Click here to Skip to main content

Mihai28 asked:

Open original thread
I want to build an application with an audio recorder function using Qt Mobility. In this application I have the following code in RecordSound.cpp file:
RecordSound::RecordSound(QWidget *parent)
{
...
        
     connect(ui.buttonStartRecording, SIGNAL(clicked()), this, SLOT(startRecording()));
...
}
void RecordSound::startRecording()
{
    ui.lineEdit->setEnabled(false);
    timer->start(1000);
    time->setHMS(0,0,0);
    QString text = time->toString("hh:mm:ss");
    ui.lcdNumber->display(text);
    connect(this->timer, SIGNAL(timeout()), this, SLOT(runTime()));
    if(fileName.length()!=0)
	fileName.append(".wav");
    else fileName="unknown.wav";
    file   = new QFile(fileName);
    file->open(QIODevice::WriteOnly | QIODevice::Truncate );
    capture = new QMediaRecorder(audiosource);
    QStringList devices=listDevice();
    audiosource->setAudioInput(devices[0]);
	QAudioEncoderSettings audioSettings;
    audioSettings.setCodec("audio/raw");
    audioSettings.setSampleRate(96000);
    audioSettings.setQuality(QtMultimediaKit::HighQuality);
    capture->setEncodingSettings(audioSettings);
    capture->setOutputLocation(fileName);
    audiosource->setNotifyInterval(1000);
}
...
void RecordSound::recordSound()
{
    capture->record();
}
...
What should I add or change in this file to record sounds from your sound card?
Tags: C++, Multimedia, QT

Preview



When answering a question please:
  1. Read the question carefully.
  2. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
  3. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Let's work to help developers, not make them feel stupid.
Please note that all posts will be submitted under the The Code Project Open License (CPOL).



Advertise | Privacy | Mobile
Web01 | 2.8.140916.1 | Last Updated 26 Mar 2009
Copyright © CodeProject, 1999-2014
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100