BTEC Music Technology Past Papers & Mark Schemes

Signal flow questions in Unit 3 require understanding of every stage in the audio path. For a typical recording session: microphone → preamp → analogue-to-digital converter (ADC) → DAW track → digital processing (EQ, compression) → digital-to-analogue converter (DAC) → monitor speakers. Know where gain staging matters (preamp gain, DAW input level, channel fader, master fader) and why excessive gain at any stage introduces noise or clipping. Microphone polar pattern questions test your ability to select the correct microphone type for a recording scenario. Cardioid patterns reject sound from behind (suitable for miking a single voice or instrument while rejecting room sound); figure-of-eight patterns reject sound from the sides (suitable for MS stereo recording or recording two sources face to face); omnidirectional patterns capture all directions (suitable for room ambience or ensemble recording where natural blend is desired). Mixing principle questions reward specific technical knowledge. EQ: high-pass filtering below 80 Hz removes rumble from vocals; presence boost around 5 kHz adds clarity and intelligibility. Compression: know the role of threshold, ratio, attack, and release. A fast attack with a high ratio controls transients aggressively; a slower attack lets the initial transient through, maintaining punch. Understand the difference between parallel compression ('New York' compression) and serial compression.