The FFMPEG Way To Deal With Your Audio: Extract - Waveform - Spectrogram - High/Low Pass Filters

In this video we deal with audio: we use ffmpeg to manage and record an audio stream using an audio input device available in the system.
We also use ffmpeg to produce the audio waveform as a single image and as video, also we see how to produce the spectrogram.
In the end, we also use the low pass and the high pass filters to cut out the frequency respectively above and below the given frequency.
For any questions or doubts, feel free to write a comment down below!
Further reference about screen recording:
► trac.ffmpeg.org/wiki/Capture/...
► trac.ffmpeg.org/wiki/Waveform
► ffmpeg.org/ffmpeg-filters.htm...
► ffmpeg.org/ffmpeg-filters.htm...
► ffmpeg.org/ffmpeg-filters.htm...
► ffmpeg.org/ffmpeg-filters.htm...
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🎼🎵🎶 MUSIC CREDIT 🎶🎵🎼
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► Evolution - Royalty Free Music by Benjamin Tissot
www.bensound.com/royalty-free...
► Lethal
Karl Casey @ White Bat Audio
► Hunted by Machines
Karl Casey @ White Bat Audio
► Digital Sunset
Karl Casey @ White Bat Audio
► "Local Forecast - Elevator" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/b...
📖 CHAPTERS 📖
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00:00 Intro
00:51 Environment Variables settings for the ffmpeg executable folder
03:20 Extraction of the audio track and ffplay usage
05:50 Record audio using an input device
09:07 Producing a waveform picture out of an audio file
10:55 Separate the channels output in the waveform
12:41 Amplify the waveform output
14:26 Waveform as video
19:50 Spectrogram of an audio input
21:55 High pass and low pass filters
25:46 Conclusions
#devstefit #ffmpeg #audio

[@Inoinovation]

Thanks❤👍

[@devstefit]

Thank for watching! 😎

[@maykasaharav2k385]

When I make a scrolling drawtext how to define at what exact time the scroll text starts?

[@devstefit]

I will make a video for that. Stay tuned! And thanks for watching 😎

[@default2043]

Amazing video! Just one question, is there a way to list audio input devices only instead of listing every device?

[@devstefit]

Thank you very much! Thanks for watching!
As far as I know, with Directshow you can't select the individual devices or some types, but you can use findstr to get the element you want

[@ultravisitors]

please make a video comparing AV1 H265 and H264 with NVENC?

[@devstefit]

It will be ready soon! I am working on it 👍🏻