What Is Bit Depth?
Updated October 2026
Bit depth is how finely a recording measures how loud each sample is. 16 bit is the CD standard, 24 bit gives more room for editing, and 32 bit float is common in editors.
The short version
- Bit depth sets the precision of each measurement: 16, 24 or 32 bit.
- 16 bit is the CD standard and is enough for playback.
- 24 bit gives more room for editing and quieter sections without noise.
- Edit at 24 or 32 bit float, and export to 16 bit only for the final format that needs it.
The short definition
Bit depth is the number of bits used to store each measurement of the sound. More bits give a finer scale, so quiet sounds are described more precisely and the noise floor of the recording is lower. It does not change the sample rate, which is how often the sound is measured.
16, 24 and 32 bit
- 16 bit: the CD standard. Enough for playback, but less room for editing.
- 24 bit: common for recording and editing. A safe master for voice.
- 32 bit float: used inside many editors. It handles very large changes in level without clipping inside the editor.
What to do
Record and edit at 24 bit or higher. Keep the master at 24 bit. Export to 16 bit only when a platform or a format asks for it, usually at the very end. Each step down is a loss you cannot undo.
Does it change how a voice sounds?
Only in the quiet detail, and only when you cut or boost a lot. A voice recorded and exported at 24 bit sounds the same as at 16 bit on most devices. The difference is the room you keep for editing.
Edit at 24 bit, export what you need
Tunedzy keeps a higher-precision master and exports the format you choose, so editing does not cost detail.
Free tools for this
Frequently asked questions
Is 16 bit enough for podcasts?
For listening, yes. Edit and keep the master at 24 bit, then export 16 bit or MP3 at the end if you need to.
Does 24 bit make a file louder?
No. It changes the precision, not the level.
What is 32 bit float?
A format editors use internally. It keeps the sound precise through many changes.
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