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TOVUsing FFmpeg to generate a waveform from a 3 second MP3 file.ffmpeg -i 3.mp3 -filter_complex "showwavespic=s=800x250" -frames:v 1 3f.pngThe default colors for a JPG file is a red waveform on a black background.The default colors for a PNG file is a red waveform on a transparent background.<a href="https://trac.ffmpeg.org/wiki/Waveform" rel="nofollow noopener" translate="no" target="_blank">https://trac.ffmpeg.org/wiki/Waveform</a><a href="https://fosstodon.org/tags/FFmpeg" class="mention hashtag" rel="nofollow noopener" target="_blank">#FFmpeg</a> <a href="https://fosstodon.org/tags/waveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#waveform</a> <a href="https://fosstodon.org/tags/JPG" class="mention hashtag" rel="nofollow noopener" target="_blank">#JPG</a> <a href="https://fosstodon.org/tags/PNG" class="mention hashtag" rel="nofollow noopener" target="_blank">#PNG</a> <a href="https://fosstodon.org/tags/MP3" class="mention hashtag" rel="nofollow noopener" target="_blank">#MP3</a>

TOVTo generate a waveform using the audiowaveform library, we need to do it in two steps.Step 1: Create a binary format (.dat) file from the audio file audiowaveform -i 3.mp3 -o 3.dat -z 256 -b 8Step 2: Generate a image (.png) file using the binary data audiowaveform -i 3.dat -o 3.png -z 256<a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/Ubuntu" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ubuntu</a> <a href="https://fosstodon.org/tags/audiowaveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#audiowaveform</a> <a href="https://fosstodon.org/tags/waveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#waveform</a> <a href="https://fosstodon.org/tags/MP3" class="mention hashtag" rel="nofollow noopener" target="_blank">#MP3</a> <a href="https://fosstodon.org/tags/WAV" class="mention hashtag" rel="nofollow noopener" target="_blank">#WAV</a> <a href="https://fosstodon.org/tags/FLAC" class="mention hashtag" rel="nofollow noopener" target="_blank">#FLAC</a> <a href="https://fosstodon.org/tags/Ogg" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ogg</a> <a href="https://fosstodon.org/tags/Vorbis" class="mention hashtag" rel="nofollow noopener" target="_blank">#Vorbis</a> <a href="https://fosstodon.org/tags/Opus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Opus</a>

TOVaudiowaveform is a C++ command-line application that generates waveform data from either MP3, WAV, FLAC, Ogg Vorbis, or Opus format audio files. Waveform data can be used to produce a visual rendering of the audio.How to Install <a href="https://github.com/bbc/audiowaveform?tab=readme-ov-file#installation" rel="nofollow noopener" translate="no" target="_blank">https://github.com/bbc/audiowaveform?tab=readme-ov-file#installation</a>Install on Ubuntu sudo add-apt-repository ppa:chris-needham/ppa sudo apt-get update sudo apt-get install audiowaveform<a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/Ubuntu" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ubuntu</a> <a href="https://fosstodon.org/tags/audiowaveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#audiowaveform</a> <a href="https://fosstodon.org/tags/waveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#waveform</a> <a href="https://fosstodon.org/tags/MP3" class="mention hashtag" rel="nofollow noopener" target="_blank">#MP3</a> <a href="https://fosstodon.org/tags/WAV" class="mention hashtag" rel="nofollow noopener" target="_blank">#WAV</a> <a href="https://fosstodon.org/tags/FLAC" class="mention hashtag" rel="nofollow noopener" target="_blank">#FLAC</a> <a href="https://fosstodon.org/tags/Ogg" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ogg</a> <a href="https://fosstodon.org/tags/Vorbis" class="mention hashtag" rel="nofollow noopener" target="_blank">#Vorbis</a> <a href="https://fosstodon.org/tags/Opus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Opus</a>

TOVWavesurfer.js is an interactive waveform rendering and audio playback library, perfect for web applications. It leverages modern web technologies to provide a robust and visually engaging audio experience.GitHub <a href="https://github.com/katspaugh/wavesurfer.js" rel="nofollow noopener" translate="no" target="_blank">https://github.com/katspaugh/wavesurfer.js</a><a href="https://fosstodon.org/tags/JavaScript" class="mention hashtag" rel="nofollow noopener" target="_blank">#JavaScript</a> <a href="https://fosstodon.org/tags/Wavesurfer" class="mention hashtag" rel="nofollow noopener" target="_blank">#Wavesurfer</a> <a href="https://fosstodon.org/tags/waveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#waveform</a> <a href="https://fosstodon.org/tags/wave" class="mention hashtag" rel="nofollow noopener" target="_blank">#wave</a> <a href="https://fosstodon.org/tags/surfer" class="mention hashtag" rel="nofollow noopener" target="_blank">#surfer</a> <a href="https://fosstodon.org/tags/wave" class="mention hashtag" rel="nofollow noopener" target="_blank">#wave</a> <a href="https://fosstodon.org/tags/audio" class="mention hashtag" rel="nofollow noopener" target="_blank">#audio</a> <a href="https://fosstodon.org/tags/sound" class="mention hashtag" rel="nofollow noopener" target="_blank">#sound</a>

TOVKdenlive 25.04.0 has been released. This version brings much improvement to audio waveforms in timeline. A nice refactoring was done by Etienne André to make the audio thumbnails faster and more precise.<a href="https://etiand.re/posts/2025/01/audio-waveforms-in-kdenlive-technical-upgrades-for-speed-precision-and-better-ux/" rel="nofollow noopener" translate="no" target="_blank">https://etiand.re/posts/2025/01/audio-waveforms-in-kdenlive-technical-upgrades-for-speed-precision-and-better-ux/</a><a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/KDE" class="mention hashtag" rel="nofollow noopener" target="_blank">#KDE</a> <a href="https://fosstodon.org/tags/Kdenlive" class="mention hashtag" rel="nofollow noopener" target="_blank">#Kdenlive</a> <a href="https://fosstodon.org/tags/video" class="mention hashtag" rel="nofollow noopener" target="_blank">#video</a> <a href="https://fosstodon.org/tags/editor" class="mention hashtag" rel="nofollow noopener" target="_blank">#editor</a> <a href="https://fosstodon.org/tags/waveform" class="mention hashtag" rel="nofollow noopener" target="_blank">#waveform</a>

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