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JUCE: Tutorial: Draw audio waveforms
https://docs.juce.com/master/tutorial_audio_thumbnail.html#:~:text=Drawing%20an%20audio%20waveform%2C%20especially%20for%20long%20files%2C,and%20updated%20when%20needed.%20Setting%20up%20the%20AudioThumbnail
Drawing Audio Waveforms with the Accelerate Framework ...
http://www.davidstarke.com/2015/04/waveforms.html
Drawing a waveform from an audio file involves three steps: Getting the audio data Calculating the values you want to draw Drawing the values into a graphics context. Most of the interesting stuff I am going to talk about happens in step 2 (calculating the values).
Audio WaveForm Drawing Using WPF - Mark Heath
https://www.markheath.net/post/audio-waveform-drawing-using-wpf
We get the numsamples of the canvas. Then we can calculate the numSamples required for onbe pixel. For the num samples we calculate the avg-value. We split the view into let's say 10 Blocks and we convert the audiodata to a 8 bit waveform in a memory bitmap using a backgroundthread. Then we blitting the bitmap into the display - not drawing directly.
c++ - Algorithm to draw waveform from audio - Stack …
https://stackoverflow.com/questions/26663494/algorithm-to-draw-waveform-from-audio
ffmpeg can draw a waveform with the showwavespic filter. ffmpeg -i input -filter_complex "showwavespic=split_channels=1" output.png See showwavespic filter documentation for options. showwaves. You can also make a video of the live waveform with the showwaves filter.
Waveformer - Visualizing your audio in vector waveforms
https://www.misha.studio/waveformer/
Waveformer. A simple web app for visualizing audio waveforms in vector (svg) format. Start drawing your audio by choosing or dropping your audiofile on here. Or try a sample file.
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