How Audio Works Q&A How Audio Works Q&A Chapter 1. Physical Sound What are sound waves? How do we represent sound waves? What is a wavelength? What are frequencies? What is the decibel scale? What does switching polarity mean? What does “checking the phase” mean? What is a harmonic? What is an octave? Chapter 2. From Analog Sound to Digital Audio What does analog mean? Why do we need transducers? What is a signal chain? Why do I need a signal chain? What is audio engineering’s job? What is a microphone? How does a microphone work? What is phantom power? How do we categorize condenser microphones? What is a pickup pattern? What do the different patterns do? Why do I need different patterns? I want to buy a microphone, help me! Why do I care about microphone placement? What is impedance? HiZ, LowZ: what is that about? Why is impedance important? Why do I care about cables? Balanced and unbalanced cables: what are they? What is a microphone preamplifier? How does a preamp work? How do we categorize preamps? I want to buy a preamp, help me! What are effects: how do they help me? What does coloring sound mean? What is a gate? How do you reduce a signal’s intensity? When do I use a gate? What is a compressor? What does “dynamic range” mean? How does a compressor work? What is a transient? How does a transient shaper work? What is distortion? Are distortion, fuzz and overdrive the same? What is an equalizer? What are pass, shelf and band filters? What is a first order filter? How do I use an equalizer? What is a phaser? How does a phaser work? What is a delay? How does a delay work? What is reverb? What is RT60? What are the different types of reverbs? What parameters does a reverb use? What is outboard gear? Should I use outboard gear? Chapter 3. In The Digital Domain How do I record the sound I captured? What is an analog to digital converter? What does sampling mean? Aliasing, jitter: what are they? What is an audio interface? I want to buy an audio interface, help me! What is a digital audio workstation (DAW)? I want to buy a DAW, help me! How do I work with a DAW? What is the bit depth? What is the dynamic range? What does 0 dB FS mean? What is audio bandwidth? What does MP3 mean? What is latency? Why do I care about latency? What is MIDI? How do I use MIDI? Chapter 4. From Digital Audio to Analog Sound Why do we need a DA converter? How do speakers work? What kind of speakers or headphones do audio engineers use? I want to buy good monitors, help me! Why do I care about sound reflection? Why do people say that bass frequencies build up in corners? What is a room mode? Which of my room modes has the lowest frequency? Why do I care about room modes? What is the Davis frequency? What is the sweet spot? How does absorption work? How do I get rid of unwanted reflections? I am short on resources; how do I get rid of reflections? How does human hearing work? How does sound information get to the brain? How does our brain process the information? What is the Fletcher-Munson effect?