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A few more corrections and adjustments.

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Pulse width really does deserve its own entry.
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Electric Keet 2023-09-06 19:00:57 -07:00
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doc/1-intro/glossary.md
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@ -33,14 +33,13 @@
- _Furnace:_ .dmf files may be read, and compatibility flags will be set to make them play as accurately as possible, but there may still be glitches.
- _Furnace:_ .dmf files may be saved, but full compatibility isn't guaranteed and many features will be missing. this isn't recommended unless absolutely necessary.
**.dmp**: DefleMask Preset. a file storing instrument data.
**.dmp**: DefleMask Preset. an instrument file.
**.dmw**: DefleMask Wavetable. a file storing wavetable data.
**.dmw**: DefleMask Wavetable. a wavetable file.
**DPCM**: differential/delta pulse code modulation. this is a variety of PCM that stores each amplitude as its difference from the previous.
**duty**: in a pulse wave, this represents the ratio of the "on" part of the wave.
- a square wave is a pulse wave with a duty of 50%.
**duty cycle**: usually called _pulse width._ in a pulse wave, this is the ratio of the high part to the high and low combined.
**feedback**: in FM instruments, this adds some of an operator's output into itself to create complex harmonics.
- in the algorithm view, an operator with a circle around it is capable of feedback.
@ -50,13 +49,13 @@
**.fui**: a Furnace instrument file.
**.fur**: a Furnace tracker file.
**.fur**: a Furnace module file.
**.fuw**: a Furnace wavetable file.
**hard-pan**: sounds can only be panned all the way to one side or the other, not in-between.
**Hz**: hertz (pronounced as "hurts"). a unit representing divisions of one second. 1 Hz means once per second; 100 Hz means one hundred times per second. also, _kHz_ (kilohertz, one thousand per second) and _MHz_ (megahertz, one million per second).
**Hz**: hertz. a unit representing divisions of one second. 1 Hz means once per second; 100 Hz means one hundred times per second. also, _kHz_ (kilohertz, one thousand per second) and _MHz_ (megahertz, one million per second).
**interpolate** (pattern): to fill in the area between two values with a smooth ramp of values in between.
@ -94,8 +93,8 @@
**PSG**: programmable sound generator. any sound chip is a PSG, though the term is often used to specifically refer to chips that produce only simple waveforms and noise.
**pulse wave**: a waveform with a period consisting of only two amplitudes, high and low. also known as a rectangular wave.
- the ratio of the durations of the high and low parts is known as the _duty_ or _pulse width_ of the wave.
- a square wave is a pulse wave for which the ratio of high and low are exactly equal, having a duty of 50%.
**pulse width**: sometimes called _duty cycle._ in a pulse wave, this is the ratio of the high part to the high and low combined.
**release**: the part of a note that plays after it's no longer held, or the part of a macro the plays after it stops looping. usually applies at key off.