SynthFont 2.2.3.0 fails to load SFZ with relative paths

All about the development and use of SynthFont2
KaleidonKep99
Posts: 14
Joined: Tue Mar 17, 2015 7:42 pm

SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by KaleidonKep99 » Sat Jun 01, 2019 4:42 am

Hello Kenneth! It's been a while since we last talked... :lol:
Today I checked out your website after a few months, and I noticed that you released a x64 version of SynthFont2, which got me intrigued.
I tested its loading capabilities and it's so nice to see it load 40-50 million notes without crashing!

There's one problem though... Everytime I try to load my B-211 sound bank, it doesn't seem to load any sample.
Does SynthFont2 support relative paths for the samples?

Any SFZ-complaint player has to follow the SFZ standard, and one of the basic requirements is to have native support for relative paths when loading a SFZ file.

Code: Select all

<control>
...
// The default path is one level above the preset's current directory, and it's called "Samples"
default_path=..\Samples\
...

<group>
...

// Load sample located one level above default_path
<region> sample=..\hammer.wav
key=0
If you want to test it by yourself, you can download B-211 from here: https://github.com/KaleidonKep99/Steinw ... master.zip

Admin
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Posts: 435
Joined: Tue Mar 17, 2015 9:22 am

Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Mon Jun 03, 2019 11:58 am

Hi there!
Long time mo see...
I guess it is a problem related to the path, but I will investigate in more details at a later moment. Right now occupied with my VST instrument VSTSynthFont (of which there is a 54 bit version as well...).

Admin
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Posts: 435
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Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Wed Jun 05, 2019 3:11 pm

The major issue seems to be the use of this construct:
//SINC - BEGINNING OF INCLUDE SECTION

#include "Extensions/ECO/1960 Steinway B-211.key"

//EINC - END OF INCLUDE SECTION

This doesn't seem to be a documented feature? Clever, though.

KaleidonKep99
Posts: 14
Joined: Tue Mar 17, 2015 7:42 pm

Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by KaleidonKep99 » Sun Jun 09, 2019 2:38 pm

Admin wrote:
Wed Jun 05, 2019 3:11 pm
The major issue seems to be the use of this construct:
//SINC - BEGINNING OF INCLUDE SECTION

#include "Extensions/ECO/1960 Steinway B-211.key"

//EINC - END OF INCLUDE SECTION

This doesn't seem to be a documented feature? Clever, though.
I tried an older version of my SFZ that didn't use the #include feature (Which is part of SFZ 3.0 afaik), and it still refuses to load the samples.
You can find the old presets in the "Outdated presets" folder.

Admin
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Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Mon Jun 10, 2019 5:47 am

Great. I'll try it. I will soon release a new version of my VST plugin (with support for multiple CPU threads - should have done this years ago) and after that I'll continue to work on SynthFont2. But I have only this week left before summer vacation which will be o v e r l y long this year...

Admin
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Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Mon Jun 10, 2019 2:34 pm

<control>
hint_ram_based=1
"hint_ram_based" is not a standard command. Remove the line and try again.

Admin
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Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Mon Jun 10, 2019 6:49 pm

There is one other issue I find slightly problematic. The document from Cakewalk (here: http://www.synthfont.com/Cakewalk_sfz.pdf - the only one I have) says this.
Opcodes within a region can appear in any order, and they have to be separated by one or more spaces or tabulation controls. Opcodes can appear in separated lines within a region.
I have assumed that this is valid for <group> and <control> also. This means that no spaces (or tabs) are allowed within an opcode definition. Hence, this is not allowed:
<control>
label_cc14=Piano volume
label_cc15=Hammers volume
label_cc20=Pedal volume
label_cc64=Damper pedal
It should be coded like this:
<control>
label_cc14=Piano_volume
label_cc15=Hammers_volume
label_cc20=Pedal_volume
label_cc64=Damper_pedal
Strictly speaking...

Personally I find this original specification quite strange and not very clever at all, but who am I to say. SFZ is an open format, which is both good and bad.

KaleidonKep99
Posts: 14
Joined: Tue Mar 17, 2015 7:42 pm

Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by KaleidonKep99 » Thu Jun 13, 2019 1:19 am

Admin wrote:
Mon Jun 10, 2019 2:34 pm
<control>
hint_ram_based=1
"hint_ram_based" is not a standard command. Remove the line and try again.
Unrecognized opcodes should be ignored, so it's not a big deal.
Admin wrote:
Mon Jun 10, 2019 6:49 pm
There is one other issue I find slightly problematic. The document from Cakewalk (here: http://www.synthfont.com/Cakewalk_sfz.pdf - the only one I have) says this.
Opcodes within a region can appear in any order, and they have to be separated by one or more spaces or tabulation controls. Opcodes can appear in separated lines within a region.
I have assumed that this is valid for <group> and <control> also. This means that no spaces (or tabs) are allowed within an opcode definition. Hence, this is not allowed:
<control>
label_cc14=Piano volume
label_cc15=Hammers volume
label_cc20=Pedal volume
label_cc64=Damper pedal
It should be coded like this:
<control>
label_cc14=Piano_volume
label_cc15=Hammers_volume
label_cc20=Pedal_volume
label_cc64=Damper_pedal
Strictly speaking...

Personally I find this original specification quite strange and not very clever at all, but who am I to say. SFZ is an open format, which is both good and bad.
Spaces ARE allowed for labels actually... :D
The original documentation is outdated and should not be followed anymore.
Image

You should take a look at the latest documentation from ARIA: http://ariaengine.com/overview/sfz-format/

Admin
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Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by Admin » Thu Jun 13, 2019 8:39 am

This first "problem" (unknown opcode) is of course the only bug I have found in the code so far. There is a code snippet supposed to remove unknown opcodes but it didn't work. Fixed now and will work in next version.

I have looked at the site you referred to but I must be blind - I cannot actually find a document that specifies the new SFZ format. I found two files to download: csfptpu-v2-downloads.zip and cs2-z2-update.zip but neither one seems to contain any specifications. The "Unofficial SFZ format information" doesn't say much. Please help me out here with a another link - or if you just simply can upload a PDF with the new specs would be even better.

KaleidonKep99
Posts: 14
Joined: Tue Mar 17, 2015 7:42 pm

Re: SynthFont 2.2.3.0 fails to load SFZ with relative paths

Post by KaleidonKep99 » Thu Jun 13, 2019 11:36 am

Admin wrote:
Thu Jun 13, 2019 8:39 am
This first "problem" (unknown opcode) is of course the only bug I have found in the code so far. There is a code snippet supposed to remove unknown opcodes but it didn't work. Fixed now and will work in next version.

I have looked at the site you referred to but I must be blind - I cannot actually find a document that specifies the new SFZ format. I found two files to download: csfptpu-v2-downloads.zip and cs2-z2-update.zip but neither one seems to contain any specifications. The "Unofficial SFZ format information" doesn't say much. Please help me out here with a another link - or if you just simply can upload a PDF with the new specs would be even better.
The documentation for SFZ 2.0 should be in Chapter 13 of Cakewalk's package. (csfptpu-v2-downloads.zip)
There's also more stuff here: http://drealm.info/sfz/plj-sfz.xhtml

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