YM
Sound
Thomas Raukamp
interviews Tao of Cream
![[Photo: Yamaha YM2149F]](images/ym2149f.jpg)
Thomas:
Frank, in the
scene you are known by the nickname, "Tao".
Please introduce yourself to our
readers.
Tao: Hello, I'm Frank
Seemann, 34 years old and living in Hamburg,
Germany. Today I'm earning my
money developing web applications. In the scene
I'm known as chip musician
of the German group Cream and as guest musician in disk
magazines and various demo productions.
Our most popular productions are the music demo
"...do things"
and the multi-format music player "Jam",
which is able to replay standard music formats
from Atari ST, XL, Amiga and C64 on Atari STE
and Falcon.
Thomas:
How did you get
into Atari computers? What is your personal "Atari
story"?
Tao: I got my first
computer, an Atari XL, at the end of 1985. Apart
from a little programming in
BASIC and simple attempts at composing
songs using sound editors, I mainly pushed
my Competition Pro joystick to its
limits. Two years later I bought my Atari
ST. In those days I met Olaf ("Ultra"
of Cream) for the first time. He introduced
me to assembler and demo programming. I started
coding typical effects like
scrollers and sprites before a legendary news
article
of Jochen Hippel made me start
programming the YM2149 sound chip. In the final
days of 1991 I joined the
ACF Design Team and composed the
chip songs for the Just Buggin' demo. Meanwhile I lost
interest in computing. In 1996
we had our comeback as Cream
with two older demos, "STMYGM 2" and
"Steps". After that we released
mainly music-based productions (PlaySid, ...do
things, Jam). MC Laser initiated my personal comeback as a
chip musician in
tSCc's ModComp 14. Now I'm chipping
regularly, mainly for disk magazines.
Thomas:
In the most successful
days of 16-bit computers, the Amiga was considered
to be the system
with better internal sound capabilities. Even
SID of the C64 is regarded to
be more powerful than the YM of the ST. How
did it happen that you used the
Atari for making music anyway?
Tao: Buying the Atari
ST was more a matter of belief than a question
of reason. Although I already
adored SID songs, they weren't the reason for
buying Atari. It was some kind
of religion, that XL users bought an ST, while
C64 people went after the
Amiga. It was all about keeping our rivalry.
My decision to make chip sound
came up later when I learned coding.
Thomas:
What is, in your
opinion, special about YM sound?
Tao: Basically YM
sound
is nothing but pulse waveform and noise. It
couldn't be worse than
that. The YM sound we learned to love is the work
of enthusiasts, who face the
challenge and push this chip a bit. That's exciting.
YM2149 is a
simple chip and despite its limitations there
is always a chance to find a way
of creating new noises. That's how beautiful
effects like "buzzer",
and later, "syncbuzzer" were created.
Effects
you don't have on chips like, for example, SID.
And so YM chip sound gets its typical sound,
its identity.
Thomas:
Do you also work
on other sound chips, for example POKEY in the
Atari XL?
Tao: So far only indirectly.
I have written emulations of SID and POKEY on
Atari ST and I think I know their capabilities. Our demo "...do
things" contains a compilation of
songs based on a SID emulation. I combined a
modified version of my chip sound player
with the DMA chip based SID emulation and am
now able to use the typical
SID features (apart from filters). A POKEY feature,
the polycounter noise,
is included in my chip sound player to create
the typical "metallic" noise
of XL music.
Thomas:
Chip music seems
to be trendy these days, even in "Electronic
Beats" on "VIVA"
you can hear it from time to time. There's also
a manufacturer producing synthesizers
based on the SID. Why, in your opinion, is it
that hip to use chip music
in electronic music today?
Tao: I fear, that
it is really a part of the current eighties retro
trend.
It would be too bad, if
chip sounds were used just for the fashion.
But probably some just remember
their roots. A quite large amount of musicians
had their first steps on home computers,
mainly on C64. For many people, under the variety
of available synthesizers
today, chip sound has got a face. It represents
an era in one's personal biography,
mainly free of worries and crazy, in a positive
way.
And it's got
a message: Listen, less could be more.
Thomas:
In the production
of your current songs, you're using Magic
Synth, your new sound editor and tracker. What are the capabilities of that new
software?
Tao: I'm using three
different editors, and they're not that new.
I've got a pure chip editor that
I'm mainly using. Another one based on a DMA
SID emulation and a third one,
combinig both of them and offering some additional
features.
The chip editor
has got a Soundtracker-like pattern editor,
separate sequence tables for the
single channels, as well as an instrument editor.
The instrument editor offers
commands for effects like vibrato, arpeggio,
noise, buzztone, Sidvoice and syncbuzzer.
Sidvoice can be adjusted in strength and create
an echo effect on a single channel.
There's also a simple editor for small waveforms
for creating effects like
polycounter noise from Atari XL. I'm using only
two timers for Sidvoice, samples are not supported in my current
version. To achieve a
higher resolution in effects, it's able to replay songs at frequencies from 50-500
Hz.
![[Photo: Tao]](images/tao.jpg)
The DMA SID editor
mainly differs from the chip editor in its effects,
which are based on
SID features, as there are pulse-width modulation,
hard sync or ring modulation. The most interesting
is probably the six-voice DMA/PSG editor. It
combines the first two editors,
upgraded by some real-time synthesis effects
in the DMA part.
The three DMA-based
channels
replay waveforms of 128 bytes length. Each channel
can be modified
by effects like ring modulation, hard sync,
wave-shaping
or overmodulation.
Thomas:
I have to say
that Magic Synth produces the best
sound I've ever heard from the YM chip
in the Atari ST. The development of the program
is still in progress.
Can we expect more improvements in the future?
Tao: Yes.
There are
at least two effects I'm working on. A buzzer
effect, which I haven't used
yet and a SID effect, which I'm checking out,
whether it is possible to realise.
I'm spending a lot of time listening to "Kohina"
or "Nectarine" scene radio,
so that there's probably more to come. It's
a great resource
of inspiration for new effects on ST.
Thomas:
Will it end up
as a pure YM editor, or are you planning to
use the extended sound capabilites
of the STE, TT and Falcon?
Tao: I'm not going
to code a sample-based editor like Soundtracker.
Two of the editors described
above, the SID emulation and the six-voice tracker
are based on the
DMA chip of later Ataris. I don't know whether
I will use the features
of the Falcon, but I'm probably going to buy one.
Thomas:
When can we expect
a first public version?
Tao: A public release
has never been the primary aim of developing
the editor. It changes constantly,
is still not documented, partly of trashy code
and buggy, because
I have so far just used it as my personal tool.
Some time ago
there had been the idea of finishing a version
for a public release. Short of time, I haven't been able to motivate myself
to do this. But I can imagine doing a public version some
day.
Thomas:
The direct use
of computer sounds is getting more and more
popular.
On PC and Macintosh
there is already a countless amount of
software synthesizers and virtual instruments
available. Also on Falcon there's ACE
MIDI, an extraordinary
virtual synthesizer. Does the use
of these instruments appeal
to you?
Tao: Indeed I'd be
interested to listen to my songs replayed by
modern synths and I'm going
to spend some more time on them in the future.
To me the main challenge
would be not to get lost in the endless capabilities
of these synths and concentrate
on the basics. In my opinion, most of the current
conversions of
chip songs are crap. Constructed of typical techno
or dance elements, ignoring
the original spirit of the song. Last
Ninja as a dance version!
I've recently listened to a song, "Delta
on Spanish Guitar", a fantastic example
of a great variation. Creating something similar,
that could be a motivation.
Thomas:
What is your
general opinion about the trend in music that
hardware is increasingly
substituted by software? Hardware synthesizers,
for example, step back and
don't reach high sales rates any more.
Tao: I don't know
much about that, but I think it's mainly simple
reasons like money or space
at home. With a PC it is possible to install
a studio in your living room,
where one usually doesn't have enough space
for the required hardware. In
combination with high quality PC hardware, soft-synths
are regarded as competitive.
Only the interfaces still lack usability.
It seems a bit optimistic to
let people handle controllers with a mouse pointer,
which is initially constructed for
fingers. But the rising market of home users
is obviously not that demanding.
Thomas:
Are you making
other kinds of music than chip music? Are you
using the Atari for
MIDI?
Tao: No. Not yet.
Thomas:
Before you were creating chip music, had you been dealing
with music in some way before?
Tao: Although I have
always had an affection for music, I unfortunately
missed learning to play an instrument
intensively. So now YM2149 is my instrument.
Thomas:
In your group
"Cream" you are active as a musician.
You are developing music for demo productions.
What are the special demands to you as a musician,
when you are composing songs
for a demo?
Tao: First of all
I need to know what's technically possible.
How much CPU time is left for my
player? From the view of a coder preferably
close to none. Depending on
the demo's CPU consumption I'll decide which
effects to use. As much and as
possible, because good music can highly upgrade
a demo. When I'm getting
a preview, I'm trying to express the atmosphere
of the demo in the music,
for example, happy, dark or futuristic. Depending on
the time when I'm getting involved
in the production of a demo, we can synchronise
demo and music. For that
I can offer information about the state of the
song. In case I don't have any information about
the production, I try to
compose a typical demo song and impress alot.
Thomas:
What is the precise
course of a production? Are the other members
coming to you with finished
graphics and animations? Or are you working
at the same time?
Tao: Usually I'm completely
involved in developing our products, or at least
I'm informed about
the current state of our work. Most effects are
created at the same time
and we have meetings to discuss how to combine
and design the effects. Based
on the collected ideas the specialists, coder,
graphic artist or musician continue
their work. Together with our master programmer
I check out the effects
I can use or we plan synchronisation of code
and music.
![[Screen-shot: do things]](images/dothing2.gif)
Thomas:
Which trackers
do you prefer for developing a demo?
Tao: I have coded
my own trackers, so there's no need to use other
ones. I have tested some editors
and some are really good. But to me the sound
chip is the instument.
I can only use its full capabilities when I'm
coding it directly.
I can discover its features and try to find ways
to extend its limitations a
bit. There's a motivation of "getting the
best out of the chip". I can only reach
that aim, when I'm not working under the restrictions
of a tracker, even
of a real good one.
Thomas:
Have you been
composing songs for games?
Tao: At the beginning
of the '90s I converted the songs for Magic
Marble and Lin Wu's
Challenge. Unfortunately the ST version
of Magic Marble has never been distributed,
although it was a real good game conversion.
Thomas:
What do you think
about the current state of the Atari scene?
Tao: Of course it
is not as alive as in its golden days. The periods
between the releases are
longer today, but when coders like Ultra/Cream,
Defjam/Checkpoint or Evl/DHS strike,
then they're setting standards. Demos are nowadays
more complex and better
styled. Most important is the fact that the
scene has kept its kindness.
Error In Line 3 will prove that
for sure.
Thomas:
Did LAN parties
replace the big scene conventions? Do people
prefer to "frag"
anonymously in networks instead of being creative
together?
Tao: I don't think
so. There have always been more gaming home
computer users than sceners. And
if in the days of LAN these people organise
their own parties, the events are
comparably big. But there's also still a living
PC scene having its big
conventions. It's just natural that our Atari
parties
are smaller today,
but they're still of good quality.
Thomas:
You're also a
member of YM Rockerz, a chip-sound band,
which we presented in June
last year. What can we expect next from the
Rockerz?
Tao: The feedback
to Spinning Wheels was surprisingly
large and positive. The idea of installing
a platform for YM chip musicians is fortunately
accepted. In our next demo
we will at least present four new Rockerz. It
looks
like YM chip sound
has another comeback. We hope to be able to
release Popstars in February.
We will also have appearances by the known Rockerz
like 505, Dma-Sc, MC Laser
and Nemo. Friends of YM2149 can prepare for
a nice chip song album.
Thomas:
What kind of
music are you listening to personally?
Tao: Usually classic
rock/pop music like Tori Amos, Van Morrison,
Red Hot Chilli
Peppers. Preferably to music of the '70s. Classic
hard rock from Black Sabbath
or Led Zeppelin as well as progressive rock
from Pink Floyd to Yes, or Frank Zappa. Actually I'm discovering
soul and funk of the early
'70s like Curtis Mayfield or Marvin Gaye. And
in first place I'm listening
to chip music of any system.
Thomas:
Thank you for
this conversation!
Tao: It was also a
pleasure for me...
This interview was originally published in German by
st-computer magazine, February 2003, and is reproduced in English with kind
permission.
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