Mastering GUI Programming with Python

Implementing recording

The audio recording in Qt is facilitated by the QAudioRecorder class. Just as the QMediaPlayer class was analogous to a media playback device, the QAudioRecorder class is analogous to a media recording device such as a digital audio recorder (or, if you're of the author's generation, a tape recorder). The recorder is controlled using the record(), stop(), and pause() methods, much like the media player object.

Let's add a recorder object to our SoundWidget, as follows:

        self.recorder = qtmm.QAudioRecorder()

To control the recorder, we'll create another dual-function button class that is similar to the play button that we previously created:

class RecordButton(qtw.QPushButton): record_stylesheet = 'background-color: ...