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2023-02-26
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Readers Comments
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When you talk about machines someone
gets angry, my comments in the last
editorial were my own recollections
of the machines, I never owned a
Spectrum as I took preference with
the Commodore 64 here is what one
reader said about my comments
- - - - - - - - - - - - - - - - - - -
I'm a fan of Commodore machines.
But infos in your magazine are pile
of shit.
ZX Spectrum 48K (and later models)
was the only machine in 80s with
audio-out on regular 'jack'. C64 had
nothing (most pitiful) - and also
Atari XE. Internal speaker was only
for persons poor enough to NOT to
have an amplifier and hi-fi setup.
I think you're too old for flame-wars
of platforms. Write truth or do NOT
write anything.
Jasio
COMMODORE FREE
Jasio
Many thanks for your Comments, this
is however a Commodore magazine so
some bias towards Commodore will be
inevitable I presume Spectrum based
magazines are bias towards spectrum
machines, I was often taunted at
school with the my machine is better
than yours, this wasn't the intention
of the Editorial, Personally I do
prefer the SID sound
BTW - I found a site:
http://z80.i-demo.pl/music.html
MP3 files from that what you call
"small internal speaker", which is
funny for readers who know other
platforms.
These tracks (from 3 channels to 8
channels) are incredible
http://z80.i-demo.pl/Tim_Follin-
Chronos_a_Tapestry_of_Time.mp3
http://z80.i-demo.pl/David_Whittaker-
Savage3.mp3
http://z80.i-demo.pl/Ben_Daglish-
Super_Sports_A.mp3
http://z80.i-demo.pl/Cobra-
Magic_Showmp3
http://8bitcollective.com/items/music
/MISTER_BEEP-A_crazy_boy_is_
jumping_2.mp3
http://z80.i-demo.pl/Kriss-
Love_Rave.mp3
http://z80.i-demo.pl/Prodigy_Game.mp3
http://8bitcollective.com/items/
music/Mister_Beep-Logos_Part_
1_(Tangerine_Dream).mp3
and others... Other 8-bitters are far
far below.
Jasio
Commodore Free
Jasio well personally I prefer the
sound of the Commodore Sid chip. What
do other readers think? this is a
Commodore magazine some Bias towards
Commodore is inevitable, I do know
some readers are multi platform and
every platform had its strengths' and
weakness, but this isn't a mine is
better than yours taunt towards any
machine.
I did find this information
http://www.nvg.ntnu.no/sinclair/
computers/zxspectrum/spec_
specifications.htm
Firmware:
3.54 MHz Zilog Z80A CPU 16K / 48K
RAM (later 128K RAM)
Display:
32 x 22 character text display
256 x192 pixel resolution 8 colours
Sound:
1 channel, 5 octave (16/48K
Spectrums) 3 channel, 7 octaves
(128K Spectrums)
I/O:
Z80 bus, tape, RF television (All
Spectrums) External numeric keypad
(Spectrum 128) RS232 - Midi Out,
RGB, Joystick (Spectrum 128, +2,
+2A, +3)
Storage:
Built-in tape recorder (Spectrum +2
+2A) Build-in 3" disk drive
(Spectrum +3)
From Winkipedia
http://en.wikipedia.org/wiki/ZX_
Spectrum_%2B2
about the spectrum 2
"Sound output is through a beeper on
the machine itself. This is capable
of producing one channel with 10
octaves. The machine also includes an
expansion bus edge connector and
audio in/out ports for the connection
of a cassette recorder for loading
and saving programs and data."
And from Winkipedia about the
Commodore 64
http://en.wikipedia.org/wiki/
Commodore_64
Sound: MOS Technology 6581/8580 SID
* 3-channel synthesizer with
programmable ADSR envelope
* 8 octaves
* 4 waveforms: triangle, sawtooth,
variable pulse, noise
* Oscillator synchronization, ring
modulation
* Programmable filter: high pass, low
pass, band pass, notch filter
Features
* three separately programmable
independent audio oscillators (8
octave range, approximately
16 - 4000 Hz)
* four different waveforms per audio
oscillator (sawtooth, triangle,
pulse, noise)
* one multi mode filter featuring
low-pass, high-pass and band-pass
outputs with 6 dB/oct (bandpass) or
12 dB/octave (lowpass/highpass)
rolloff. The different filter-modes
are sometimes combined to produce
additional timbres, for instance a
notch-reject filter.
* three attack/decay/sustain/release
(ADSR) volume controls,one for each
audio oscillator.
* three ring modulators.
* oscillator sync for each audio
oscillator.
* two 8-bit A/D converters (typically
used for game control paddles, but
later also used for a mouse)
* external audio input (for sound
mixing withexternal signal sources)
* random number/modulation generator
COMMODORE FREE
The Commodore 64 has an Av output for
picture and sound it's a round Din
Connector on the back of the machine
although you need a cable its
possible to output sound to a hifi or
tape deck (how many recorded SID
tunes) and the picture to a monitor
instead of a TV for a superior
picture, but you knew that already
People always have a favorite
machine, maybe they grew up with one
and so it remains a favorite, I am
not claiming the Commodore 64 is
perfect it like every other machine
manufactured has strengths and
weaknesses, The filters are what
makes the sid special (in my opinion)
and as far as I know the Spectrum
doesn't have this as a feature on the
machine, as this is a Commodore
magazine I think it better I just
refer to Commodore machines rather
than create a Mine is better than
yours hole to dig myself into.
Sid Music can be found here
http://www.6581-8580.com/
Stone Oakvalley's Authentic SID
Collection (SOASC=) compare these
with the Spectrum, which sounds
better?
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