FLAC Audio (.FLAC)
FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format that typically reduces file sizes by 40-60% compared to uncompressed WAV. It preserves the complete original audio data bit-for-bit, allowing perfect reconstruction of the source. FLAC supports high-resolution audio up to 32-bit depth and 655,350 Hz sample rate with embedded metadata and album art.
Advantages of FLAC Audio
What the FLAC format does well, and why you might choose it.
- Completely lossless compression preserving bit-perfect audio quality
- Open-source and royalty-free with broad software and hardware support
- Typically 40-60% smaller than equivalent WAV files
Limitations of FLAC Audio
What the FLACformat doesn't do well, and when to choose another format.
- Still significantly larger than lossy formats like MP3 or AAC
- Not supported by all portable devices and car audio systems
- Encoding and decoding requires more CPU resources than uncompressed formats
What FLAC files are used for
- Audiophile music collections and high-fidelity playback
- Lossless music archival and library preservation
- Source format for transcoding to lossy formats for distribution
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Frequently asked questions about FLAC
What is a .FLAC file?
FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format that typically reduces file sizes by 40-60% compared to uncompressed WAV. It preserves the complete original audio data bit-for-bit, allowing perfect reconstruction of the source. FLAC supports high-resolution audio up to 32-bit depth and 655,350 Hz sample rate with embedded metadata and album art.
What is the MIME type of FLAC?
The official MIME type for FLAC files is audio/flac. This is the value web servers and applications use to identify the format when transferring files.
What category does FLAC belong to?
FLAC is a Audio Converter format. Files in this category share common conversion paths and use cases.
How do I open a .FLAC file?
FLAC files are typically opened by software that natively supports the FLAC Audioformat. If you don't have a compatible application, the most reliable approach is to convert the file to a more universal format using the converters listed above. Most FLAC Audio files convert to widely-supported alternatives in seconds.
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