Recommended import settings for every type of audio in your Unity project.
Unity audio import settings have a huge impact on memory, load times, and sound quality. The defaults are rarely optimal. This reference gives you the exact Load Type, Compression Format, Sample Rate, and other settings for each category of audio, with explanations of why each choice matters.
Select audio asset
Inspector
Audio Import Settings
File Format Comparison
Which format to use as your source file before Unity re-encodes it.
Format
Compression
Lossy
Loop Safe
Licence Free
Best For
Avoid
.wavWaveform Audio (WAV)
None (PCM)
No
Yes
Yes
Source files, short SFX, UI sounds
Shipping long files (music, dialogue)
.oggOgg Vorbis
Lossy (Vorbis)
Yes
Yes
Yes
Music, ambient loops, dialogue, any compressed audio
Nothing; Ogg is the best general-purpose game audio format
.mp3MPEG Layer 3
Lossy (MP3)
Yes
No
No
Legacy compatibility
Seamless loops (adds padding), commercial projects without licence
.aiffAudio Interchange (AIFF)
None (PCM)
No
Yes
Yes
macOS workflows, same quality as WAV
No advantage over WAV for game dev
.flacFree Lossless Audio Codec
Lossless
No
Yes
Yes
Archival source files, lossless delivery
No native Unity playback; Unity re-encodes to Vorbis