midi
ZXNet echo conference «music.zx»
From Vladimir Larkov → To Roman Petrov 4 April 2000
Hello Roman!
Fri 31-Mar-2000 22:58, you (500:8362/1@zxnet) wrote a letter to Aleksey Pavlov:
AP>> I have a question: is it possible to listen to midi on SPECCY???
RP> It is possible only if you implement a MIDI interface and connect to it
RP> some kind of MIDI device like a sampler. There is no other way.
BTW several years ago in Zonov’s office you could observe the partition
Hare, who seemed to be writing a support for some mid-range piece of hardware. Periodically he
I even demonstrated this blank (a window with a pointer and pictograms).
The piece of iron used to appear in the price list, but then, it seems, it was removed.
With best wishes, Vladimir.
From Valerij Kozhevnikoff → To Vladimir Larkov 5 April 2000
Hello, Vladimir!
04 Apr 00 10:20, Vladimir Larkov -> Roman Petrov:
AP>>> I have a question: is it possible to listen to midi on SPECCY???
RP>> It is possible only if you implement a MIDI interface and connect to
RP>> not some kind of MIDI device such as a sampler. There is no other way.
VL> BTW a few years ago in Zonov’s office you could be behind a partition
VL> observe Hare, who, as it were, wrote a support under a certain midish
VL> piece of iron. From time to time he even demonstrated this blank (window with
VL> pointer and icons).
It’s even completed, when purchasing this piece of hardware the buyer becomes happy
the owner of this program.
VL> The piece of iron used to appear in the price list, but then, it seems, it was removed.
No, she's still there today.
WBR, Jason.
[Team Obituary][Team Friday 13th][Team Evil Maniacs][Team Huge Axes]
From Valerij Kozhevnikoff → To Aleksey Pavlov 5 April 2000
Hello, Alexey!
01 Apr 00 21:40, Aleksey Pavlov -> Roman Petrov:
AP> MIDI device, what is it???
A small piece of hardware that costs $5-10, connects to the computer with three wires +
food. Of course, it has an output to an amplifier. Has 128 melodic tones and 46
drums. It has its own ROM with tools, some also have RAM with the ability
loading external tools.
I can post here a full description and FAQ, a piece of which I have given below.
And I can give you a diagram of how to make a MIDI port the way it was made on the branded ZX.
Those. soldered to AY/YM.
······------====== Monitor glass cutter ======------······
- What is MIDI?
MIDI - Musical Instrument Digital Interface
cal tools) - standard for connecting tools and transmission
information between them. Each instrument has three connectors: In (input),
Out (output) and Thru (input signal repeater), which allows volume
connect almost any number of instruments into a network.
Transmission method - current loop (5 mA). Information is transmitted in bytes,
in serial start-stop code (8 data bits, one stop,
no parity - 8-N-1 format), with a speed of 31250 bps. In this
The MIDI interface is very similar to the IBM PC serial interface - from -
The only difference is in the speed and method of transmission: the PC uses inter-face V24 (RS-232) with signal transmission by changing voltage.
The frequency of 31250 bps cannot be obtained on the standard IBM PC interface.
The data stream transmitted via MIDI consists of messages (events):
pressing/releasing keys, changing the positions of the controls (MIDI-con-
trollers), changing operating modes, synchronization, etc. You could say
that the score of a musical work is transmitted via MIDI, however
There are also special types of messages - System Exclusive (SysEx) - in which
These may contain any information for the tool - for example,
digitized sound for loading into RAM, rhythm block score, etc.
Typically SysEx are unique to each tool and are not compatible with other
with the same instruments.
Most messages contain the channel number (1..16) - this is more common
just the conventional number of the tool on the network for which they are intended
us. However, one instrument can “response” through several channels
- this is exactly how sound cards and many tone generators work (external
synthesis modules). Other messages are general and will be interpreted
all tools on the network.
In messages about key presses/releases, the note number is transmitted -
a number in the range 0..127 that determines the conditional number of the semitone: note
Up to the first octave the number 60 corresponds. This is where the “computer” comes from.
new" numbering of octaves, starting from zero, in which the first octave correspondscorresponds to number 5, and the note up to the zero octave has a zero MIDI number
measures
When recording a MIDI stream to a file (MID, RMI), it is formatted in one of three
standard formats:
0 - normal MIDI stream
1 - several parallel streams (tracks)
2 - several independent sequential threads
Dividing into tracks is convenient for separating parts of individual instruments.
Comrade - popular MIDI sequencers generate files of format 1.
- What are GM, GS and XG?
GM (General MIDI - unified MIDI) - standard for a set of timbres ("instrument-
cops") in musical synthesizers. The synthesizer in the GM standard is obliged
have 128 melodic instruments (with which you can play notes of different
pitch) in channels 1..9 and 11..16, and 46 drum instruments in channel 10
(one note for each instrument). The melodic set consists of 16
groups of instruments (pianos, organs, guitars, strings, winds, drums)
ny, etc.) 8 in each group. All instruments are assigned
numbers (for example, Melodic 0 - Acoustic Grand Piano, Melodic 66 - Alto
Sax, Percussion 35 - Acoustic Bass, Percussion 50 - High Tom), so
the score prepared in GM will sound similar to different GM in-
structures. Unfortunately, the similarity extends only to the “classic”
technical tones - most synthetic (Pad/FX) and many drums
differ greatly in rise/fall rate, volume, color
etc.······------====== Monitor glass cutter ======------······
GS and XG hardware are probably expensive, I won’t talk about them.
WBR, Jason.
[Team Obituary][Team Friday 13th][Team Evil Maniacs][Team Huge Axes]
From Roman Petrov → To Vladimir Larkov 19 April 2000
Hello, Vladimir!
On Tuesday April 04 2000 Vladimir Larkov wrote to Roman Petrov:
VL> BTW a few years ago in Zonov’s office behind the partition you could
VL> observe Hare, who seemed to be writing a support for some midish
VL> piece of iron. From time to time he even demonstrated this blank (window with
VL> pointer and icons). The piece of iron used to appear in the price list
VL> then, it seems, they removed it.
Why was it removed? If the software had been added, then such a thing would be very
useful. Well, you can connect any external instrument with a MIDI interface and
play directly from Specky.
Bye, Vladimir! Megus/Brainwave^X-Project. [I.ZX] [NeOS]
From Alexej Antipov → To All 5 February 2003
So, you've entered the nuclear portal of the Electric Castle, All!
Can you send midi files here? I pulled a bunch of masterpieces from the internet from
"whales" of art rock (very old - 70s, complex, twisted and sophisticated
music) - Camel, Yes, Emerson, Lake&Palmer, Genesis, Marillion, King Crimson,
Italian prog bands. On Spec, as far as I remember, no one has ever tried
reproduce or, moreover, sculpt your own in the same spirit. Try it
Someone at least play now playing ;), although I don’t know if they have enough
Memory/pattern spec.
Sincere via, Alexej aka Marillion.
np - Genesis "Foxtrot" '1972 *** 6. Supper's Ready (midi-version) <23:01>