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Analogue BeeperThere's been a discussion on foro.speccy.org about multichannel beeper stuff, and since I had the camera out and the scope set up, I set about demons…
... to make up a lower frequency wave. The technique is called ... waves are of a similar frequency.
First, the output ... -
New Spectrum Computer DevelopmentHey does anyone know of any decent new Spectrum clones being developed? I find it amazing how Zilog still produce a Z80 backwards compatible chip (an…
... chip at the same core frequency. Available at up to 50MHz ... -
+2 datacorder noise eliminationHello :-) I have recently bought a gray +2, and as expected, it is plagued with the "datacorder noise in sound output" problem. I have found a few …
... and making the UHF output frequency drift??, etc?? I don't ... -
?8912 or 8912A?Hi! I've just changed a defective AY-3-8912A in a +3. Tried a spare 8912 from my "Vectrex spare box", and seemed to work ok: from +3 BASIC I played a…
... read that the maximum clock frequency is 2 MHz. I don ... not supposed that the clock frequency for the AY chip is ... -
Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…
... glitches, specially if your display frequency is different from 60 Hz ... -
Audio Output Filtering in EmulatorsI am messing around with various beeper-related code at the moment and have a question related to the audio output from emulators... I've written s…
... with loads of unwanted high-frequency scratchy harmonics. In fact, it ... -
Xpectroid Android ZX Spectrum emulator is out.You can download Xpectroid 1.0 free from Android Market Place. [url]http://www.androlib.com/android.application.com-seleuco-xpectrum-BtDq.aspx[/url]…
... support. Sound rate from 11025 KHz to 44100Khz.
- Image smoothing ... -
Noise channels on AY-3-8912?I'm trying to reproduce a tune that's a jazzed-up version of classical music - i.e. there are drum beats all over the place, to try and mask the low …
... channel, and take the channel frequency - a cymbal has a higher ... noise frequency than a drum. Register 6 ... to try matching the drum frequency to an existing tone (musical ... -
TV tuning problemI've just discovered that I can't tune in any of my Spectrums on my new TV. (Well, "new" in the sense that it's an old one I was given to replace an …
... channel search picks the "best" frequency; using manual fine tuning just ... -
Turn on?Heya, I just got a ZX Spectrum+, but I have no idea how to turn it on >.> The instruction booklet only says how to program stuff, not how to get the…
... work. Also, is there any frequency in particular at which it ... -
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... solution: Another oscillator of the frequency you want, that's ... imagine the VCO has a frequency slightly higher than 8MHz. ... by the oscilloscope probe). The frequency setting capacitor for the 74LS629 ... low pass filter and the frequency setting capacitor to set ... -
Arkos TrackerHi all, I'm proud to present you my Windows-based Tracker : Arkos Tracker, for you to compose for Spectrum, CPC and MSX. It requires .NET 3.5 at lea…
... modified while creating instruments.
- Frequency replay of 13, 25, 50 ... -
Spectrum On LCDHi everyone, I cant do the composite mod on the 16 K speccy, tried it and the video is messed up. i have an LCD with analoge input so i can connect …
Octode - new eight channel beeper music engineYes, another one. This engine provides eight channels of tone, without volume or decays, and with small pauses between rows, so it is Wham-like. It a…
... -7, it uses 8-bit frequency dividers, so usual detuning issues ...Can anyone try this file ?I need to run an old DOS file, but I cannot make it work. I get a runtime error no matter what PC I try, but I don't have any older machines than a P…
... a utility to change the frequency-table in a ROM-image ...Brief report about RetroEncounterAnother April... another retro event! (Firstly sorry for the quality of the photos, owing to not being able to find my camera battery before leaving …
... to turn the CPU clock frequency up and down, all the ...MISTER BEEP - new album with ZX musicHi, normally I don't like my tunes too much :) but this time I would like to proudly present to ZX universum: MISTER BEEP - "A thousand furious b…
... E5x. It changes the notes' frequency and can be used for ...80s chart dance mixesPart 3 to come some time when I get the chance to record it. I've been planning these for 18 months and almost given up, but having put all the recor…
... Make Me Wait (12" / Maximum Frequency Mix)
09 Double Trouble ...Help needed locating a software driver...Help needed locating a software driver... I'm looking for a driver for Windows xp for my wifi usb adapter. Being clumsy, I've lost the disc when I m…
... , IEEE 802.11g
Frequency Band:2.412GHz ~ 2.484GHz ... /> IEEE 802.11g : OFDM (Orthogonal Frequency Division Multiplexing)
Modulation ...ARM no thank youI am getting sick of all these ARM powered devices, the latest being that Atari Flashback 3. They are more or less the same crap. Everything is just …
... even output true RGB 15 kHz, all running on composite!!!
kHz...tvwhats the frequency of a uk zx 48 i cant seem to get it to work on my tv i know its power up as it has that old electronics smell and apart from th…
whats the frequency of a uk zx 48 i cant seem to get it to work on my tv i know its power up as it has that old electronics smell and apart from the smell is there another way to know its onJSpeccy v0.89 Christmas 2011 EditionHi, After seven months of hard work, tonight I've released a new JSpeccy version as my humble Christmas gift for all the community. As my webpage i…
... DRB blocks at 44.1 Khz or CSW Z-RLE blocks ... at 48 Khz)
[*]New POKE dialog
+3 faultIve just been and dug my +3 ouf from the loft and plugged it in to be greeted by the menu and loader screen and a hum almost buzz at a low frequency …
New Game: Endless Forms Most Beautiful[IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loader.gif[/IMG][IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/ingame.gif[…
... />
Bombs appear with increasing frequency further into the game. Get ...A 30th Anniversary ProjectHappy new year (belatedly...) So with the 30th anniversary approaching, I've decided to do a hardware project to celebrate it. Something hands-on (o…
... changes, thus changing the frequency of the oscillator. The ... femtofarads) and the associated frequency change is also minuscule. ... However, the difference in frequency between the two oscillators can ... VCO which generates the final frequency, the VCO is built ...Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…
... blocks flashing at the same frequency as the buzzing comes out ...AY-interface for ZX81 (at last ;) )Hi, it exists finally ;) - compatible with the most standard one - ZonX. [url]http://www.sellmyretro.com/offer/details/Brand_New_Sinclair_ZX81_MrX_A…
... allows you to set the frequency, volume and mixing (tone and ...Help needed with a loop counterVariable W counts to 12 then calls a subroutine to move a character, it then resets to zero and starts again. For every 2 moves of that character I …
... to call another routine the frequency based on the current level ...How Sinclair computer interprets audio and loads codeHello, First time posting here, so sorry if the question is already answered or is unanswerable. I am trying to find some info about how sinclair …
... a sinewave, where a certain frequency value (in time) represents a ... also sine waves, and the frequency content of the rest of ...
