otomatalabs/furnace
8
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

Glossary refinement.

Browse source
This commit is contained in:
Electric Keet 2023-09-06 18:26:01 -07:00
parent 7b0f8520c9
commit 9bc5c4b81d
1 changed files with 13 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
doc/1-intro/glossary.md
View file

@ -23,18 +23,19 @@
- changing this may change aspects of how some chips work, most notably pitch. - changing this may change aspects of how some chips work, most notably pitch.
- some chips cannot operate at anything other than their designed clock rate. - some chips cannot operate at anything other than their designed clock rate.
**cursor**: the marker of input focus. anything typed will happen at the cursor's location. **cursor (1)**: the marker of input focus. anything typed will happen at the cursor's location.
- _Furnace:_ this always refers to the pattern view except when in a text entry box.
**cursor (2)**: the pointer controlled by a mouse or similar input. clicking when the cursor(2) is in a valid area will place the cursor(1) there.
**DAC**: digital analog converter. this converts a digital representation of sound into actual output. **DAC**: digital analog converter. this converts a digital representation of sound into actual output.
**.dmf**: a DefleMask song file. **.dmf**: DefleMask Module File.
- _Furnace:_ DFM 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 read, and compatibility flags will be set to make them play as accurately as possible, but there may still be glitches.
- _Furnace:_ DFM files may be saved, but full compatibility isn't guaranteed and many features will be missing. this isn't recommended unless absolutely necessary. - _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**: a DefleMask instrument file. **.dmp**: DefleMask Preset. a file storing instrument data.
**.dmw**: a DefleMask wavetable file. **.dmw**: DefleMask Wavetable. a file storing wavetable data.
**DPCM**: differential/delta pulse code modulation. this is a variety of PCM that stores each amplitude as its difference from the previous. **DPCM**: differential/delta pulse code modulation. this is a variety of PCM that stores each amplitude as its difference from the previous.
@ -90,10 +91,10 @@
**phase reset**: to restart a waveform at its initial value. **phase reset**: to restart a waveform at its initial value.
- for FM instruments, this restarts the volume envelope also. - for FM instruments, this restarts the volume envelope also.
**PSG**: programmable sound generator. this refers to chips that produce only simple waveforms and noise. **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. **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 of the 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%. - a square wave is a pulse wave for which the ratio of high and low are exactly equal, having a duty of 50%.
**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. **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.
@ -124,13 +125,13 @@
**supersaw**: a sound made up of multiple saw waves at slightly different frequencies to achieve a chorusing effect. **supersaw**: a sound made up of multiple saw waves at slightly different frequencies to achieve a chorusing effect.
**tick rate**: the rate at which the software controlling a sound chip sends commands to it. **tick rate**: the number of times per second that the sound engine moves forward. all notes and effects are quantized to this rate.
- this usually corresponds to the frame rate the system uses for video, approximately 60 for NTSC and 50 for PAL. - this usually corresponds to the frame rate the system uses for video, approximately 60 for NTSC and 50 for PAL.
**unsigned**: a digital representation of a number that can only be positive. **unsigned**: a digital representation of a number that can only be positive.
- if an imported raw sample sounds recognizable but heavily distorted, it's likely to be signed interpreted as unsigned or vice-versa. - if an imported raw sample sounds recognizable but heavily distorted, it's likely to be signed interpreted as unsigned or vice-versa.
**.vgm**: a file containing the log of data sent to a soundchip during sound playback. **.vgm**: Video Game Music. a file containing the log of data sent to a sound chip during sound playback.
- saving to a .vgm file may be compared to "converting text to outlines" or similar irreversible processes. the results cannot be loaded back into the tracker. - saving to a .vgm file may be compared to "converting text to outlines" or similar irreversible processes. the results cannot be loaded back into the tracker.
- different versions of the VGM format have different capabilities, with trade-offs. older versions may lack chips or features; newer versions may not be compatible with some software. - different versions of the VGM format have different capabilities, with trade-offs. older versions may lack chips or features; newer versions may not be compatible with some software.
- samples are stored uncompressed. PCM streams (such as DualPCM) can quickly take up a huge amount of space. - samples are stored uncompressed. PCM streams (such as DualPCM) can quickly take up a huge amount of space.
@ -142,4 +143,4 @@
**wavetable** (2): an ordered group of wavetables(1) used in sequence within a single instrument. **wavetable** (2): an ordered group of wavetables(1) used in sequence within a single instrument.
**.zsm**: a VGM-like file meant specifically for the Commander X16 computer. **.zsm**: ZSound Music. a VGM-like file meant specifically for the Commander X16 computer.