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The Cost of a Raspberry Pi These Days.I remember a couple of years ago being able to buy a Raspberry Pi for just under $40 (£34) in many places Amazon being one of them. I had a look a…
... above head height. It made no sound at all and was making ... -
Voyage Into the UnknownThis was an early release from Mastertronic in their 1999 range, supposedly a graphic adventure...but I never could get anywhere with it. Was it real…
... - just a black screen with no sound or feedback to it - gave ... -
The Cost of a Raspberry Pi These Days.I remember a couple of years ago being able to buy a Raspberry Pi for just under $40 (£34) in many places Amazon being one of them. I had a look a…
... above head height. It made no sound at all and was making ... -
Anyone else having issues with Zoom audio on laptop speakers?Microphone works and microphone test also works. Laptop speakers replay the microphone test. However, the speaker test is completely silent. Already …
... Zoom sound settings, including advanced ones, made no difference. Changing Windows sound ... a Microsoft driver issue (sound driver installed, but no sound anywhere), which was ... resolved by installing a modded Realtek sound ... -
sound input causing dead ula in +2 ?I have a dead +2a (it shows static black screen, no border see: [url="http://www.worldofspectrum.org/forums/viewtopic.php?topic=9619&forum=4)"]http:/…
... shows static black screen, no border see: [url="http ... no, screen is still black, it makes sense that ula ... possible that sound input can damage the ula which ... I have soldered external sound input to all three my ... from my sound input socket when the ula went dead ... -
Speccy 48K Sound EffectsHow did programmers of old get the more digitisy sounds out of the spectrum, specifically the 48K machine so no Yamaha sound chip to play with. They …
... spectrum, specifically the 48K machine so no Yamaha sound chip to play with ... the beep command. Take the 48K music for treasure island dizzy ... rapidly getting a square wave sound. Is this possible with BASIC ... -
ZX +2 Grey with quiet ULA soundHi all. I come here for advice before messing up with the main boards and end up killing them for good. I got this grey ZX +2 with a very low ULA a…
... with a very low ULA audio. The ULA sound is low to almost ... the AY sound. AY sound is fine.
The ULA was checked ... ?
I have no oscilloscope... :(
(Forgive if ... -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... purpose interface for the 16K/48K ZX Spectrum, with the primary ... 128K Spectrum. The Spectrum?s sound is also directed through the ... SCART cable. There is no need for non-standard modifications ... not implement support for the ULA+ specification and it is not ... -
Yet another glitchy graphics 48kHeyo, I'm new both to the forums (sorry if this is the wrong forum) and to Spectra I'm afraid, picked up a 48k from a steam fair sale thingy (not th…
... afraid, picked up a 48k from a steam fair sale ... border's OK though. No beeper or keyboard response, ... coming in through the RF sound (that's probably fine ... getting hot except the ULA and to a slight ... try replacing the (socketed) ULA, is this correct (given ... -
Another way to add audio input on a +2 - No more low level sound problem !Hi all, Last week, with 3 friends, we participated to a modelism / games / hobbies meeting, and we made a retro computing stand... (big succes, I'll…
... original tape amplifier, and the sound is always at the good ... at an higher level, the sound stays at the same volume ... ) that proceeding that way, the ULA is protected.
The Speccy ... it works flawlessly, no more low level sound problems, mp3 are perfectly ... -
Issue 3 ULA ProblemsI've been given an Issue 3 48k to fix. It was producing no video and no picture on the TV. The coil was buzzing so it was getting power and all the v…
... Issue 3 48k to fix. It was producing no video and no picture ... problem might be with the ULA.
Sure enough, ... time everything works. All keys, sound and program loading works. Memory ... the wrong tree with the ULA because when dropping the partially ... -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had ... PAL norm and there are no pulses or
b) ... book "The ZX Spectrum ULA: How to design a ... /> Patrick
My ULA Y output:
[img]https ... ://i.postimg.cc/HxDsHvPC/ULA-Y.jpg[/img]
... -
SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... />
Fixed joysticks detection - no longer warns you that there ... br /> Fixed Snapshot saving in 48k mode (SP pointer bug), ... - sounds better now, especially AY Sound.
Added MRU ... and drop support.
Added ULA Snow effect, and Floating bus ... -
16k/48k Sound FXI am now moving on from graphiocs to trying to build up a library of sound fx to be used with a 16k/48k Spectrum. Does anyone have any example m/cod…
I am now moving on from graphiocs to trying to build up a library of sound fx to be used with a 16k/48k Spectrum.
Does anyone have any example m/code on producing certain fx (Explosion, siren etc).
Many thanks -
Programming Sound EffectsHi guys, Have decided, probably due in some way to my midlife crisis, to tart up and re-release (or even just re-lease) the old 48K Speccy games I w…
... re-lease) the old 48K Speccy games I wrote ... never very good at sound. I can get corny ... but getting things to sound like explosions, laser zaps, ... theory' behind getting sound effects to actually sound like anything? Even ... search for (I'm no good on this Internet ... -
Yellow tint and buzzy sound problemI recently bought a 48k and when i plug it in i get the sinclair 1982 screen no problem but it has an odd nicotine stained tint and the sound is just…
I recently bought a 48k and when i plug it ... get the sinclair 1982 screen no problem but it has an ... nicotine stained tint and the sound is just a kind of ... -
New Spectrum emulator for DS[url]http://zxds.raxoft.cz/[/url] [quote]Features already implemented: * Solid Z80 core - possible bugs aside, the Z80 emulation is as complete…
... screen support.
* Reasonable 48k/128k snapshot support - It ... soon:
* 48k/128k Z80 snapshot support - the ... no emulator is complete without save support.
* 48k and 128k sound ... lines at the times the ULA would read them. It ... -
Spectrum 48k SeettingGot an issue 2 speccy on the bench that had a poorly ula, changed that, also changed tr4 and tr5 (had no oscillator) now it just resets over and over…
... poorly ula, changed that, also changed tr4 and tr5 (had no oscillator ... across the z80 and its no different altho i get same ... : oops title should say Spectrum 48k Resetting. -
Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... russian clone of ZX-Spectrum 48k
[URL="http://sblive ... , build with simple logical compoments! no ULA chip needed ! -
48K vs 128KWhat does everyne think is the best machine - the 48k or the 128k? Personally i prefer the 128K+2. It has more memory, built in tape deck (so no fid…
... is the best machine - the 48k or the 128k?
Personally ... , built in tape deck (so no fiddling with volume levels and ... ), a decent keyboard and better sound.
Still having said that ... 's nothing wrong with the 48k, (compact design and very accessible ... -
48k sound better than 128kI've just played Cabal 128k. The AY sound in this game is awful - beeper sound in 48k version is much better. Are there other games with two separate…
I've just played Cabal 128k. The AY sound in this game is awful - beeper sound in 48k version is much better. Are there other games with two separate (48 & 128 ) versions and the 48k one being much better in the sound department? -
ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…
... Why? Because there is no need to. CPU is ... .
In Zx Spectrum 48k the uncontended memory is refreshed ... reading from it by ULA. The address while bytefetch ... 's why there are no any additional refresh cycles ... (or there is no need to be).
... -
No colourHi! I'm trying to fix a 6A 48K machine that outputs no colour and shows the characters as if they were in bold. So far, I've done a couple of thing…
... to fix a 6A 48K machine that outputs no colour and shows ... of things:
Changed ula with a known working one ... video before the modulator - Still no colour
Changed ... sides.
Although having no colour and boldish characters the ... -
A good site with Z80 ZX Spectrum 48K tunesI found this good site; [url]http://z80.e-demo.pl/[/url] ; I listened to a few tunes yet, and I am [B]AMAZED![/B][B]To me it sounds WAY BETTER THAN A…
... such sound!Why is written everywhere on the net that 48K Spectrum ... has very poor sound while it can ... and ULA for beeper and so enable quality sound for the 48K without ... there were two Z80 and ULA chips that would provide stereo sound. -
Spectrum +2 sound problemsI recently bought an RGB Scart cable for my grey Spectrum +2 - it has a mono 3.5 jack that goes into the sound output and a DIN plug for the RGB pict…
... jack that goes into the sound output and a DIN plug ... />
The tape loading sound and 48K beep effects are fine but ... the poorer picture, I have no such trouble through the normal ... -
R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…
Recently one of my 48k rubber key (issue 4) ... 'beep' and a 'buzz' sound (just a short one at ... /> The ULA gets very hot.
This 48k was completely ... back (maybe 3) with new ULA ferranti #7, all new ... some custom fit heatsinks for ULA, Z80, etc...
... -
ULA gets so hot, it is cracked open!Hi everyone. I have bought a rubber-keyed 48K and the seller said he was selling it as "for spares/repair." Sure enough, it turns out it doesn't work…
... bought a rubber-keyed 48K and the seller said ... it apart suspecting the ULA was dead. It turned ... immediately noticed that the ULA had a crack in ... feeling that replacing the ULA wouldn't fix the ... board shows no sign of damage. No heat damage, no other visibly ... -
Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
I have a Spectrum 48k (I believe it may be ... and there seem to be no problems electrically, it just looks ... the socketed chips (except the ULA, CPU and ROM since they ... -
"8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…
... MUSIC-COLLECTION FOR ZX SPECTRUM 48K.
PRESS 1- ... channel of sound and a square wave only (also - no volumes). ... of ZX SPECTRUM (jack) through ULA chip.
ZX ... [url]http://parishq.net/proposed/sound/mister_beep-a_crazy_boy_is_jumping.mp3[/url]
ZX 48K issue 4a with ULA 5?I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later. Micky
I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later.
Micky
