FM-Chip

Here's another question that arose: is it possible to connect Subj to the spectrum,
which is used in SB and similar cards on the PC. It
provides quite good opportunities - 9 channels, two/three/four-operator FM synthesis.
If someone has already connected, can they report and share their development?
Or maybe someone wants to connect? Or at least share the information and let us connect ourselves?

With respect, Roman aka Megus of Brain Wave corp.

[Team ZX-Spectrum] [Team Agatha Christie] [Team Metallica] [Team Iron Maiden]

... Or are you unforgiven too?

RP> Another question arose: is it possible to connect Subj to the spectrum,
RP> which is used in SB and similar cards on the PC. It
RP> provides quite good possibilities - 9 channels, two/three/four-operator FM synthesis.

Oh, please, don’t do this! This tweeter is absolutely nothing sensible because of its DISGUSTING quality. If you are interested in intelligent FM synthesis, then IMHO you should contact RU.MSX for information. I heard the sound of my friend's FM card on this machine. It's just
RULEZ!!!!!!!!! I have never heard anything cooler! According to some information, the specific
implementation of this card seemed to be an AdLib with a
completely redone analog part. But the sound was simply incomparable to a pussy! IMHO, if you try really hard, you can get native MSX
implementations. They actually had a lot of good stuff there.

P.S. Why are we actually perverted? We also have GS. Or not anymore?

Bye, with a pack of vicious, Pavel Fedin.

RP> If someone has already connected, can they report and share their
RP> development? Or maybe someone would like to connect? Or at least share
RP> information and let us connect ourselves?

Of course it’s possible, but why? A little better AY???
It’s much more interesting to hang WaveTable - at least there are live instruments.
Or GS ;))))

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasan Border Guards]

Once I was in a museum and there, on an old, old stone, an ancient man carved that
Thursday March 19, 1998 right at 14:45, Andrey Khristov wrote to Roman Petrov:

RP>> will we connect it ourselves?

AK> Of course it’s possible, but why? A little better than AY???
AK> It’s much more interesting to hang WaveTable - at least there are live instruments.
AK> Or GS ;))))
^^ It would be good, but it’s too expensive, GS itself is about 240 rubles + expansion
to 512, I think it costs $18 = 330 rubles. And this is too expensive for an ordinary petrumist!

AK> With best wishes - Andrey Khristov (ha...@robin.alt.ru)

Wiz zE BeSt WisHeZ 2 U!
-=JoCkeR/OmEga HaCkErS Grp/1998year=-

PF> Oh, please, don’t do this! This tweeter is absolutely nothing
PF> of anything sensible due to its DISGUSTING quality. If

Nothing of the kind, you yourself admit it below:

PF> you are interested in sensible FM synthesis, then IMHO you should contact
PF> RU.MSX for information. I heard the sound of my friend's FM card on this machine. This
PF> is simply RULEZ!!!!!!!! I have never heard anything cooler! According to some
PF> information, the specific implementation of this card was
PF> seemingly AdLib with a completely redone analog part.

Only the OPL2 synthesizer microscope was taken from Adlib (it’s even better to take
OPL3). In short, you will have to connect it to the spectrum almost the same
as AY.

PF> But the sound was simply incomparable with a puss
PF>! IMHO, if you try really hard, you can get your relatives

Exactly. Therefore, it was very strange for me to read your initial reaction.

PF> P.S. Why are we actually perverted? We also have GS. Or not anymore?

One does not interfere with the other.

__ With cre...@online.nsk.su
__/// Best 39:245/1.0@amiganet
\XX/ Regards 2:5000/28.19@fidonet

AK>> instruments are alive. Or GS ;))))
AH> ^^ It would be good, but it’s too expensive, the GS itself is about
AH> 240 rubles + expansion to 512, I think it costs $18 = 330 rubles. And this is too expensive for the ordinary
AH> spetrumist!

And why the hell is Spectrum unnecessary. I imagine myself first loading several floppy disks of samples into Goose, and from the last one a program
on 48k. :))
Sincerely
┬ ┬┌┐┬┐ ┐┬┬
╨╜╨╙╜╨╙ ╨ ╨

VY> And why the Spectrum is unnecessary. I imagine myself loading several floppy samples into Goose first
VY>, and from the last the program
VY> to 48k. :)). ╨ґ╨╙ґ╨╙ ╨ ╨

AK> One does not interfere with the other.

It does not interfere, but why? By the way, the creators of GS promised that its program could supposedly be changed. So, in theory, you can do without OPL. And again, while we're on the subject, where is the promised 1 MB of memory?

Well, I wouldn’t say that AY is a little better, but much better, BUT only in
in terms of melodic instruments. In terms of drums, the FM-Chip is no good, so if you connect it, then you need to make a parallel
sound of AY and FM-Chip, so that, for example, you can put drums and bass on AY, and everything else on FM, since it will cope with this very well.
And there are more channels on Subj, whole ones 9.
AK> It’s much more interesting to hang the WaveTable - at least there are live instruments there.
And the difference is what to hang - WT or GS? The same thing - digitized
samples.

At 17:56, Thursday March 19 1998 it was such a thing that
Pavel Fedin scribbled out a letter from Roman Petrov:

PF> it doesn’t look like much because of the DISGUSTING quality. If
Well, I don’t know about the disgusting quality, maybe I just haven’t heard how MSX
sounds, but at least what I heard in myself sounds very decent
sounds.
PF> Seems like AdLib with a completely redesigned analog part. But with a pussy
How is that? Ablib is built on an FM chip and how was the analog part redone?
Or am I missing something (I haven’t seen Ablib’s circuit for a long time).
PF> Get native MSX implementations too. There they generally had a lot
PF> of everything good.
Well, I’m not against it, as long as it doesn’t make the construction much more expensive.

PF> Well, what's the problem?

The problem is that I couldn't find any information on OPL3. There is a pinout
for OPL2, but it’s a bit difficult to find.

PF> It doesn’t interfere, but why? By the way, the creators of GS promised that its program
PF> could supposedly be changed. So, in theory, you can do without OPL. And one more thing,

It’s possible, but I’m unlikely to buy the GS. Why do I need it? ;)

PF> while we're on the subject, where is the promised 1 MB of memory?

This is for the authors ;)

... and it’s even better to take OPL4 with 2Mb Wavtable ROM.
AK> In short, you’ll have to connect it to the spectrum almost the same way as
AK> AY.
If anyone decides to port it, I can recommend the YAMAHA Sound Edge SW20-PC

Bye!

[dE ETERNAL MSX Crew] ╓ Mike Wolf╖
╚══════════╝
... Name sister, name!

RP> Well, I’m not against it, as long as it doesn’t make the construction much more expensive.

Why? After all, MSX is also on the Z80 with all that that implies. And therefore
no matching devices are needed at all.

RP> So GS is digital samples, and here is synthesis, you can do a lot with a smaller volume
RP> (of course, you won’t get live samples - after all
RP> synthesis).

Once it was promised that the GS program could be changed. Why not finally realize this opportunity and put a software synthesizer in there?
This is the first thing. Secondly, your mother’s RAM is not wasted anyway.

PF>> I meant SB specifically, and not FM synthesis in general.

AK> Where did you see the word SB in this conversation ;)

At the very beginning.

AK> The problem is that I didn’t find any information on OPL3. For OPL2 there is a pinout
AK>, but it’s a bit difficult to find.

There should be info.

AK> It’s possible, but I’m unlikely to buy GS. Why do I need it? ;)

Why do you need FM? ;-)

AK>> almost the same as AY.

MV> If anyone undertakes to port, I can recommend YAMAHA
MV> Sound Edge SW20-PC

We have installed two AYs here and write music for them.
If only someone shared the circuit diagram and software for it... ;)

Yours sincerely, Alexey Ivanov

__ With cre...@online.nsk.su
__/// Best 39:245/1.0@amiganet
\XX/ Regards 2:5000/28.19@fidonet

Why? Digital cannot always replace synthesis. If you do everything in
Digital, then you can waste a huge amount of memory for instruments
(this is especially true for ravers/acid players and the like - they love
stuffing a digitized TB-303).

> RP> So GS is digital samples, and here is synthesis, you can do a lot with less volume
> RP> (of course, you won’t get live samples - after all
> RP> synthesis).
>
> Once it was promised that the GS program could be changed. Why not
>finally implement this feature and stuff a software synthesizer in there?
>This is the first thing. Secondly, your mother’s RAM isn’t wasted anyway.

PF> Why do you need FM? ;-)

It was a shame! But with GS it’s a different story, I have something to play
digital music on without it.

WBR, Alex Kovrigin <cre...@online.nsk.su>

... CD32PPC

Bpppp... Well, tell me about this beast (you can use soap). Of course, I know
what OPL4 is, but actually I always thought that it was a four-operator
FM synthesis chip, and then suddenly there was this statement.
AK>> In short, you will have to connect it to the spectrum almost the same way
AK>> as AY.
MV> If anyone takes it up If you want to port, I can recommend YAMAHA Sound Edge
MV> SW20-PC
Sorry for the dumminess - what kind of beast is this?

At 04:33, Sunday March 29, 1998 there was such a thing that
Alexey Ivanov scribbled a letter All:

AI> We installed two AYs here and they write music for them.
AI> If only someone shared the circuit diagram and software for it... ;)
Well, let’s give you a circuit diagram from anyone with even a little respect The ironworker will portray himself in a few hours. But about the software... You need to ask Flash - they were the first to implement such a bloat in our country (and they were the ones who established the standard for the second pair of ports). In general, somewhere over the hill (and a very close foreign country at that) they connected as many as 3 AY. I read this in some Polish/Slovak demo. Judging by the effects, the demo was quite old.

PF> P.S. Why are we actually perverting? We also have GS. Or not anymore?

Why are they perverted? there are also WaveTable daughters that cling to midi
(anywhere) and sound very, very good...

Good Luck...

... Backup not found: (A)bort (R)etry (T)hrowup

> AK>> It’s possible, but I’m unlikely to buy the GS. Why do I need it? ;)
> PF> Why do you need FM? ;-)
>
>It was a shame! But with GS it’s a different story, even without it I have something to play digital music on.
>
> WBR, Alex Kovrigin <cre...@online.nsk.su>
>

PF> This is in RU.MSX. They'll tell you more there.
So be it, I'll sign up, I'll let you know the results later (if anything interesting happens).

PF> Once it was promised that the GS program could be changed. Why not finally realize this opportunity and put a software synthesizer in there? This is the first thing. Secondly, your mother's RAM
PF> is still not wasted.
I willingly believe that it is not wasted, and that the program can be changed, but
is it possible to write a software synthesizer at 12 MHz and also channels
6-8, and even though for each channel you will have to mix 2-3
waves. If my software synthesizer on a PC works with brakes
(with a time delay), then what will happen on the Speccy? IMHO, it’s better to connect an
FM chip (albeit more expensive, but better).

AK>> It was a shame! But with GS it’s a different story, even without it I have something to play
AK>> digital music.
TO> HA HA HA Are you talking about Covox or Sound Drive here?

I have an Amiga, where it’s much more convenient to do this.
And if you really want to store modules on floppy disks, then these are
your problems.

TO> Find something to listen to.......

Think first, then speak.

>> synthesizer?

TO> YES, please change it as you want... You don’t have to touch the ROM at all,
TO> but load it into your own
TO> RAM and run it there. If you don’t know how to write something, I’ll throw in the info...

Why in ZF6, when the description of the GS commands was given, not a word was said about this?

AK>>> It’s possible, but I’m unlikely to buy the GS. Why do I need it? ;)
PF>> Why do you need FM? ;-)

PF>> I meant specifically SB, and not FM synthesis in general.
RP> Damn, well, as soon as you Amizhniki don’t mock us with pisishniks.
RP> A little off-topic - but what is so particularly useful about the sound of Ammy?
RP> Answer, pls, with soap!

I will answer in an echo in order to put an end to such statements once and for all!
So, did I say ANYTHING on the topic “on the Amiga it’s a rulez.” Yes, on
Amiga, let it be known, there is only software synthesis of sounds.
And if you do the same on a PC, then it will work EXACTLY THE SAME. And as for the FM synthesis of SB, I think that you yourself will agree that playing THIS
SAME, BUT WITH REAL SAMPLES, is much better.

RP> Why? Digital cannot always replace synthesis. If you do everything in
RP> Digital, then you can waste a huge amount of memory for instruments
RP> (this is especially true for ravers/acid players and the like - they love
RP> to cram a digitized TB-303).

Regarding digitization: you mean the voice, right? And how are you going to synthesize it, let me ask?

RP> Well, let’s say anyone with even a little self-respect
RP> can draw a circuit diagram for you in a few hours. But as for the software...

It is clear that it will be depicted, but different hardware people can do the addressing differently,
which will lead to the brood of software under the specific scheme. Therefore, such information
should appear promptly.

Sincerely, Alexey Ivanov

WBR, Alex Kovrigin <cre...@online.nsk.su>

... CD32PPC

PF>> P.S. Why are we actually perverting? We also have GS. Or not anymore?

MR> why are they perverted? There are also WaveTable daughters that connect to midi
MR> (anywhere) and sound very, very good...

Moreover. If only we had MIDI...

RP> I willingly believe that it will not be wasted, and that the program can be changed, but
RP> is it possible to write a software synthesizer at 12 MHz and also channels
RP> for 6-8, and even though for each channel you will have to mix 2-3
RP> waves. If my software synthesizer on a PC works with brakes
RP> (with a time delay), then what will happen on the Speccy? IMHO, it’s better to connect
RP> an FM chip (even if it’s more expensive, but it’s better).

By the way, why FM? After all, .MIDs take up little space not because they are played via FM, but because they don’t contain samples, only numbers. Well,
in this regard, a question for the GS developers: why not flash these
128 samples into ROM?

Alex Kovrigin <Alex.K...@p19.f28.n5000.z2.fidonet.org> wrote:
>Hello Pavel,
> In a message dated 02 Apr 98 you wrote to me :
>
> AK>> And it was a shame! But with GS it’s a different story; even without it I have something
> AK>> to play digital music on.
> PF> And what? On Covox? Or on AY? Well, well. :-)))))
>
>Think better.

PF>>> I meant specifically SB, and not FM synthesis in general.
^^^^^^^^^^^^^^^^^
PF> forever! So, did I say ANYTHING on the topic “here on the Amiga -
PF> rules.” Yes, on the Amiga, let it be known, there is only
You didn’t say that, but it was implied, because... you said that the tweeter (SB)
cannot provide decent quality.
PF> software synthesis of sounds. And if you do the same on a PC, then
PF> will work EXACTLY THE SAME. As for the FM synthesis of SB, I think
PF> that you yourself will agree that playing THE SAME, BUT WITH REAL SAMPLES,
PF> is much better.
I wonder what? I can clearly explain that if you take a digitized
synthesized instrument (even if it’s the same FM synthesized one), then when played its quality will be in some respects worse than with pure
FM synthesis.

RP>> instruments (especially for ravers/acid players and
RP>> like them - they like to stuff a digitized TB-303).
PF> Regarding digitization: you mean the voice, right? And how are you going to let
PF> ask him to synthesize?
No, I meant all kinds of acid envelopes (an excellent example of this
on the Spectrum is the music from Vibrations, Binary Love). It is precisely these samples
that eat up the most volume in many PC/Amiga music.

At 10:15, Thursday April 02 1998 there was such a thing that
Alexey Ivanov scribbled a letter from Roman Petrov:

AI> It is clear that he will depict, but different hardware people can address
AI> differently, which will lead to the brood of software under the specific scheme. Therefore
AI> such information should appear promptly.
So the standard for addressing has already been introduced by Flash, but I don’t remember their
ports, I’ll have to look it up. You can look for it yourself - in the first (or one of
the first) Flash Time magazine.

AK>>>> It was a shame! But with GS it’s a different story; even without it I have something
AK>>>> to play digital music on.
PF>>> And what? On Covox? Or on AY? Well, well. :-)))))

PF>> And on what? On Covox? Or on AY? Well, well. :-)))))

AK> Think better.

Oh, yes. On the Great and Incomparable Pentium. How stupid I am, but I didn’t even realize it right away... Shouldn’t I just throw this Spectrum out then, huh? Just think, 128
kb of memory, when the Pentium has as much as THIRTY-TWO MEGABYTES!!! And
Windows is not on the Spectrum...

Hi, Pavel!

03 Apr 98, Pavel Fedin writes to Roman Petrov:

PF> By the way, why FM? After all, .MIDs take up little space not because
PF> they are played via FM, but because they do not contain samples, but only
PF> numbers. Well, in this regard, a question for the GS developers: why
PF> not flash these 128 samples into ROM?

This will be called WaveTable.
Convenience of downloaded samples - no limitation to the musician’s imagination.
Convenience of permanent samples - reducing the size of music.

Imho you need both this and that ;))))

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasan Border Guards]

PF> Oh, yes. On the Great and Incomparable Pentium. How stupid I am, but - right away

Brake. In this case, I and FM synthesis on the Speccy wouldn’t need it.

PF> I wouldn’t have guessed... Shouldn’t we just throw away this Spectrum then, huh?
PF> Just think, 128 KB of memory, when the Pentium has as much as THIRTY-TWO
PF> MEGABYTES!!! And there is no WINDOWS on the Spectrum...

Look more carefully at what I’m writing from, and then scare me with Windows...

PF> Moreover. If only we had MIDI...

pf... there is a 580 series serial controller. in my opinion VI51 or
something like that... the port is generally serial. So, by installing it
we will be able to connect WT without problems. a added
midi agreement - full midi.

Good Luck...

... FILES=1 BUFFERS=0 FCBS=SAYWHAT BREAK=GIMME

Sat 04 Apr 1998 22:32, Roman Petrov wrote to Alexey Ivanov:

RP> So Flash has already introduced the addressing standard, but I don’t
RP> I remember their ports, I’ll have to look. You can look for it yourself - in
RP> the first (or one of the first) Flash Time magazine.

...did you enter it for yourself? The standard must be accepted by the programmer. One person will like one option, the other will like another. And if a stubborn ironworker comes across, out of principle he will do it his own way and also declare it a standard. ;)

Sincerely, Alexey Ivanov

For reference, MIDI uses not 128 samples, but approximately 170-180
(127 GM instruments, and the rest are drums). Taking into account the fact that even with lousy sound (as on AWE 32), these samples take up 512 kilobytes (for comparison, the GM set for GUS is about 7 megabytes). Will you find such volumes in GS? But to play MIDI, the polyphony should be not 4 or 8 channels, but at least 24, preferably 32, or more. By the way,
MIDI does not limit the number of channels, it is theoretically all 16 MIDI Channels,
all notes are pressed on each of them (like 8 octaves).

Hi, Max!

05 Apr 98, Max Romanoff writes to Pavel Fedin:

MR> pf... there is a serial controller of the 580th series. in my opinion VI51 or
MR> something like that... the port is generally serial. So, by installing it
MR> we will be able to connect WT without problems. and adding
MR> midish matching - full midi.

Your thoughts are in disarray.
WT does not use serial ports. It is installed _instead_ of the OPL chip and itself executes
its commands, but it sounds very different.
And the serial port is called MPU401...

RP> I wonder what? I can clearly explain that if you take a digitized
RP> synthesized instrument (even if it is the same FM-synthesized one), then when
RP> is played its quality will be in some respects worse than with pure
RP> FM-synthesis.

And I said “REAL” samples. I hope you'll agree that it's better to play
for example, a sample of a real piano with a sampling frequency of hell,
let it be 22 kHz, than to squeak with its poorly synthesized analogue.

RP> No, I meant all kinds of acid envelopes (an excellent example
RP> of that
RP> on the Spectrum - Mouzon from Vibrations, Binary Love). It is precisely these
RP> samples
RP> that eat up the most volume in many PC/Amiga music.

Well, envelopes can be implemented in hardware. So we get a system
which has no analogues anywhere yet.

Not so great, not so incomparable...
PF> I didn’t even guess right away... Shouldn’t I then throw out this Spectrum
PF> for the hell of it,
PF> huh? Just think, 128 KB of memory, when the Pentium has as much as THIRTY-TWO
But on the Spectrum, the Hero Quest game takes up half a cassette and requires 48 KB,
and on the IBM it takes 34 MB and requires 8 MB....

PF> By the way, why FM? After all, .MIDs take up little space not because
PF> they are played via FM, but because they do not contain samples, but only
PF> numbers. Well, in this regard, a question for the GS developers: why
PF> not flash these 128 samples into ROM?

MR>> midi (anywhere) and they sound very, very good...

PF> Moreover. If only we had MIDI...
I don’t remember exactly, but I read something a long time ago in a book about the ZX-Sp128 that there should be a MIDI output... I’m not sure, but it seemed like it was. It even seems to be
supported from BASIC...

At 20:24, Monday April 06 1998 there was such a thing that
Andrey Khristov scribbled a letter from Pavel Fedin:

AK> This will be called WaveTable.
AK> Convenience of downloaded samples - no limitation to the musician’s imagination
AK> Convenience of permanent samples - reducing the size of the music.

AK> IMHO we need both this and that ;))))
Really, maybe we can connect AWE 32/GUS or something else right away?
But why?

AK> Your thoughts are a mess.
AK> WT does not use serial ports. It hangs _instead_ of the OPL chip and
AK> itself carries out its commands, but it sounds very different.

Think about what the OPL sits on? On the port!

AK> And the serial port is called MPU401...

Actually the same serial port. Have you ever seen a MIDI mode for COM1/COM2 in the bios setup
?

PF>> Oh, yes. On the Great and Incomparable Pentium. How stupid I am, and - right away

AK> Brake. In this case, I wouldn’t need FM synthesis on the Speccy.

I apologize, but what else?

AK> Look more carefully at what I’m writing from, and then scare me with Windows...

AK> --- Mail Manager 1.22x/n #1509

Sorry. ;-)

PF>> Well, in this regard, a question for the GS developers: why

AK> Your thoughts are out of order.

order.

AK> WT does not use serial ports. It hangs _instead of_ the OPL chip and I myself

explain for the downs: WaveTable, for example Yamaha compatible, can
be installed not only in writing cards, but also in synthesizers. it has
a MIDI image interface.

by feeding it standard or extended MIDI structures - it
begins to produce the corresponding sounds.

roughly speaking, this WT is a small synthesizer, without keys, as
musicians say - these are brains. those. black box emitting
sounds with MIDI input and audio output.

idea clear?

/ 1 2 Better leave pins without
| 3 4 MIDI In any description unconnected!
digital | 5 6 +5V
GND | 7 8 MIDI Out
| 9 10 +5V
\ 11 12
13 14 +5V
/ 15 16
| 17 18 +12V
analog | 19 20 Left Audio
GND | 21 22 -12V
(Audio) | 23 24 Right Audio
\ 25 26 !Reset (active low)

!Reset is Active Low. MIDI In/Out and !Reset are TTL level signals. MIDI is
transmitted at 31250 Baud, 8 bits, 1 start bit, 1 stop bit.

Good Luck...

... Southern DOS: Y'all reckon? (Yep/nope)

Done a long time ago. But!

1) I don’t recommend using the 580 series - the performance is not enough.
Still, MIDI is 31250 baud...

2) Optocouplers are needed for the full implementation of the current loop. AOT101BS showed very good
results, although in a somewhat “overloaded” current
phototransistor mode.

Sincerely, George

PF> I apologize, but what else?

Yes, everything is on _her_ ;) From my point of view, copying modules (while
making sure that their size does not exceed a certain figure) from a screw
onto Spectrum floppy disks in order to listen to them on GS is a rather stupid
thing, besides I don't have that many floppy disks; I don't have enough for programs/games. So I definitely don’t need GS.

AK> Actually the same serial port. I’ve never seen a MIDI mode for COM1/COM2 in the bios setup
AK>?

Mmmm...
When they say RS232 or COM, the immediate question is - which one? (1-4)
When they say COM2 - it’s immediately clear what address and IRQ
When they say MPU401 - it’s immediately clear that this is a midiport with native addresses.

I repeat once again: OPL/WT does not use any “Serial” transactions and just
sticks out in the I/O space.

EO> I don’t remember exactly, but I read something a long time ago in a book about the ZX-Sp128 that
EO> there should be a midi output... I’m not sure, but it seemed like it was. Even from
EO> BASIC was supported...

There is something relatively there coprocessor ports, but there is no documentation on this matter.

EO> And to achieve the required quality, samples should be sampled at 44 kHz.
EO> Well, this is of course too much. Therefore, it is better at 22 kHz. And it turns out that for the price
EO> of a good FM synthesizer, we will get a mediocre TW.

IMHO 44 kHz is not so mediocre.

AK> WT does not use serial ports. It hangs _instead_ of the OPL chip and
AK> itself carries out its commands, but it sounds very different. And the serial port is called
AK> MPU401...

This is on sound cards from IBM. But in fact, this is the name of an ancient
standard that these cards are trying to comply with (not everyone succeeds...)
The MIDI port for the Spectrum works great on the 8251, but getting them
is not easy. Although lighter than the Z80SIO...

Best regards George

RP> For reference, MIDI uses not 128 samples, but about 170-180
RP> (127 GM instruments, and the rest is drums).

I'm aware. I just said this for simplicity.

RP> Taking into account the fact that even
RP> with lousy sound (like on AWE 32) these samples take up 512
RP> kilobytes (for comparison, the GM set for GUS is about 7 megabytes). Will you find
RP> such volumes in GS? But to play MIDI, the polyphony should
RP> be
RP> not 4 or 8 channels, but at least 24, preferably 32, or more. By the way,
RP> MIDI does not limit the number of channels, it is theoretically all 16
RP> MIDI-Channels,
RP> on each of them all notes are pressed (like 8 octaves).

Okay, I persuaded you.

AK> Yes, everything is on _it_ ;)

Amiga is, of course, good. But GS was made not to outdo anything (for that matter, let's install SUN and let's trudge ;-)), but so that the Spectrum would also have something, so that it would have
the opportunity to have good sound in programs on it too.

The FM-chip has already been discussed a lot here, but does anyone have more information about
what's inside it? Maybe this matter is being resolved in ALTER?

Ivan, with Big Greetings.

ZX-Spectrum - #10 years!

RP> MIDI-Channels, on each of them all notes are pressed (like 8 octaves).

In addition, you can also arrange the necessary instruments in groups and switch
immediately to the desired group. Each MIDI channel will have a hundred instruments!
;)

Sincerely, George

PF> There is something there regarding coprocessor ports, but there is no documentation on
PF> this matter.

in fact, BASIC128 is an emulant on one leg of a music player Midish
sequences. this is a fact.

Good Luck...

... My software never has bugs. It just develops random features.

AK> I repeat once again: OPL/WT does not use any “Serial” transactions and
AK> just sticks out in the I/O space.

If you hook them up like a simple buzzer, then really so.

And if you need to make a full-fledged MIDI interface, then You can’t do without a
serial port (read UART).

IM> There is already a lot of discussion about the FM-chip here, but does anyone have information
IM> in more detail about what’s inside it? Maybe this matter is being resolved in ALTER
IM>?

do you want some advice? You go to ao. GAMMA, and you take the Zilog catalog from them. there
there is a mikrukha on which OPL is implemented and compatible with SB2.2...
mikruha. Is the idea clear? you still can't do it on alter.

Good Luck...

... Macintosh: Just like Nintendo but not as much fun.

GS> 1) I don’t recommend using the 580 series - the performance is not enough.
GS> Still, MIDI - 31250 baud...

any similar software functionality...

GS> 2) Optocouplers are needed for the full implementation of the current loop. AOT101BS showed very
GS> good results, although in a somewhat “overloaded”
GS> phototransistor current mode.

Why? If we do not have the task of implementing complete MIDI,
but only the need to bring TTL levels to WT...

Good Luck...

... This tagline uses advanced Object Oriented technology.

IM> There is already a lot of discussion about FM-chip here, but does anyone have any information

IM>> getting divorced?
MR> want some advice? You go to ao. GAMMA, and you take the Zilog catalog from them. there
MR> there is a mikrukha on which OPL is implemented and compatible with SB2.2...
MR> mikrukha. Is the idea clear? You still can’t do it on altera.

This is, of course, good, but the microscope costs a lot of money. Again, you can’t insert it onto a divorced board just like that. But the PLM is already there and it’s not a fact that the FM-Chip
is not implementable on it.
Now the Sprinter has already got a sound card with 16 voices, the one that
was said earlier was 8.

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasansky border guards]

IM> This is, of course, good, but the gadget costs money. Again, it's worth it, but much cheaper than what you invent...

IM> you can't insert a divorced board like that. But the PLM is already there and you can’t insert it, but why do you have the slot? What the hell with the sound, let
users install sound blasters. S?

IM> the fact is that FM-Chip is not feasible on it. Now on Sprinter already

it will be WORSE than the musical...

IM> the result is a soundcard with 16 voices, the one about which I said earlier that
IM> 8.

so, huh, in the form in which you can implement it - it
will simply either repeat the sample part (->what the hell is necessary), or
it will be really FM saxy...

Good Luck...

... Apple Mac'n'toss - Throw your apples away!

MR> in fact, BASIC128 emulite on one leg, midish music
MR> sequences. this is a fact.

I am aware that there is something there on port A. But there is no description of what.

AK> By and large - an advanced AY.
AK> My deepest impression is that it is possible to make analogue sound on digital microphones
AK>, but the quality will not be... Still, the concept of WT/GS is more
AK> correct.
It depends on what is meant by quality - if distortion/spectrum, then
FM is cleaner, still the original (I mean purely synthetic sounds,
rather than attempts to obtain the sound of a snare drum using FM synthesis methods :)
The naturalness of the sound of live instruments is WT, but here
the quality in the first sense strongly depends on the digitization parameters and
your deep IMHO ;) is more relevant to WT (my deep IMHO :)

Vitalic

MR> it costs, but much cheaper than what you invent...
An interesting movie. Ten bucks is cheaper than zero?

MR> you can’t insert it, but why do you have a slot? What the hell with the sound, let
MR> users install sound blasters. Y?
You can’t stop them from doing this. :)

IM>> it’s not a fact that FM-Chip is impossible to implement on it. Now on Sprinter already
MR> it will be WORSE than the musical...
If it turns out worse, I won’t do it.

PF> In theory, everything is possible in it.
Everything. Only the PLM is still not rubber.
The one in Sprinter in terms of complexity can contain about 140 m/s
average degree of integration like IE7, KP13, etc.

MR> Why? If we do not have the task of implementing complete MIDI,
MR> but only the need to bring TTL levels to WT...

Why do you need MIDI at all? For me - to listen to high-quality sound.
Therefore, a good sound module... In order to prevent the ports from burning out
due to accidental pulling out of the cord, an opto-isolator is needed. And it’s hard to get rid of interference
from a computer without it...

Sincerely, George

PF>> In theory, everything is possible in it.
IM> Everything. Only the PLM is still not rubber.
IM> The one in Sprinter, in terms of complexity, can contain about 140
IM> m/s of average degree of integration like IE7, KP13, etc.

In theory, the most sophisticated of them can have a processor.

... An analysis of the message that Andrey Khristov made to Ivan Mak:

AK> No, after all, you don’t need to make a sound on the alter.
AK> Maybe you should contact Yamaha and find out how much theirs cost
AK> OPL???
Almost forget about it =)
Yamaha does not engage in retail or small wholesale sales of its products. You will have to
conclude an agreement, etc. It will take a lot of time. It’s easier and I think it’s cheaper to build
(port) ready-made versions of sound cards.

Bye!

[dE ETERNAL MSX Crew] ╓ Mike Wolf╖
╚══════════╝
... I'm a firestarter, twisted firestarter !

PF> I know that there is something there on port A. But what - there is no description.

Damn, I’m telling you: it generates midi there.

Good Luck...

... Every morning is the dawn of a new error...

IM> Interesting movie. Ten bucks is cheaper than zero?

If this $10 will work better than 0, which is undoubtedly true, and it’s unlikely
0 to happen....

IM> Do you think FM non-saxy exists? If it exists, then what does it do
IM>?

look at the music. it's almost the same thing. only simpler.

Good Luck...

... Windows Error 004: Multitasking attempted. System dying.

є─────────────────────────── ────────────────────────
║ On Andrey Khristov wrote to Ivan Mak:
╙────────────────

IM>> 140 m/s with an average degree of integration like IE7, KP13, etc.

PF> In theory, you can install a processor on the most sophisticated of them.

It is possible. And not even the most sophisticated one. And there’s nothing to say at all about specialized processors. There are several of them in the Sprinter PLM..

Ivan, with Big Greetings.

PF>> I know that there is something on port A. But there is no description of what.

MR> damn, I’m telling you: it generates midi there.

But someone says that you can attach a printer to it, and LPRINT from
BASIC-128 prints on it.

PF>> In theory, on the most sophisticated of them you can disable the processor.

IM> You can. And not even the most sophisticated one. And there’s nothing to say at all about specialized
IM> processors. There are several
IM> of them in the Sprinter PLM..

Okay. Advanced processor. ;-)

IM>> a few pieces..
PF> Okay. Advanced processor. ;-)

Today I learned some interesting information. One person made a processor using EPF10K30 for an Elektronika-60 type machine. (This is a 16-bit processor from DVK)

Ivan, with Big Greetings.

28 Apr 98 00:34, Ivan Mak wrote to Pavel Fedin:

IM> Today I learned some interesting information. One person made a
IM> EPF10K30 processor for an Elektronika-60 type machine. (This is a 16-bit
IM> processor from DVK)

Well, what is this? Emulator or clone? :))

Sincerely
┬ ┬┌┐┬┐ ┐┬┬
╨╜╨╙╜╨╙ ╨ ╨

є─────────────────────────── ────────────────────────
║ On Vladimir Yudin wrote to Ivan Mak:
╙────────────────