SFF1 or SFF2?

[Musicnik]

Hello! Please, can you tell me, what's the difference between the SFF1 and SFF2 style format and why Yamaha decided to go to this format in the new keyboards after the PSR s900?

[ikmusic]

Information from the producer of musical styles CAMARO24:
"SFF2 vs SFF1
Format SFF1 jest formatem bardzo "trackożernym". W rozbudowanych stylach SFF2 podczas konwertowania do SFF1 trzeba z wielu rzeczy zrezygnować, np. z brzmień MV, z APPEND ROOT, Crash Cancel Chord, czy APPEND 7TH i wielu innych" 

[Toril S]

The SFF2 format can contain more data. New keyboards have for instance mega voices, so the format had to på changed.

[Jørgen]

...
New keyboards have for instance mega voices, so the format had to på changed.

Hi.
This is not correct, sorry 
The styles in PSR 3000 which is SFF1 format have several Mega Voices...

The SFF2 format can contain more data..
..

However, this is correct...
The ONLY difference between the two formats is the structure of the CASM data.
The CASM data in the style tells the keyboard how to interpret the MIDI data in the style.
The SFF2 format has 3 seperate data settings for low, midrange nad high notes while the SFF1 format has a general data setting for all notes.

Regards
Jørgen

[Musicnik]

Hi.
This is not correct, sorry 
The styles in PSR 3000 which is SFF1 format have several Mega Voices...

However, this is correct...
The ONLY difference between the two formats is the structure of the CASM data.
The CASM data in the style tells the keyboard how to interpret the MIDI data in the style.
The SFF2 format has 3 seperate data settings for low, midrange nad high notes while the SFF1 format has a general data setting for all notes.

Regards
Jørgen

Thank you!

[Toril S]

Thanks Jørgen😀

[pjd]

SFF2 is sometimes known as "SFF GE" meaning "Style File Format (Guitar Edition)". Quoting the old S950 owner's manual:

"SFF (Style File Format)" is an original Style file format by Yamaha which uses a unique conversion system to provide high quality
automatic accompaniment based on a wide range of chord types. "SFF GE (Guitar Edition)" is an enhanced format of
SFF, which features improved note transposition for guitar tracks.

The three ranges (high, mid, low) mentioned by Jørgen provide better support for MegaVoices which split MIDI notes into regular sounding notes (below C6) and special effect notes (C6 and above). The high settings can be set for SFX notes while the mid and low settings handle the "regular" notes. This arrangement lets Yamaha handle a MegaVoice part in a single style Part.

That's probably TMI. 

-- pj

Jørgen, did SFF GE (SFF2) add NTR=GUITAR and NTT={ALL-PURPOSE, STROKE, ARPEGGIO}? Thanks.

[Jørgen]

...
Jørgen, did SFF GE (SFF2) add NTR=GUITAR and NTT={ALL-PURPOSE, STROKE, ARPEGGIO}? Thanks.

Hi
Yes, these two settings were new to SFF2 / SFF GE.
Jørgen