## The Main Audio Formats
### MP3 — The Universal Standard
- **Type**: lossy compression
- **Bitrate**: 128-320 kbps
- **Compatibility**: 100% — works on every device ever made
- **Best for**: general distribution, podcasts, music on storage-limited devices
### AAC — The MP3 Successor
- **Type**: lossy compression
- **Compatibility**: excellent on Apple, good on Android and PC
- **Quality**: better than MP3 at same bitrate (~20% more efficient)
- **Best for**: Apple Music, YouTube, iOS podcasts, modern streaming
### OGG Vorbis — The Open Alternative
- **Type**: lossy compression
- **Compatibility**: good on PC/Android; limited on iOS
- **Best for**: games (Minecraft, Unity), open-source applications
### FLAC — The Free Lossless
- **Type**: lossless compression
- **Quality**: mathematically identical to the original
- **Best for**: archival, hi-fi collections, audio mastering
### WAV — Uncompressed Audio
- **Type**: uncompressed (PCM)
- **Bitrate**: 1411 kbps (CD: 44.1 kHz / 16-bit stereo)
- **Best for**: music production, mixing, mastering, editing
## Format Comparison Table
| Format | Type | Size (3 min) | Compatibility |
|--------|------|--------------|---------------|
| MP3 320k | Lossy | ~7 MB | Universal |
| AAC 256k | Lossy | ~6 MB | Very good |
| OGG 192k | Lossy | ~4 MB | Good |
| FLAC | Lossless | ~20-30 MB | Good |
| WAV | Uncompressed | ~30 MB | Very good |
## What Format to Use
| Situation | Format |
|-----------|--------|
| Listening on mobile | AAC 256k or MP3 320k |
| Uploading to Spotify/Apple Music | WAV or FLAC (platform re-encodes) |
| Podcast | MP3 128-192 kbps mono |
| Archiving | FLAC |
| Music production | WAV 24-bit / 48 kHz |
| Game sound effects | OGG Vorbis |
| YouTube | AAC 320k or MP3 320k |
## Can You Hear MP3 vs FLAC?
In practice: depends on playback equipment and hearing.
- Budget earbuds or laptop speakers: no perceptible difference
- High-end Hi-Fi with audiophile headphones: some listeners detect differences
- Music production: always use WAV/FLAC to preserve quality between processing steps
Lossy compression permanently discards audio information. Always keep a WAV or FLAC master copy.
Guide