Audio Studio Pro

Audio Studio Pro is a complete audio workstation for Android — editor, recorder,
converter, ringtone maker and multi-track mixer — and every single thing it does happens
on your device.

No account. No sign-in. No cloud. Your recordings and music files are never uploaded, and
the app works perfectly with the device in aeroplane mode.

WAVEFORM EDITOR
• Zoom, pan and scrub a real waveform
• Millisecond-accurate selection with editable timecodes
• Cut, trim, delete, split and join — non-destructive, your original is never modified
• 60 levels of undo and redo
• Fade in and out with linear, logarithmic and exponential curves
• Silence detection and removal

SMART MERGE
Joining audio is easy when the files match. Smart Merge handles the case where they
don't. It reads the real sample rate, channel layout and loudness of every file, chooses
one coherent target, and shows you the plan before it writes anything.

• Automatic sample rate and channel layout, or set them yourself
• Crossfades between tracks, clamped sensibly when a track is too short
• Gaps between tracks
• Loudness normalisation (EBU R128) per track or across the whole result
• A limiter so a joined file never clips
• A plan preview you approve before a single byte is written

RECORDER
• High-quality recording with a live level meter
• Pause and resume
• Keeps recording with the screen off
• Choose your sample rate, channels and output format

CONVERTER
MP3, M4A/AAC, AAC, WAV, WAV 24-bit, FLAC, OGG Vorbis, Opus, AIFF and ALAC. Resample,
change channels, set bit rate and quality, edit metadata and artwork. Queue a batch and
walk away — it survives the app being closed.

EFFECTS
22 effects, chainable in any order: volume, bass, treble, parametric EQ, echo, reverb,
compressor, limiter, gate, noise reduction, reverse, speed, tempo, pitch, mono and stereo
conversion, silence removal, high-pass, low-pass and stereo widening.

MULTI-TRACK
Unlimited tracks. Per-track gain, balance, mute and solo. Per-clip gain and fades.
Timeline editing, a master limiter, and a full mixdown.

RINGTONES
Cut any part of any song and set it as your ringtone, notification sound or alarm.

MY WORK
Everything the app makes — every trim, merge, conversion and recording — is listed in one
place, newest first, and saved straight into your Music folder where any other app can
find it. Play it, share it, or take it back into the editor in one tap.

ALSO
• Playback with gapless seeking
• Recents, favourites and saved projects
• Light and dark themes
• Phone, tablet and foldable layouts, portrait and landscape
• Works on Android 8.0 and above

PRIVACY
Audio Studio Pro processes everything locally. It cannot see your files, and neither can
we — there is no server to send them to. The app asks for internet access only so the ad
component can load ads; nothing about your audio uses the network.

FREE, AND FREE MEANS FREE
Every audio feature works without paying and without watching an ad. There are no
subscriptions, no in-app purchases and no locked "pro" version. The app shows a banner,
and offers optional rewarded videos for a few convenience extras — you choose whether to
watch one, and the editing itself never depends on it.

Built on FFmpeg. Open source licences are listed in the app under Settings → About.