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| show | character
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| show | most basic sound, simplest type of wave you can have. have flute-like character. No harmonics. (flute has a sound that contains very few additional frequencies)
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| show | ...sine waves superimposed on others.
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| complex sounds have... | show 🗑
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| show | what overtones are called in pitched sounds like musical notes. multiples of the fundamental.
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| fundamental frequency can also be labeled as... | show 🗑
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| show | 2X the fundamental
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| show | 3X the fundamental
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| sawtooth wave | show 🗑
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| show | it all odd numbered harmonics are present at the same relative amplitude. Skip every other harmonic frequency (1, 3, 5, 7, 9, 11....) still sounds kinda bad
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| Why can't you make a square wave with all even harmonics? | show 🗑
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| show | ex. square waves and sawtooth waves. basis of analog subtractive synthesis (Moog, ARP, Buchla, etc.) (subtractive synthesis is filtering parts of the sound you don't want to hear)
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| show | harmonics can be called overtones, but not all overtones are harmonics
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| How do we differentiate 'voices'? | show 🗑
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| What determines the harmonics content of your voice? | show 🗑
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| show | graph that indicates from left (low) to right (high) the frequencies that you're hearing
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| Different vowel sounds have... | show 🗑
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| show | high frequency sounds that are important to keep so we can differentiate them
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| What happens if you filter out too much high frequency? | show 🗑
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| timbre | show 🗑
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| What are the two categories of sound? | show 🗑
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| pitched sounds | show 🗑
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| noise based sounds | show 🗑
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| show | which harmonics and overtones are present, and at what level relative to the fundamental
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| show | term used to describe the change that takes place to sound over time. How a sound stars, (suddenly or gradually) decays, and ends
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| show | frequency, amplitude, and timbre (all change over time)
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| show | ...representation of the envelope
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| show | attack, decay, sustain, release
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| attack | show 🗑
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| decay | show 🗑
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| show | amplitude changes very minimally
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| release | show 🗑
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| dynamic range | show 🗑
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| show | ...each part of the chain has a measurable dynamic range, and the overall system also has a measurable dynamic range
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| show | level at which a system cannot produce sound without noise overcoming the signal. all signals carry some noise. e- in devices generate some level of noise that represents flow of e- through the circuits. represents lowest amplitude a device can produce
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| generally the most expensive a device... | show 🗑
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| show | happens when a device is outputting its highest possible level of amplitude. nice and curvy sine wave has flattened peaks. becomes, essentially, square wave. makes sound seem harsh. over time can damage loud speakers
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| show | ...a lot of VERY high amplitude, high frequency harmonics
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| goal in system design is... | show 🗑
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