klesun-productions/klesun-productions.github.io

MIDI song editor in a web page + soundfont player... and 100500 other misc web apps on my server

klesun-productions.github.io's Issues

Export midi files in `entry/compose.html`

Got song, wanna upload it to ichigos, but i have it only in .mid.js format

Add a "Filter" section above song list

First of all i'd like to be able to filter:

• Tohou songs
• My songs
• Ichigos songs
• By score

// following when got denormalized info from midi in db

• By tempo (initial idea is to separate peacefull music from hardcore)
• By duration
• By whether there are other instruments than piano in it

Do some integration with git

I don't wanna lose a single note from every state of a song and i don't wanna do git commit after each save and i'd like to be able to easily navigate through them

Fade samples in 50 or so milliseconds instead of interrupting instantl

Cuz it causes artifacts. For example you can try some song with really soft instruments..

random_good_stuff/time_out_4_vspyshka/menu.mid

Use envelope release, frequency filter and stuff from soundfont info

It will probably improve sounding.
The thing is, we actually need to stop playing with fade, but what time to use for fade i dunno. And soundfont does.

What else i should get from midi file

Tact size
Channel Volume
Note Volume
Maybe More...

MIDI.js repository is a phony!

The real MIDI.js is http://www.midijs.net - they don't force me to import 20 scripts to play a midi file

I suspect that the git MIDI.js is just a wrapper (a buggy monstrously leaking wrapper) for the simple one. Stop using MIDI.js of the git

I suppose you can store Shmidusic Songs as MIDI without a loss

Such misc. info as loopStart, loopTimes could be placed as json to a MIDI text event like:
"klesunConfig: {"loopStart": 0.75, "loopTimes": 2}"

midi device volume slider

probably make the slider common for all synths, like speed multiplier

Creating new Oscillator on each note produces sound artifacts

Try for example "Clannad - Dango Daikazoku (1).mid" with sine wave and high volume
Probably should use 16 instances or so; set volume 0 when sounding finishes and put the oscillator into a freeAsInFreeSpeechOscillatorList

Analyze every song and fetch sequence info

This primarily is for 10+ minute songs, like: [Europe, Clannad Etude, Robot Taisen, etc...]
The info probably should be stored in some table and somehow graphically shown during playback.

For a start just exact comparison will be good. If needed, can do with some approximation in case some songs (like Banjo Kazoie) will have some small noise.

Please, think of splitting site to Production and Development versions

I suppose it's already likely something, a man could use to get pleasure from, but every my innovation deals serious damage to workability of old features.

looks like on firefox oscillator has some serious performance issues

try Europe, some notes kinda have delay 'bout 20 milliseconds or so. a solution would be to delay whole playback by some OSCILLATOR_INIT_TIME.

Google login token expires in hour

I don't like the magic we use to login at the moment and i see no way how to re-ask a token with the approach. So i'd suggest instead of 3 lines in html header to use the code from /tests/google_api_test.html

Картинка стала дёрганой из-за того что мы стираем старые ноты и рисуем новые не в одном потоке

Это грустно

Может сделать что-то типа "запрос на перерисовывание" с абсолютным временем и типа ты такой тред сам себе перерисовываешь и видишь: "о, да тут один товарищ запросил перерисовку, и его время уже наступило - перерисую-ка я и его, для чего ещё нужны друзья?"

Sawtooth 81 pitch is broken in Fluid Synth

touhoumidi.altervista.org/th11_subterranean_animism/hartmannsyoukaigirl.mid

when you reload a page, midi device notes are not closed

it may sound really scary!

Sheet Music for random midi files

It does not have to be precise, just write some simple midi -> shmidusic adapter that will maintain order of notes and join notes pressed at one time into a single chord (oh and yes - tact lines should be drawn properly too)

midiCollection is restorable - no need to store it on Dropbox

• same applies for the heavy midiCollection_smf
• midiCollection_smf_bckp should be removed at all
• same applies to "a_opuses_json - Copy" probably
• the only important thing - some handwritten info, like scores, will lie in a db file in the git project root. it may go to git since it's tiny... likely

32 Bass and 76 does not have samples on GeneralUser

When switching tab playback is messed

Because Chrome has one setTimeout() per second limitation.
Probably try workers? http://stackoverflow.com/questions/5927284/how-can-i-make-setinterval-also-work-when-a-tab-is-inactive-in-chrome/5927432#12522580

Touhou - loop points and song names and game names

Some songs are really short, take touhou/th6/th06_05.mid
And some songs are really hard to find occasionally , take touhou/th11_subterranean_animism/yugi.mid, which is misspelled on top of all

Hear 0_a7_League of Legends - Warriors.mid

As you may hear, when event times are relatively short, playback becomes very messed up (the 5th second, when soloist start singing - in Van Basco it's OK, in shmidusic.lv - not =( ).

I suppose we should handle timing just like in midiana - storing start time and calculating waiting time not by "nextChordTime - curChordTime" but with "nextChordTime - NOW()"

Note velocity and stuff from midies

http://faydoc.tripod.com/formats/mid.htm

Make ability to enter notes with keyboard

Prompt to choose which layout does user have (some have "|" aftrer left shift; some have "|" next to backspace, some have "|" next to enter...)

Of course, explaining image with the whit-black colored keys in the bottom of the screen and ability to switch between "notes from keyboard"/"no notes from keyboard" modes

Implement channel volume curves

I'd suggest to make a separate view and define point positions by a fraction value. Like 3/2 - violin 20% -> 4/2 - violin 60%

The view should be updated by chord focus change and vice-versa - the chord at the position should be highlighted where you hover (or just click for a start)

Even though i wrote "curves" in the subj, for a start just straight lines between dots will be ok enough.

Probably pass channel volume from midi files

Yes, i hate it, but hack--Liminality - Unforgettable.mid

Do playback with workers

It's very sad that updating numbers in inputs or scrolling sheet music makes playback lag. Plus, i suppose, moving to workers will allow us to play even when tab is off.

when playing on midi device notes are unexpectedly closed

play with x2 speed:
opus23_angelsmerti_sloznoyeNa4alo_ubasazvesdnajaboleznj.mid.js

somewhere in the end basses have same note rhythmically repeated several times what is broken with the player. probably new note on is for some reason thrown before old note off. Probably we should store all scheduled actions and when time comes, perform not only the scheduled action, but also the actions that should have already been performed.

In time slider if you do too much events with Mudcube, it won't stop some of them - so multiple playbacks will play simulatineously

It's so sad...

Loops are broken

touhou/th16_spin_offs/06TheGreatFairyWars.mid

Scroll to the end and you'll see, it returns to the loop point, but waits couple of seconds for some reason before continuing playing...

Maybe add a general info graph under time slider?

Draw midi messages, tune % 12.
It could be the first step to move from Java to here... could draw them on 7 note staff - drawing ebony darker... or sharps brighter, flats darker, (and thinner) we probably will have signature in midi file...

Probably it would be nice if Preset List UX generation was the same code in /entry/compose and /entry/main

How about that: Presets are not changeable by default, but the control will have a method "assignPresetConsumer()" or "hangPresetChangeHandler()", after applying of which presets become changeable.
?

Investigate and apply some algorithm to equalize bass volume

For example, when wave is triangle, first two octaves are not hearable at all! See "InuYasha - I Am - Hitomi.mid"

Add Last Listened Song list and Listened Count to user info

Use the google authentication info, Luke.

Pre-load samples before it's time to play them

I suggest having some sort of "analysedSong" in the synth, which will, not in very fast tempo, runt through, loading new samples if required.

On each "consumeConfig()" it should be re-analyzed for the changed channels. Probably good idea to make a Set of notes before first iteration to not waste time on duplicates.

Lead 1 (80) is too loud

Enough!
touhou/th11_subterranean_animism/solarsectofmysticwisdom.mid

Implement UnfairRandom class

What i want: all touhou songs, except EoSD, should have priority decreased 5 times
Same would be good to apply to all songs of Monkey Island except the main theme.

And so on for all cases when we got the original midi pack that consists of 20+ mixed both good and not-so-good songs

Chunk Sheet Music note component list to allow playback of complex songs

Like each 500/1000 chord or so (maybe even less, if it won't freeze the playback). Please, do it transparently - just when setFocus Index is 501 it should magically become 501-1000 chords instead of 0-500. We probably should preload following chunk in "display: none" state.

UnfairRandom implementation should be changed

What it does now: taking a random song and throws bones dependent on the song weight. If bones fit - playing, else taking next song and doing same. I'm pretty sure probabilities are not what you think they are and moreover, if, say, we have only one song with weight 0.0001, it will take eternity to get it.

What shall be done: sum every single song weight and assign the sum to it. Then get random from 0 to largest sum and find with binary search, what stamp did it got to.

Got beyond soundfont "keyRange" border when needed

touhou/06_eosd/6b Remilia Scarlet's Theme - Septette for the Dead Princess.mid
Church Organ (19) and String Ensemble (48) do not have 97 semitone.

When switching tab it again splits to two threads

subj

Request to server can take quite a time - load next song while current is playing

subj

MUAH, no putting div sections in a table!

.content-block-table

Probably allow to provide youtube link of original song

And maybe add the audio file

Probably add ability to play in reverse order?

Sometimes sounds cool!

It is till broken when stop playback, then resuming it and change tab.

It continues brokenly play even though tab was switched.

Add quarter (and maybe 8-th) markers to the Util.StaffPanel

So it looked like:

But nicer (the lengths of events will be division of power of two)

When scrolling to played chord, please, scroll just the Sheet Music canvas (not the whole window, it's bad UX)

Also would be good to scroll only in such case, when chord is not visible.

MIDI.js has disastrous thread leak

Should investigate and write a bug report for them (maybe even a fix).

If wait for the end of the default shmidusic on my main page and repeat playback couple of times (on my acer with 1gb it's three times) you'll discover that Firefox apparently takes (50 - x where x -> 0)% of CPU and music starts sounding really bad (like if someone moved audio jack).

The issue is also obaudiously heard on the MIDI.js web site main page: http://mudcu.be/midi-js/