Real-World Example: Why Music Files Are Big
Part of Images & Sound — GCSE Computer Science
This deep dive covers Real-World Example: Why Music Files Are Big within Images & Sound for GCSE Computer Science. Revise Images & Sound in Memory & Storage for GCSE Computer Science with 18 exam-style questions and 16 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 9 of 11 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 9 of 11
Practice
18 questions
Recall
16 flashcards
Real-World Example: Why Music Files Are Big
Scenario: You want to store a 3-minute song in uncompressed CD quality.
- Settings: 44,100 Hz, 16-bit, stereo
- Duration: 3 minutes = 180 seconds
- Calculation: 44,100 × 16 × 180 × 2 ÷ 8 = 31,752,000 bytes ≈ 31.7 MB
- For full album (60 min): 31.7 × 20 = 634 MB!
This is why compression is essential! MP3 compression reduces this to ~3 MB per song (90% smaller) with minimal quality loss.