How to record and play sound simultaneously

[arunkumaraymuo1]

start the input and output device like this

m_output= m_audioOutput->start();
    m_input = m_audioInput->start();
    connect(m_input, SIGNAL(readyRead()), SLOT(readMore()));

m_output= m_audioOutput->start();
    m_input = m_audioInput->start();
    connect(m_input, SIGNAL(readyRead()), SLOT(readMore()));

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and write the input sample to output in readMore()

m_output->write(outdata, len);

m_output->write(outdata, len);

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Check this article in code project that record from microphone and play back to speaker simultaneously

http://www.codeproject.com/Articles/...essing-Utility