Choose the format your player or DJ software accepts, then check a sample file on the equipment you actually use. A higher output bitrate cannot restore detail missing from the source.
Start with the source
MP3 and AAC audio use lossy compression. Re-encoding a compressed source adds another conversion; it does not turn that source into an original studio recording. If you have an original file from the artist or a store, keep it as your reference.
MP3 up to 320 kbps or M4A. Audio quality depends on the source. A 320 kbps output setting describes the resulting MP3, not proof of the source’s quality. Listen for distortion, missing sections and unwanted silence before adding a file to a session.
What to choose in Cratebox
| Choice | When it helps | What to check |
|---|---|---|
| MP3 | Your intended player accepts MP3 and you want to choose an MP3 quality setting. | Use a sample file to check playback and tags on your own equipment. |
| M4A | Your intended player supports this audio container and the audio format inside it. | M4A is a container extension. Check the actual file, not only its extension. |
Cratebox does not certify compatibility with a particular DJ application, controller or deck. Follow that product’s format requirements and test the actual file before relying on it.
Make a small test before a large queue
- Choose a source you own or are allowed to download.
- Open Settings, choose your download folder and select an audio format.
- Download one track and open the resulting file from its folder.
- Check playback, duration, title and artist. Review source-derived metadata before importing it into your library.
- Use the same settings for the rest of that batch when the result fits your needs.
Next, follow the local audio preparation workflow, or try Cratebox on your Mac.
Further reading
Audacity’s explanation of audio quality covers lossy and lossless formats. Apple’s Music import settings explain the app’s encoding options. These describe audio formats, not an integration between those products and Cratebox.