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<p>Dear sound/audio folks and engineers,</p><p>I have a directory with 3.5GiB of audio files (chiefly opus & m4a) which are spoken word recordings.</p><p>Some of them are quite low, and some of them are quite dynamic such that it's a whisper at times and nearly a shout at other times.</p><p>I've processed a lot of them with <a href="/tags/audacity/" rel="tag">#audacity</a>'s compressor filter or <a href="/tags/ffmpeg/" rel="tag">#ffmpeg</a> (ffmpeg -i audio.m4a -filter:a "speechnorm=e=50:r=0.0001:l=1" audio-normalized.m4a), but there are some unprocessed files in the collection, which are a pain to individually find and fix.</p><p>Is there a way from the <a href="/tags/commandline/" rel="tag">#CommandLine</a> to detect the loudness and/or dynamic range of audio files so that I can automatically flag them for processing with ffmpeg?</p><p>Thanks!!</p><p><a href="/tags/audio/" rel="tag">#audio</a> <a href="/tags/sound/" rel="tag">#sound</a> <a href="/tags/soundengineering/" rel="tag">#SoundEngineering</a> <a href="/tags/askfedi/" rel="tag">#AskFedi</a> <a href="/tags/hivemind/" rel="tag">#HiveMind</a></p>
audacity
<p>2025 <a href="/tags/introduction/" rel="tag">#Introduction</a> update:</p><p>Currently finishing up what has become a 14-year project of producing an 18-minute <a href="/tags/freeculture/" rel="tag">#FreeCulture</a> <a href="/tags/openmovie/" rel="tag">#OpenMovie</a> <a href="/tags/scifi/" rel="tag">#SciFi</a> <a href="/tags/animation/" rel="tag">#Animation</a> pilot episode using <a href="/tags/freesoftware/" rel="tag">#FreeSoftware</a> authoring tools like <a href="/tags/blender3d/" rel="tag">#Blender3D</a> <a href="/tags/kdenlive/" rel="tag">#Kdenlive</a> <a href="/tags/audacity/" rel="tag">#Audacity</a> and more.</p><p>Hopefully episode 2 will go faster!</p><p>I have a professional account where I talk mostly about that at</p><p><a href="https://m.filmfreedom.net/@TerryHancock" rel="nofollow">@[email protected]</a> </p><p>net and a "Production Log" at </p><p><a href="https://lunaticsproject.org" rel="nofollow"><span class="invisible">https://</span>lunaticsproject.org</a></p><p>Also a <a href="/tags/pixelfed/" rel="tag">#Pixelfed</a> for the project at <span class="h-card"><a href="https://px.filmfreedom.net/lunatics" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>lunatics</span></a></span> </p><p>[1/3]</p>
Edited 1y ago