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Search Again :: Adv Search 276 results in 0.000s
<1…45678910>
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…

    ... >3 V of any waveform:

    [URL="http://www ...
    Knik Knik August 2012 Hardware
  • BEEP / PLAY equivalentI'm so tired I can't even think of a proper title for this. Has anyone seen a table showing a comparison between BEEP notes durations and equivalent …

    ... to play a natural speech waveform in BASIC by doing a ... single second would generate a waveform that might be a rough ... introduction for me into sound/waveform processing I might be interested ...
    brownb2 brownb2 September 2012 Sinclair Basic
  • BEEP / PLAY equivalentI'm so tired I can't even think of a proper title for this. Has anyone seen a table showing a comparison between BEEP notes durations and equivalent …

    ... introduction for me into sound/waveform processing I might be interested ...
    mcleod_ideafix mcleod_ideafix September 2012 Sinclair Basic
  • BEEP / PLAY equivalentI'm so tired I can't even think of a proper title for this. Has anyone seen a table showing a comparison between BEEP notes durations and equivalent …

    ... was done using brute force waveform (PC) quantisation to ZX AY ...
    LCD LCD September 2012 Sinclair Basic
  • BEEP / PLAY equivalentI'm so tired I can't even think of a proper title for this. Has anyone seen a table showing a comparison between BEEP notes durations and equivalent …

    ... that if I divided a waveform into a large number of ...
    brownb2 brownb2 September 2012 Sinclair Basic
  • Advice about Logic AnalyzerHello to everybody! First, I hope this message is posted in the appropriate board. During my more or less successful career at fixing ZXes, I alway…

    ... to trigger and store a waveform is immensely useful.
    Winston Winston October 2012 Hardware
  • Tape loading from PCSo, I found that I had been using the wrong audio jack socket on my 48k for tape loading (my spectrum is in a third party case, so there are not labe…

    its also possible your soundcard is inverting the waveform
    djgarf djgarf October 2012 Hardware
  • Tape loading from PCSo, I found that I had been using the wrong audio jack socket on my 48k for tape loading (my spectrum is in a third party case, so there are not labe…

    [QUOTE=djgarf;657308]its also possible your soundcard is inverting the waveform[/QUOTE]

    That alone would not cause any problem.
    Zorn Zorn October 2012 Hardware
  • Tape loading from PCSo, I found that I had been using the wrong audio jack socket on my 48k for tape loading (my spectrum is in a third party case, so there are not labe…

    [QUOTE=djgarf;657308]its also possible your soundcard is inverting the waveform[/QUOTE]

    I had this problem with SiS 6326 and SiS 530 chipsets. The waveform was inverted, started negative.
    pkersey pkersey October 2012 Hardware
  • Tape loading from PCSo, I found that I had been using the wrong audio jack socket on my 48k for tape loading (my spectrum is in a third party case, so there are not labe…

    ... and SiS 530 chipsets. The waveform was inverted, started negative.[/QUOTE ...
    ingo ingo October 2012 Hardware
  • Tape loading from PCSo, I found that I had been using the wrong audio jack socket on my 48k for tape loading (my spectrum is in a third party case, so there are not labe…

    ... that these chips reverse the waveform. They're Old chipsets though ...
    pkersey pkersey October 2012 Hardware
  • [Update] Lone Wolf - The Mirror of Death - AudiogenicHi folks, I know we already have a TZX of this, but I can't help feeling that it needs it's blocks deconstructed into Pilot/Sync/Date blocks/pulses …

    ... the idea was for a waveform point of view ?

    Andrew Barker Andrew Barker December 2012 MIA/STP/SDP
  • K7ZX - Best encoding?Is there a "best" or most reliable encoding scheme in K7ZX (can't use Otla - won't let me save as an SBB)? The ones I've used are Milks and FSK, alth…

    Tried every possible waveform, solution, included all blocks - still ...
    Swevicus Swevicus February 2013 Sinclair Miscellaneous
  • Found a bunch of Danish MIA tapesI recently got a lot of Danish ZX Spectrum tapes, most of them are MIA. I have tried for a couple of hours to create a TZX file from one of them. Wit…

    ... to manually (by checking the waveform) assume several uncertain bits. Fortunately ...
    DaRkHoRaCe DaRkHoRaCe February 2013 MIA/STP/SDP
  • Why do most games only load on one side?In my experience, most cassette games only load on one side and fail on the other. Not just on the Speccy, but on any tape based system I've owned. …

    Professional tape copiers copy two sides of the tape at the same time, so one of them is recorded in reverse order while playback is normal. The waveform is a bit different.
    I have the same problem when making copies with a Telex tape duplicator.
    Gott Gott March 2013 Sinclair Miscellaneous
  • Speccy PSUI've grabbed a Speccy PSU from fleabay and it looks like a Speccy Plus PSU. After testing it with a multimeter it's kicking out 12V rather than the …

    ... see the change in the waveform when current is drawn from ...
    Pierre Pierre March 2013 Hardware
  • Sound programs that use +3DOS/AssemblerHi I am working on my final JSWed project and have nearly finished but i am considering changing the standard in game tune you get,the editor instruc…

    ... C.
    0F9h 1 Set waveform effect (like 'W' in a ... command)
    0FAh 1 Set waveform period (like 'X' in a ...
    jammajup jammajup April 2013 Development
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... has failed short circuit, the waveform of the output inductor coil ...
    Zorn Zorn April 2013 Hardware
  • Issue 4S AnnoyanceRecently ive been going through a few interfaces testing them and I stupidly inserted a "key-less" interface (didnt know at the time but should have …

    ... /> There is normally a sawtooth waveform at TR5's collector (actually ... , I seem to recall the waveform is rather different in the ...
    Zorn Zorn May 2013 Hardware
  • CapacitorsSorry, another question... I've done a bit of looking around, although after a couple of beers this may not have been as systematic as usual, but I …

    ... on the right shows the waveform as measured on the + and ... diode bridge rectifier. The red waveform is when there is no ... the bridge rectifier. The blue waveform is when there is a ...
    Pierre Pierre May 2013 Hardware
  • Issue 3 board... How to resurrect?Dear Everyone, Now I have a working 48k Issue 3, a sort of working Speccy+ (still having problems with the keyboard, more of that in another post) a…

    ... easily test for a ripple waveform on the supply lines without ...
    Pierre Pierre May 2013 Hardware
  • +2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…

    ... show you what the actual waveform is like :smile:

    1024MAK 1024MAK May 2013 Hardware
  • Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…

    ... out the ROM as a waveform. Or, as a simpler solution ...
    utz utz May 2013 Development
  • Is This PSU Useable on the Speccy?I just got my Speccy and the PSU has had some 'work' done to it. Somebody has added an extra length of cable on it but rather than soldering or crim…

    ... a scope to measure the waveform.

    It seems from ...
    Pierre Pierre May 2013 Hardware
  • Is This PSU Useable on the Speccy?I just got my Speccy and the PSU has had some 'work' done to it. Somebody has added an extra length of cable on it but rather than soldering or crim…

    ... straight DC line, but a waveform where the capacitor will discharge ... tread that shows the voltage waveform over the capacitor under load ...
    Pierre Pierre May 2013 Hardware
  • New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…

    ... changed the shape of the waveform, or may be causing other ...
    Winston Winston June 2013 Hardware
  • Using downloaded WOS filesI am the new owner of a 48K Spectrum, which loads games from tape without any problems. I am not having great success with games downloaded from the…

    ... and is "rounding" off the waveform - some sort of soft clipping ...
    DEATH DEATH July 2013 Hardware
  • Using downloaded WOS filesI am the new owner of a 48K Spectrum, which loads games from tape without any problems. I am not having great success with games downloaded from the…

    ... pure square wave and the waveform will have sinusoidal characteristics. At ... a 6V peak to peak waveform. As the other members already ...
    Pierre Pierre July 2013 Hardware
  • Using downloaded WOS filesI am the new owner of a 48K Spectrum, which loads games from tape without any problems. I am not having great success with games downloaded from the…

    ... output has a much cleaner waveform than the original laptop 2 ...
    Trevi Trevi July 2013 Hardware
  • Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …

    ... to look at the input waveform of the supply into the ...
    Pierre Pierre July 2013 Hardware
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