English? Anyone?

Hello there!
Essentially, drum sounds are presets, but since they are produced using a noise generator, different samples of the same preset will be slightly different.
Tonal sounds can be manipulated. There are three types of envelope and three types of filters (low-pass, band-pass and high-pass). But the filters are not tunable, so the timbre of the sound differs in different octaves.

Do you want to create some melody as source text and play it to the ЯЗС ?

У нас кто нибудь уже копался с компиляторами мелодий для ЯЗС ?

As such 'samples'  the ЯЗС doesn't have.
It have five tonal generators (with more than 1000 available freq) with meander output. This needs to be multiplied by several subsequent managed filters. This gives a huge number of possible output spectra. This is further complicated by the fact that the switching of some parts of the circuit is not instantaneous and in itself gives the sound strichs.
Plus noise generators with self tunes.

Those. it is impossible to get a certain limited set of samples - there will be an uncountable number of them.

There was a certain compiler that created commands for the ЯЗС from the textual notation of notes.
The text entry looked like this :

K1 ; Voice

S12 Z3 O4 L4 / [:2
                                           ; introduction
G3.) E3.)
C3.) P \ B) / C) 
D3.) \ B3) A)
G3. P. Z5 G5) F5#) G5
                                           ; couplet 1
B) A. G5#) A) B) / C)     
E P D) P D) E) 
F#) D) \ B) / C5# C6#) E6) D.) C5#) \
B3. P B) / C) \

B) A. G5#) A3) B5) / C5)
E P D) P D) E)
F#) \ G#) A) / G5) A6) G6) F#.) E5)
D) S11 D3.) S10 P3 \ S12
                                           ; refrain
G3.) / E3.)      
C3. P \ A) B) /
C) \ B) / C) F# P. E5)  
C3#.) D3) P \

or

;         "" Hands Up Give Me Your Heart ""

;                                         music by Ottawan


K1 ; Bass

S14 T34> O2 L4 Z3 [:5

A3 E G) A3 E A)                           ; intro
D3 \ A / C) D3 \ A / D) 
G3 D E) G3 D E) 
G3 D E) G3 D G) ]

C3 \ G A) / C3 \ G A) /
C3 \ G A) / C3 \ G / C) 
G3 D E) G3 D G) 
D3 \ A / C) D3 \ A / D) [:2 [:2

G3 D E) G3 D E)                           ; couplet 1
G3 D E) G3 D G)  
E3 \ B / D) E3 \ B / D)
E3 \ B / D) E3 \ B / E)
......................

But at now nobody who know how it work :(  /?? or anybody know ??/

Have only getstarted text about this compiller.
Some time ago we talk about it: http://forum.agatcomp.ru//viewtopic.php?id=45 .

Here are the drum samples. The sound card has a total of 7 channels: 5 for tonal sounds and 2 for drums. Channel 6 generates drum sounds (toms), file names for this channel start with C6_. Channel 7 generates hi-hats, file names for this channel start with C7_.
Although the sound card is internally mono, it contains a pseudo stereo circuit, so the samples are in stereo. 

bobpoljakov пишет:

I'm actually doing research for a book on Soviet - and Eastern Bloc - synths, drum machines etc.

Wow, that's great. It would be interesting to see the result.

ЯЗС certainly has modest sound synthesis capabilities, but, on the other hand, it does not seem that its designers were trying to compete with the best Western synths. There is a book written by the staff of the Novosibirsk Conservatory, who created the software for this sound card, in which they mention the sound card as a means of entertainment and self-learning.

If you want a general idea of how this sound card sounds, you can watch this video.

Have you already checked out the drum samples I linked to in my previous post?

As for individual notes, I'm working on it.
You know, the problem is that not all the software for this sound card that we have is functional. Also, there was no description of how to use this software. Therefore, we had to literally reverse-engineer this software in order to understand how to use it :) Not all of this work has been completed at the moment.

There are two music editors for this sound card. One is graphical (it looks fancy), but it's more of a "proof of concept" than a finished product. The other one is for text mode. As far as I understand, it was used to create all the demo songs for the sound card. But it has a very confusing syntax, and it is not clear how to use this editor.

So now I'm trying to come up with my own way to get the sound card to play the sounds I want. This will take some time, so keep calm :)