Audacity has no built-in pitch correction, so this guide installs the free Graillon 3 through MuseHub, adds it as a realtime effect in Audacity 4, sets the key, dials a natural fix or the hard-tuned effect, and exports — plus which other free tuners still load in Audacity 4 and the mistakes that make tuning sound wrong.
Capture what your computer is playing in Audacity 4: the Windows loopback route in full, the macOS route with BlackHole, Linux in brief, the settings that stop silent or echoing takes, and how to clean the capture afterwards.
Audacity transcribes audio to text for free, offline, through the Whisper Transcription effect in the OpenVINO AI Tools plugin. It runs in Audacity 3.7.x and does not run in Audacity 4 yet. The words land on a label track under your recording, and you export them as plain text, SRT or WebVTT subtitles.
No — Audacity installs and runs without MuseHub. What each download option on audacityteam.org installs, what MuseHub keeps running in the background, whether you need an account, how to uninstall MuseHub and keep Audacity, whether Audacity is free and what the charges people see are for, and the facts behind ‘is Audacity safe’: the GPL license, the 2021 telemetry controversy and what the app collects today.
To record audio in Audacity 4, plug in your microphone and pick it under Audio setup ▸ Recording device. Set the level so your voice peaks between −18 and −6 dB, select a mono track and press Record (R). The take lands on the selected track; Record on new track leaves the existing tracks alone, which is how you layer a second part over the first.