Which file extension is used for audio files?

Which file extension is used for audio files?

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

Answer: (C)

File extensions indicate how the data inside is formatted and how software should handle the file. WAV is a widely recognized audio file extension because it typically contains uncompressed PCM audio in a simple container, making it a standard for high-quality playback and easy editing. That broad compatibility and straightforward structure is why WAV is the go-to example for a basic audio file extension. The other options—MP3, AAC, and FLAC—are also audio formats, but they represent compressed forms (MP3 and AAC are lossy, FLAC is lossless but less universally used for basic interchange).

File extensions indicate how the data inside is formatted and how software should handle the file. WAV is a widely recognized audio file extension because it typically contains uncompressed PCM audio in a simple container, making it a standard for high-quality playback and easy editing. That broad compatibility and straightforward structure is why WAV is the go-to example for a basic audio file extension. The other options—MP3, AAC, and FLAC—are also audio formats, but they represent compressed forms (MP3 and AAC are lossy, FLAC is lossless but less universally used for basic interchange).