FixYourDeck vs MicButton

FixYourDeck turns your iPhone and a class-compliant USB audio interface into a complete measurement bench for cassette decks — the instruments a service workshop used to need a rack for. MEASURE • Frequency response 20 Hz – 20 kHz, both channels, with -3 dB bandwidth and chain-baseline subtraction • Wow & flutter to IEC 386 / DIN 45507 (weighted peak, weighted and unweighted RMS, wow/flutter split) with a flutter spectrum that names the worn rotating part • Speed error and long-term speed drift • Noise and signal-to-noise (flat, A-weighted, CCIR-468), MOL and SOL, dynamic range • Azimuth with live level, phase and inter-channel timing meters — set the azimuth of discrete heads with ease, using the special azimuth test tape or any well-recorded prerecorded tape • Diagnostics: modulation noise, crosstalk, erase efficiency, dropout counter ALIGN Guided assistants for bias (over-bias from the 10 kHz peak), record level / Dolby level, azimuth and playback alignment with a calibration tape — live meters you can turn a screwdriver against. TEST ANY DECK, EVEN A WALKMAN Record the self-describing Measurement Test Tape once on a good deck; each segment announces itself with a digital marker. Play it on any two-head deck or portable and the app grades frequency response, wow & flutter, speed drift and azimuth from playback alone — no monitoring head needed. DOCUMENT Every deck is a profile with its own calibration and saved sessions. Compare before and after service, and export one PDF — the Deck Measurement Protocol — with every value tabulated. TOOLS Oscilloscope (Y-T and Lissajous), tone generator, real-time 1/3-octave analyzer, level meters. WHAT YOU NEED A class-compliant USB audio interface with a stereo line input and output (e.g. a 2-in/2-out interface), cables to the deck's line in/out, and a blank tape. The speed check works with the built-in microphone alone. FREE AND PRO Speed and frequency measurement are free. FixYourDeck Pro — a one-time purchase, no subscription — unlocks all other measurements, the alignment assistants, diagnostics and protocol export. Made by cassette-deck restorers, in 16 languages. No account, no analytics, no data collection: everything stays on your device.

MicButton is your physical mute button for working by voice. It lets you mute or unmute your Mac’s system microphone from your Apple Watch or iPhone Action Button without leaving a ChatGPT Voice or Codex conversation. Whether you're stepping away for a quick side conversation during a video call or working alongside a voice assistant that shouldn't hear you talking to someone else, MicButton lets you mute in an instant — right from your wrist or phone. It’s a master mute switch. MicButton mutes your Mac’s system microphone itself rather than muting inside a single app — so when it’s off, nothing running on your Mac is listening: not a call, not a browser tab, not an assistant. Your mic is off because you turned it off, and you can confirm it from your wrist without walking back to your desk. FEATURES • One-tap mute/unmute from Apple Watch • iPhone Action Button and Lock Screen control support • Live mute status shown in the Dynamic Island • Mutes the Mac’s system microphone at the source, not inside a single app • Works entirely over your local network — no internet connection required, and no audio ever leaves your devices • Lightweight menu bar app that stays out of your way MicButton is built for anyone who works from a Mac and wants mute control without breaking their flow.