Drawbar and Detuned organ still one octave too low

[mkj42]

I posted about this issue back in this post from 2021: https://musescore.org/en/node/326427 and commented in this 2017 thread as well: https://musescore.org/en/node/163756#comment-1104115

Harmonic analysis was performed. Proof was given, complete with screen grabs and how to reproduce.

This is still the case with the newest version of the soundfont included with 4.3. It should be an easy fix. Replace -24 with -12 in the transposition for the Drawbar Organ instrument in the soundfont (note: instrument, not preset or sample). Then re-save. I could do this easily if granted access to MS Basic.sf2 so there would be no quality loss.

Though one could, one shouldn't simply change instruments.xml, because then MuseScore would be wrong for correctly pitched soundfonts.

I should note: Workarounds are available. You can either edit the soundfont yourself (and lose sf3 sizing) or transpose within MuseScore, but the optimist in me wants it to be correct out-of-the-box.

Thanks

[Jojo-Schmitz]

If it had been adressed in Mu4, you'd know or could check. Please do...

If it is an issue with the soundfonts, and I believe it is, then I won't be able to fix this, and it isn't really a MuseScore problem in the first place

[mkj42]

I just checked. In 4, Drawbar and Detuned 1 and 2 are still one octave too low.

To your second point, though it is technically a problem with the soundfont itself, couldn't it be fixed by simply altering the default transposition or in the insruments.xml? I imagine other similar issues, like all the transposing instruments, have fixes embedded in the same way. The soundfont itself plays back transposing brass at concert pitch, and musescore does the work to make it print and work correctly. It seems the organs would require the same thing, or am I wrong somehow? If you just don't want to do it out of principle for keeping the software the same across versions, fine. Thanks

[Jojo-Schmitz]

It might be worked around by tweaking instruments.xml, but if so, just changing the octave transpositionings in the (presumably pretty few) affected scores (containing Drawbar, Detuned 1 or 2) would too, wouldn't it?

Whatever: if/as the issue exists in Mu4 too, please report it there, at https://github.com/musescore/MuseScore/issues/new/choose

[mkj42]

Agreed, workarounds work (see last sentence in first post). It's just the principle of the thing is all.

Will report; thanks for the link.

[Jojo-Schmitz]

Yes, for now I'd rather keep this the same across versions. If and when it gets fixed in Mu4, I'll have another look.

[knoike]

I have not confirmed this with my own ears yet, but I am interested in this issue. Which of the following is the cause?

1/ FluidSynth (MuseScore3 internal synthesizer for sf2 and sf3)

2/ MuseScore3

3/ Drawbar and Detuned organ pitch in MuseScore_General.sf3

4/ Drawbar and Detuned organ pitch in all of GM SoundFonts

5/ Other

[Jojo-Schmitz]

See https://musescore.org/en/node/326427#comment-1104362

[knoike]

I'm sorry, I don't really trust Marc Sabatella's hearing, because it doesn't match the spectral analysis. https://musescore.org/en/node/326427#comment-1104481

However, from the comments https://musescore.org/en/node/326427#comment-1104362 and https://musescore.org/en/node/326427#comment-1104369 , I found that the following was most likely the cause:

3/ Drawbar and Detuned organ pitch in MuseScore_General.sf3

Is it a fundamental solution to make a pitch-corrected MuseScore_General.sf3 under a different filename?

[mkj42]

I have not confirmed this with my own ears yet, but I am interested in this issue. Which of the following is the cause?

1/ FluidSynth (MuseScore3 internal synthesizer for sf2 and sf3)

2/ MuseScore3

3/ Drawbar and Detuned organ pitch in MuseScore_General.sf3

4/ Drawbar and Detuned organ pitch in all of GM SoundFonts

5/ Other

3+ Drawbar and Detuned organ pitch in just MuseScore General and MS Basic soundfonts and I presume all derivatives. Many others I have sampled have been pitched correctly.

[mkj42]

Is it a fundamental solution to make a pitch-corrected MuseScore_General.sf3 under a different filename?

That is one option, but the individual would lose the sf3 size reduction. Another solution would be to correct within the instruments.xml file.

[Jojo-Schmitz]

Which would make it fail with many other soundfonts

[mkj42]

Which would make it fail with many other soundfonts

True. Bummer.

[knoike]

I see, thanks! I understood it's a problem that occurs with a specific SoundFonts.

Polyphone SoundFont editor is able to read/write sf3 format file directly, so it may be useful to modify sf3. I think the file size will be almost the same.

https://www.polyphone.io/

[mkj42]

Polyphone SoundFont editor is able to read/write sf3 format file directly, so it may be useful to modify sf3. I think the file size will be almost the same.

https://www.polyphone.io/

Yes, it absolutely would work and polyphone is what I would suggest. I don't remember what the size difference would be exactly.

[mkj42]

sf3 directly? I missed that or I may need to check the newest version.

[Jojo-Schmitz]

monitoring #23659

[mkj42]

Polyphone SoundFont editor is able to read/write sf3 format file directly, so it may be useful to modify sf3. I think the file size will be almost the same.

https://www.polyphone.io/

I just refreshed my memory. You don't want to edit and re-save sf3 as it's a lossy format to start with. Polyphone can certainly open sf3, but it only saves as sf2; hence the file will be bigger and possibly one generation lossier. Proceed at your own risk.

[mkj42]

It seems a pity, because all it would take is changing the transposition of the Drawbar Organ instrument (note: instrument, not sample or preset) in the soundfont from -24 to -12. The only trick is using original sources then saving it in sf3 to avoid quality loss.

Unrelated note: I just noticed Drawbar Organ goes through progressively heavier filtering as the dynamics get quieter. This is not how an organ behaves, folks.

[knoike]

I don't know if Polyphone re-compresses when re-saving, but you can save in sf3 format.

[Menu(Top-Right corner)] -> [Export soundfont] -> [Format] .sf3 ([Quality] High) press [Export] button.

Proceed at your own risk.

Yes! Thanks!

[knoike]

The only trick is using original sources then saving it in sf3 to avoid quality loss.

I agree. If you find original sources, please write it here.

[mkj42]

I don't know if Polyphone re-compresses when re-saving, but you can save in sf3 format.

[Menu(Top-Right corner)] -> [Export soundfont] -> [Format] .sf3 ([Quality] High) press [Export] button.

Excellent, thank you. I just noticed it was unavailable under 'save as'. It pays to look around.

[mkj42]

The only trick is using original sources then saving it in sf3 to avoid quality loss.

I agree. If you find original sources, please write it here.

Reading the old and new MuseScore_General_License.md and MS Basic_License.md, it seems all the info is there. Further research needed.

[Jojo-Schmitz]

I have the sf2 versions of MuseScore General and MuseScore General HQ, version 0.2.1, 210 MB and 478MB

[mkj42]

Excellent The only thing required then is piecing together what all has changed. As I said, the transposition change would take three seconds. ...and then of course, will it get bundled if fixed?

[Jojo-Schmitz]

Not sure how to handle that

[mkj42]

I am obviously being super-anal trying to keep all the sf2 sources.

[mkj42]

I have General 0.2 and HQ 0.1.8

[mkj42]

Note: I updated 'additional context' section.

[mkj42]

Good news / no news / bad news

As I already have the correct General for 3.6.2 and Evo (0.2 2018), I could easily tweak the one needed parameter. I would still need to find MS Basic.sf2 to proceed with that one. Polyphone will not convert to an sf3 this large (limit 127 presets). I have since gotten sf3convert to work on Linux Mint 21.

[Jojo-Schmitz]

As far as I can tell MS Basic is the same as MuseScore General HQ v0.2, or, as the Readme.md puts it: a scaled down version. So just take MuseScore General HQ there too MS Basic.sf3 has some 50MB, MuseScore General HQ v0.2.1.ssf3 some 83MB, MuseScore General v0.2.1.ssf3 some 39MB

[mkj42]

Sorry, you lost me there. You mentioned three different sizes. My goal would (should?) be starting with MS Basic.sf2, so that a corrected sf3 would be exactly the same size. For 3.6.2 and Evo, I already have the sf2.

[mkj42]

Things seem to be going backwards here if I understand things (doubtful). MS Basic 2194 samples MS General HQ 1246 samples What? I thought it should be the opposite.

[Jojo-Schmitz]

I don't know where to find MS Basic sf2. But I see no point in not using the HQ font there? OTOH that's be an issue to discuss at #23659

[mkj42]

I thought I had solved it with Cognitone's sf2convert. Though it completes. the resulting sf3 will not load in Polyphone and only makes noise in MuseScore.

[knoike]

I could install sf3convert. In the case of Debian12, it was possible to install it with 'sudo apt install sf3convert'.

I tried using it to do the conversion and it seems to work fine.

If you send me the sf2 file, I will convert it to an sf3 file and send to you. It seems that sf3convert can specify 'ogg quality' and 'amplification in dB before ogg compression', so please specify them if necessary. The default values seem to be 0.3 and -1.0 respectively. https://github.com/musescore/sftools/blob/master/sfconvert.cpp#L63-L64

[mkj42]

Thanks for the offer. The sf2 is 205MB by the way. You could download it from https://ftp.osuosl.org/pub/musescore/soundfont/MuseScore_General/MuseScore_General.sf2 and change Drawbar Organ Instrument transpose from -24 to -12 and be in the same place as me without needing to host the file somewhere. I do mean the same place; I haven't even added anything to the text or changed the version number. I don't know if this small a change warrants it. Although... Your mentioning of quality made me realize that though the sf3 would not play, I had generated it with maximum (identical?) quality. I want to give it another go, I have no idea what settings might be used for amplification. It might take a couple passes and comparison to see how it's going unless someone from the soundfont generating camp chimes in. So, again, thanks, but give me a bit if you don't mind.

[mkj42]

Semi-success! Cognitone's sf2convert still failed even with reduced quality settings, but... I have sf3convert running in Linux Mint 21 and at least the Drawbar Organ sounds correct in MuseScore. FYI my first pass resulted in a 24 meg file, so some tweaking with the parameters is probably necessary.

[knoike]

You could download it from https://ftp.osuosl.org/pub/musescore/soundfont/MuseScore_General/MuseScore_General.sf2

Thanks! I downloaded it. However, it seems version 0.2. So, I searched for 0.2.1 sf2 and found it. https://musescore.org/en/node/314547#comment-1097881 ↓ https://drive.google.com/file/d/1Y39F2YJIsZumGPry1ELJcbcmW2R-qZqG/view

It was described 'v0.2.1' in the sf2 file, and MuseScore_General_Changelog.md contains information about v0.2.1.

The number of 'Samples', 'Instruments' and 'Presets' has also changed slightly.

v0.2.1: 1254 Samples 205 Instruments 311 Presets

v0.2: 1246 Samples 204 Instruments 309 Presets

[mkj42]

That's great! thanks! though I assume 3.6.2 and Evo use 0.2(?) I'm frankly a little tired and burned out to pursue; will resume later; I was happy with the success. FYI I feel I got good results with 0 amplitude and 0.8 quality - sf3 size 39 meg.

[knoike]

I was attempting something similar. I was just tweaking the -q argment only.

215827444 MuseScore_General_0_2_1.sf2 39977493 MuseScore_General_0_2_1.sf3 39616406 MuseScore_General_0_2_1sf2tosf3_q079.sf3 39939770 MuseScore_General_0_2_1__sf2tosf3_q0798.sf3 39980006 MuseScore_General_0_2_1sf2tosf3_q0799.sf3

Left column is file size. It does not match the target sf3 size exactly, but it's near value by '-q 0.798' and '-q 0.799' I thought it would be easier to find out, but it seems it's not that simple.

[mkj42]

Checking 3.7 Evo it is in fact v0.2.sf3 included, 1246 204 309 38966KB so that is the sf2 version I started from for 3.7 and 3.6.2. Any matching sizes you get from 0_2_1 will be pure chance.

[mkj42]

@Jojo-Schmitz

Success, or as close as I think I can get. Maybe there are other variables I'm not considering.

I now have an sf3 with correct Drawbar Organ instrument transposition based on MuseScore_General as included in 3.7 Evo.

Generated via sf2 with sf3convert, a 0, q 0.795 v0.2: 1246 Samples 204 Instruments 309 Presets 38970KB

Include or not, but the file is ready. If you would prefer a different starting sf2, I am open to that as well.

[knoike]

Any matching sizes you get from 0_2_1 will be pure chance.

https://drive.google.com/file/d/1Y39F2YJIsZumGPry1ELJcbcmW2R-qZqG/view

MuseScore_General_0.2.1.7z which can be downloaded from above URL, contains not only sf2 but also sf3. So I looked for a conversion parameter that would match the exact size.

[knoike]

Success, or as close as I think I can get. Maybe there are other variables I'm not considering. sf3 of 38970KB achieved at a 0 q 0.795 in sf3convert

https://ftp.osuosl.org/pub/musescore/soundfont/MuseScore_General/MuseScore_General.sf2

I also tried converting from v2.0 sf2.

39900972 MuseScore_General.sf3 (Included with MuseScore 3.6.2) 39757254 MuseScore_General_sf2tosf3_q0795.sf3 39877298 MuseScore_General_sf2tosf3_q0798.sf3 39897830 MuseScore_General_sf2tosf3_q07985.sf3 39899797 MuseScore_General_sf2tosf3_q079855.sf3 39901728 MuseScore_General_sf2tosf3_q07986.sf3

The value is very close, but it wasn't an exact match. It seems I also need to specify the '-a nn' argument you suggested.

I'm tired too :-)

[mkj42]

5 decimal places (?!) I think we're both getting carried away. I am done for now, until actual hands-on soundfont folks care to comment.

[mkj42]

@Jojo-Schmitz @mrbumpy409

Jojo, if you could please clarify something: Should 3.7 Evo match 3.6.2, or continue to evolve? I am sincerely hoping it's evolve, as you have already included 4 features and opening 4 files. Heck, it's in the name :)

Now that Chris is involved, I am willing to step aside or be as much help as needed going forward, including possibly implementing fixes based on 0.2.1 and 0.2.1HQ or further.

[Jojo-Schmitz]

It should evolve 😉

[mrbumpy409]

I will be in communication with MuseScore about how to proceed with development of "MS Basic". I'm thinking perhaps a separate GitHub page for the SoundFont, documentation, and issue tracking—with Google Drive links or "releases" for the source SoundFont downloads—might not be a bad idea.

[mrbumpy409]

@knoike: When converting the sf2 to sf3, I have been using:

sfconvert -z -q 0.8 -a -1 MuseScore_General.sf2 MuseScore_General.sf3

[mkj42]

@mrbumpy409 Could you clarify please? I had read online that sf3convert was the preference for the MuseScore team and was what I used. Please let us know if you find sfconvert better. Also, did you try any other amplitude settings? I went with a 0 with a (somewhat crude) level comparison in MuseScore itself. It didn't seem any louder on the level meter, and I thought I maybe saw ever so mild a reduction at a -1. I haven't heard any distortion yet.