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Commit Graph

6445 Commits

Author SHA1 Message Date
Thomas Harte
75315406bb Ensure all channels begin in 'release' phase, which is currently code for 'off' in conjunction with attenuation of 511. 2020-05-06 00:13:01 -04:00
Thomas Harte
ea42fe638a Corrects channel attenuation and carrier sustain level settings. 2020-05-05 23:41:15 -04:00
Thomas Harte
744211cec0 Ensures rhythm instruments are installed. 2020-05-05 23:13:13 -04:00
Thomas Harte
1a4321d7d0 Attempts better to balance attenuations. 2020-05-05 22:14:11 -04:00
Thomas Harte
b943441901 Marks up more specific TODOs.
I think I'm already much happier with this factoring.
2020-05-05 00:35:03 -04:00
Thomas Harte
0505b82384 Restores top bit of channel period, propagates it to the envelope generator. 2020-05-05 00:28:24 -04:00
Thomas Harte
c9fb5721cd Makes first attempt to reintroduce full-melodic output. 2020-05-05 00:16:45 -04:00
Thomas Harte
386a7ca442 Continues doing away with the attempt heavily to interleave the OPLL and OPL2, creating a new OPLL class. 2020-05-04 21:14:51 -04:00
Thomas Harte
e929d5d819 Ensures proper dereferencing of the std::optional. 2020-05-03 21:57:15 -04:00
Thomas Harte
94614ae4c3 Shifts the LFO implementation inline. 2020-05-03 21:44:22 -04:00
Thomas Harte
1223c99e0f Adds waveform generation logic to the new factoring. 2020-05-03 21:38:20 -04:00
Thomas Harte
1ff5ea0a6e Adds KeyLevelScaler, implements EnvelopeGenerator, adds reset to PhaseGenerator. 2020-05-03 16:24:55 -04:00
Thomas Harte
9d2691d1d2 Taking it as given that outstanding deficiencies are mostly due to poor design, starts breaking out the envelope and phase generators. 2020-05-01 23:46:42 -04:00
Thomas Harte
e4ef2c68bb Feeds through drum volume levels. 2020-04-30 19:35:09 -04:00
Thomas Harte
7fffafdfd4 Wires the high-hat through, possibly incorrectly. 2020-04-29 22:44:15 -04:00
Thomas Harte
5896288edd Adapts to new interface. 2020-04-29 22:08:36 -04:00
Thomas Harte
c4135fad2b Attempts completely to decouple updates and audio outputs. 2020-04-29 22:07:40 -04:00
Thomas Harte
1f34214fb3 Imagines a future of being able to boot into the BIOS. 2020-04-29 22:07:20 -04:00
Thomas Harte
f899af0eef Fixes OPL tests. 2020-04-28 20:17:16 -04:00
Thomas Harte
9f0c8bcae7 Attempts to add the missing noise generators. I think I may still be astray on volumes. 2020-04-26 15:51:33 -04:00
Thomas Harte
2bc36a6cde Eliminates branch within snare output. 2020-04-26 00:21:15 -04:00
Thomas Harte
ee10fe3d2c Fully separates updates and outputs in operators; takes a shot at the snare. 2020-04-26 00:18:09 -04:00
Thomas Harte
a424e867f9 Continues factoring this apart, albeit with a decision on whether to retain update-and-output still pending. 2020-04-25 23:07:40 -04:00
Thomas Harte
f52b40396a Re-ups output level.
Though it's still quiet compared to the SN.
2020-04-25 23:07:06 -04:00
Thomas Harte
cd2ab70a58 Moves the LFSR to the LowFrequencyOscillator.
Possibly I should come up with a better name for that?
2020-04-25 22:21:42 -04:00
Thomas Harte
a5d1941d28 Adds necessary standalone #imports; makes safe for signed types. 2020-04-25 22:21:10 -04:00
Thomas Harte
65a3783dd2 Attempts the tom tom. 2020-04-25 19:21:55 -04:00
Thomas Harte
b9b5c2a3bc Takes a first run at proper slot mixing and the bass drum. 2020-04-25 18:01:05 -04:00
Thomas Harte
12c618642e Corrects output range. 2020-04-25 00:07:58 -04:00
Thomas Harte
6ebc93c995 Switches to maximum-rate multiplexing. Hopefully to eliminate the mixer as a consideration for now. 2020-04-24 23:50:06 -04:00
Thomas Harte
6d4e29c851 Strips mixer back to basics in search of audio issues. 2020-04-24 23:32:02 -04:00
Thomas Harte
b3979e2fda Looking towards rhythm mode, and in search of bugs: factors out ADSR.
Further factorings to come.
2020-04-24 18:48:32 -04:00
Thomas Harte
983c32bf75 Adds vibrato.
This would complete melodic output, subject to bug fixes.
2020-04-24 18:02:41 -04:00
Thomas Harte
9e3614066a Adds tremolo support, switches to global timer for ADSR stages other than attack. 2020-04-23 23:55:49 -04:00
Thomas Harte
c7ad6b1b50 Minor layout and commenting improvements. 2020-04-21 23:35:48 -04:00
Thomas Harte
676dcf7fbb Calculates the proper key scale rate, though ADSR itself is still lacking that precision. 2020-04-21 22:57:56 -04:00
Thomas Harte
50d725330c Adds missing header. 2020-04-21 22:48:52 -04:00
Thomas Harte
2886dd1dae Collapses key-level scaling to a single 2d table.
I dare imagine I can do better; the columns in particular look like arithmetic progressions.
2020-04-21 20:19:02 -04:00
Thomas Harte
40424ac38b Re-enables key-level scaling, with 3db and 1.5db the correct way around. 2020-04-21 20:10:40 -04:00
Thomas Harte
a4d3865394 Decreases sustain level attenuation; disables key-level scaling for now.
The latter was definitely wrong, I also think I don't need the big four tables.
2020-04-21 19:58:40 -04:00
Thomas Harte
0ac99e8d42 Disables low low-pass filter, honours audio control bits for better volume usage. 2020-04-21 19:57:13 -04:00
Thomas Harte
bdce1c464a Takes a shot at key-level scaling. Testing to come. 2020-04-21 00:09:42 -04:00
Thomas Harte
475d75c16a Preserves fractional part of modulator phase. 2020-04-20 23:35:37 -04:00
Thomas Harte
32fd1897d0 Via a unit test, confirms and fixes relative volumes of OPLL channels.
Also rejigs responsibility for scaling to emulator-standard volume.
2020-04-20 23:17:29 -04:00
Thomas Harte
39e6a28730 Rearranges file. 2020-04-20 19:41:04 -04:00
Thomas Harte
3852e119aa Adds test data for FM wave generation. 2020-04-20 19:33:03 -04:00
Thomas Harte
f19fd7c166 Pulls out common melodic update calls. 2020-04-20 18:58:31 -04:00
Thomas Harte
100fddcee1 Corrects divider, takes another whack at ADSR. 2020-04-20 18:58:10 -04:00
Thomas Harte
99fa86a67e Adds a test for lookup sine. And fixes lookup sine. 2020-04-20 18:40:47 -04:00
Thomas Harte
6568c29c54 Improves commentary. 2020-04-19 22:42:25 -04:00