audio in, AAC out: free, no signup, and both files delete themselves within an hour.
One file at a time for now
Batch processing isn't available yet: drop files one by one, or use the Merger to join them.
Try another fileConverting audio to AAC is free: drop your audio above, hit convert, and download the AAC. Files delete themselves within an hour.
Whatever kind of audio you're holding: a voice memo, a session export, something a client sent: flipping it to AAC gets you a file built for streaming-grade sound at friendly file sizes. Flippy reads practically any audio format and writes clean AAC, so you don't even need to know what the original is.
A classic audio to AAC job: voice memos, downloads and session exports, bound for streaming-grade playback at friendly sizes.
Whatever the recording, audio just wants to be heard: the trick is picking a shape that plays where you need it. It comes from wherever your camera, screen recorder or download made it.
AAC is MP3's better-trained successor: cleaner sound from the same number of bits. Advanced Audio Coding: the default soundtrack of YouTube, iTunes and most MP4 video. That makes it the right destination when what you need is streaming-grade sound at friendly file sizes.
Drop your audio file into the flipper above, or click to browse for it.
Check the output format: AAC is already selected for you.
Hit Convert, give it a moment, then download your new AAC.
Settings guidance for any audio file to AAC: AAC turns transparent for most ears around 192 to 256 kbps, and it degrades more gracefully than MP3 below that. Flippy handles the codec choices, so the only real decision was picking AAC.
| audio | AAC | |
|---|---|---|
| Born | wherever your microphone, DAW or download came from | 1997, an MPEG all-star team: Fraunhofer, Dolby, Sony, AT&T and Nokia |
| Type | audio · any format | audio · lossy |
| Best for | any sound file: music, voice memos, podcasts, session exports | streaming-grade sound at friendly file sizes |
| Weak spot | nothing in particular; the limits belong to whichever format it happens to be wearing | older or stubborn hardware that only ever learned MP3 |
| Typical size | anywhere from tiny voice notes to studio-sized masters | similar to MP3, but it sounds better at the same bitrate: or the same at about 25% smaller |
| Plays on | Depends entirely on the format it lands in. | Apple everything, YouTube, Android, modern players; patchy on legacy gear. |
Flippy always picks the gentlest path: container swaps and extractions copy your streams untouched, and re-encodes happen once, at quality matched to the source.
It depends on the format you pick as the output: lossy formats land a few megabytes per minute, lossless several times that.
Apple everything, YouTube, Android, modern players; patchy on legacy gear. That's the usual reason people leave audio behind: AAC simply opens in more of the places that matter.
Seconds for most files: audio is light work. A long recording might take a minute; your file auto-deletes from our servers within an hour either way.