Save storage on long recordings
A day of recording can fill a phone faster than you'd think. Here's what each quality tier is for, and how big WAV files really get.
Use Lossless when the audio is going into an edit. Use one of the four AAC tiers when you just need to capture the talk and keep space free.
The five tiers
| Lossless | 48 kHz, 16-bit PCM WAV (or 32-bit float). About 5.8 MB per minute, mono |
| Studio | 48 kHz AAC at 256 kbps. About 1.9 MB per minute |
| High | 44.1 kHz AAC at 128 kbps. About 1.0 MB per minute |
| Balanced | 32 kHz AAC at 96 kbps. About 0.7 MB per minute |
| Voice saver | 16 kHz AAC at 48 kbps. About 0.4 MB per minute |
Those sizes are the ones Flowphonic shows in Settings. Some features, like the input FX chain, the safety track and pre-roll, only work in Lossless.
How big is WAV, really?
Here's the maths for 48 kHz audio, per hour:
- 16-bit mono: about 346 MB (the app says roughly 5.8 MB a minute)
- 16-bit stereo: about 691 MB
- 32-bit float mono: about 691 MB
- 32-bit float stereo: about 1.4 GB
The safety track is a second file, so it adds the same again. A four-hour interview day in stereo with a safety copy gets big quickly.
Which one should you pick?
- Editing, mixing, anything you'll process: Lossless.
- Long meetings or lectures you just want a record of: Balanced or Voice Saver.
- In between: High or Studio.
When you finish a shoot, export what you need and clear out what you don't. The app keeps your library until you delete things or uninstall.
Quick answers
How much space does a WAV take?
At 48 kHz, 16-bit mono is about 346 MB per hour. Stereo is double that, and 32-bit float doubles it again.
Which tier is smallest?
Voice Saver, which saves AAC at 16 kHz.