Audio Freezer

Keep your DAC at its best sample rate, automatically.

macOS doesn't reliably remember the sample rate of USB DACs. Every time the device powers up, reconnects, or the Mac wakes, Core Audio quietly snaps it back to a default like 44.1 or 48 kHz, even when your DAC supports 96 or 192 kHz. Audio MIDI Setup has no "always use this rate" option. Audio Freezer is that missing option.

It lives in your menu bar, watches your audio devices, and the instant one resets, it puts the rate right back. No polling, no driver, no fuss.

What it does • Locks each device to its highest supported rate, or a rate you pin • Re-applies the moment a device reconnects or macOS resets it • Shows the live format reaching your DAC: bit depth · sample rate · channels • Flags when the signal is bit-perfect, and steps aside for exclusive players • Per-device sample rate, remembered volume, and a "monitored" main device • Quiet menu-bar app with no Dock icon, and a frequency-analyser animation while audio plays • Remembers every device it has ever seen, even ones currently unplugged

Built for USB DAC owners, headphone listeners, and anyone who wants their hi-fi chain to stay at the rate they chose without babysitting Audio MIDI Setup.

Private by design No accounts, no analytics, no network. Everything stays on your Mac.

Pricing Free to download with a 7-day trial. After that, a one-time fee unlock keeps device management running forever. The app stays usable either way.