Vocal Booth: Record Over Beats

Vocal tune studio for your own beats: record over beats on headphones, tune the take to a key after recording, mix it and export. Vocal Booth writes each take to storage while you sing and keeps your beat exactly as it is.

▶ TAKES THAT SURVIVE A CRASH
• Your take is written to storage while you sing, saved about every half second.
• If the app crashes or is closed while recording, the take is recovered the next time you open it — up to the last saved moment (about half a second).
• Switching apps or locking the screen ends the take, and what was recorded is kept.
• Song edits save automatically, within 2 seconds of your last change.
• Deleted songs and takes can be brought back with Undo.

▶ YOUR BEAT, UNTOUCHED — WITH PROOF
• The beat is mixed as it is: not stretched and not pitch-shifted. Only a beat whose sample rate is not 44.1 or 48 kHz is converted, and its length is kept.
• After every export the app reads the finished file back and shows what is really in it: length, beat length, sample rate, stereo or mono and peak level.
• The output is limited to −1 dBFS so it does not clip.

▶ TUNE AFTER YOU RECORD
• Pick the key (12 notes) and the scale: major, minor, harmonic minor, major pentatonic, minor pentatonic, blues or chromatic.
• Strength from off to 100 %, retune speed from instant to 400 ms, and Keep vibrato.
• The TUNE lane shows the detected pitch in grey and the tuned line in cyan.
• The raw take is never changed — retune it again with other settings at any time.

▶ RECORD OVER YOUR BEAT
• Pick a beat file from your phone (for example MP3, M4A or WAV), up to 15 minutes long.
• Takes of up to 10 minutes each, numbered T1, T2 … on a timeline with BEAT, VOCAL and TUNE lanes, zoom and loop.
• Calibrate timing for your headphones: tap along with 8 clicks for an estimated alignment offset, then fine-tune any take with the Nudge slider (±250 ms).
• Open the demo song to try tuning and export right away: its beat and a slightly sharp sung tone are generated on your device.

▶ MIX AND EXPORT
• Vocal level and beat level from −24 to +6 dB, plus reverb. Play and Export use the same mix.
• Export M4A (AAC 192 kbps) or WAV 16-bit, as the full mix or the tuned vocal only.
• Share the file or save it to your device.
• Create a backup of your songs with their audio and restore it later.

▶ GOOD TO KNOW
• Tuning happens after recording, not live while you sing, and your voice is not played back in the headphones while recording.
• Works on one voice at a time. Breaths and consonants are left untouched.
• Beats are not supplied: you bring your own beat file.
• Recording runs only while the app is open on screen.
• Bluetooth headphones add delay — calibrate that route and check the timing. Wired headphones are recommended.
• Audio is processed on your device. The app uploads nothing; you can export or share it to a destination you choose.
• Ads appear on the song list and occasionally when you return to the app or after an export — never while you record, play or export.

Recent changes:
Sing over your own beat file and stack up takes.
Tune take pulls the recorded voice toward your chosen Key, with Keep vibrato as an option.
Calibrate timing helps line takes up with the beat; Mix balances levels and reverb before an M4A or WAV export.