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EarTrumpet vs SoundVolumeCommandLine: catalog facts
EarTrumpet	SoundVolumeCommandLine
Free Free and open source.	Free Freeware from NirSoft, free to use and redistribute without charge.
Windows	Windows, Command line
Per-app volume sliders from the taskbar Quicker than opening the Windows volume mixer	Per-application volume and mute control from scripts Switches default playback and recording devices
Windows only Focused on volume control rather than audio effects or routing	No support for Windows XP or older Command reference is on the SoundVolumeView page
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Freeware
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.