Process Microphone voice using Qt

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C++

QT

Hi,

I am developing one sound processing application using Qt as front end
For that how we get data samples from a microphone and need to process it using Open Source SoundToch library,

The method I need to implement as given below

m_soundTouch.putSamples((SAMPLETYPE*)block->lpData, block->dwBufferLength / sizeof(SAMPLETYPE));


I tried by overriding qint64 writeData(const char *data, qint64 len); in QIODevice but i failed to implement above method and change its pitch and produce new voice as output in speaker



Thanks,
Arun Kumar K S