebug()<<outputstream;
       outputstream->start();

please consider all signals are intact and file_name is a QString declared before.

SGaist

Hi and welcome to devnet,

Are you using Qt 6 ?

hrajora

Yes I am using QT 6.

SGaist

So I think you are looking for QAudioSink::start.