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QAudioBuffer Class | Qt Multimedia 5.15.8
https://doc.qt.io/qt-5/qaudiobuffer.html
QAudioBuffer:: QAudioBuffer ( int numFrames, const QAudioFormat & format, qint64 startTime = -1) Creates a new audio buffer with space for numFrames frames of the given format. The individual samples will be initialized to the default for the format. startTime (in microseconds) indicates when this buffer starts in the stream.
QAudioBuffer Class | Qt Multimedia 6.2.1
https://doc.qt.io/qt-6/qaudiobuffer.html
QAudioBuffer is used by the QAudioDecoder class to hand decoded audio data over to the application. An audio buffer contains data in a certain QAudioFormat that can be queried using format (). It is also tagged with timing and duration information. To access the data stored inside the buffer, use the data () or constData () methods.
Converting audio sample buffer format
https://libav-user.ffmpeg.narkive.com/nUZPysY6/converting-audio-sample-buffer-format
The audio data received from QTKit capture is a data structured contained within QTSampleBuffer, which has the following description: Linear PCM, 32 bit little-endian floating point, 2 channels, 44100 Hz
QTKit Capture - Apple Inc.
https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/QTKitApplicationProgrammingGuide/UsingQTKit/UsingQTKit.html
Utility Classes. There are three classes belonging to this group: QTCompressionOptions, QTFormatDescription, and QTSampleBuffer, shown in Table 2-3.These are best characterized as utility classes, in that they perform tasks related to representing, for example, the compressions for particular media, or describing the formats of various media samples. ...
Qt Audio Input - GitHub Pages
https://svenssonjoel.github.io/pages/qt-audio-input/index.html
Bo Joel Svensson blog (dot) joel (dot) svensson (at) gmail (dot) com Audio input using Qt and QAudioInput. When working on the earlier blog post on serial communication with automatic data collection and plotting, I thought that maybe it would be nice to try to plot some audio waveforms as well. Now, to do that we need an audio source and I went for using a QAudioInput for that.
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