🔍 Key Concepts
• CODEC as a combination of two words related to signals
• Difference between analog voice signals and digital format
• Role of encryption vs simple compression
💭 Think About
• Think about what each letter in the word CODEC might stand for and which option best matches that meaning.
• Which option describes a function that both changes the form of the signal and prepares it for digital transmission?
• Which answers are too narrow or only describe part of what a modern CODEC actually does (for example, only compression or only reading Morse)?
✅ Before You Answer
• Identify which option clearly includes both coding and decoding in its description, not just one direction.
• Check which option specifically mentions converting a voice signal into a digital format.
• Verify which choice best fits equipment used in digital communications and encryption, not just basic audio processing.