Which extension denotes an uncompressed audio file format?

Which extension denotes an uncompressed audio file format?

• A. .mp3
• B. .wav
• C. .aac
• D. .flac

Answer: (B)

Uncompressed audio means the sound data is stored as raw samples with no loss from compression. The typical way to do this is PCM data inside a WAV container, where the file stores every sample along with a header describing sample rate, bit depth, and channels. This makes WAV files large but faithful to the original recording. MP3 and AAC use lossy compression, discarding some data to shrink the file, while FLAC uses lossless compression (reducing size without losing data). So the extension associated with uncompressed audio in common usage is WAV.

Uncompressed audio means the sound data is stored as raw samples with no loss from compression. The typical way to do this is PCM data inside a WAV container, where the file stores every sample along with a header describing sample rate, bit depth, and channels. This makes WAV files large but faithful to the original recording. MP3 and AAC use lossy compression, discarding some data to shrink the file, while FLAC uses lossless compression (reducing size without losing data). So the extension associated with uncompressed audio in common usage is WAV.