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  • No answer after 24 hours so, this will be also my last response on the matter because I'm over 50 years old and I have better things to do with my own life. Again, the guy just want to be "right" but he doesn't show any hard evidence of anything, anyway, this is the last you will hear from me. To understand how QSound works people need to have some knowledge about matrix encoding/decoding and psychoacoustics, thanks to ValleyBell and superctr work, now QSound is a reality for those without a ori…

  • Quote from donluca: “@wuemura according to your own researches, they *are* wrong (EDIT: to better clarify, "they" is referred to ValleyBell and superctr), because as you can clearly read in ValleyBell's information, the phase shifting is done *in software* and not on an outside board and, again, as stated in the quote I made above, the QSound chip does actually that, it *decodes* the audio and the result, as once again stated, is a simple stereo track which just needs to be played back. ” Where …

  • @donluca They are working with the information they have available and by the way, they are not wrong, this is exactly what the DSP16A does as I have already described earlier, also, the technology of the time didn't allow QSound to be processed (decoded) in real time and therefore the need for an extra hardware to make it work the way Capcom intended. Only after ValleyBell and superctr finish their work I was able to decode QSound information hidden inside the Stereo output from MAME. And for t…

  • Angry? Because I use bold letters? Hummm.. Why would I waste my time with MAME team? Let me tell you a history, the engineer responsible for many of the Yamaha FM sound engine join mame dev without telling anyone who he was and contribute with some code, what MAME team do? Scrap all his work because of ego, a bunch of kids telling the guy who created the Yamaha sound chips is wrong. In relation with QSound and MAME: mame-higher-standars-qsound.png Qsound-superctr.png github.com/mamedev/mame/pull…

  • Quote from donluca: “And you're still failing at understanding the fundamental difference between a resistive load and a reactive one and how you can't just apply an R-C filter to obtain a phase shift when you have a resistive load. Since I'm talking to, as you stated yourself, an "hardware developer" (which means absolutely nothing unless you're more specific, you could be someone who designed washing machines, telescopes, or boats, but whatever), I'm taking for granted you know how passive net…

  • Quote from donluca: “@wuemura I'm wondering if I'm getting trolled or if you're serious.” I ask myself the exact same thing. Quote from donluca: “For once, since we're having a civil discussion, I'll give you the benefit of doubt and believe that you actually know what you're talking about but I need to point out that the first circuit you've shared could work only if we're having a reactive load on one end which this is not the case as speakers are resistive loads. This means that if you actual…

  • Quote from rewrite: “Quote from wuemura: “That are the rules for QSound, if you don't want it, don't use it, simple as that. Standard cabinets can't be used for QSound unless you apply some changes, there is no other way around it. ” We're arguing the same point here, I think. Reality is putting a Q-Sound amp in non-Qsound cabs is a silly endeavor. ” True, but you know users right.

  • That are the rules for QSound, if you don't want it, don't use it, simple as that. Standard cabinets can't be used for QSound unless you apply some changes, there is no other way around it.

  • Quote from rewrite: “Quote from wuemura: “You don't need to run this on the original cab to proper hear the effects, all you need beside the Capcom amp, is to have a pair of aligned speakers facing you at your ears level. ” Sure, except most other cabs don't have this, so people putting them /in/ cabs aren't really gaining anything. That was my point. For those who want to run it outside of a cab, sure. ” If they want QSound effect on standard cabinets, all they have to do is to place speakers o…

  • Quote from hardyhell: “So an new astro City will not be able to benefit of the Q Sound because the speakers are not alligned that way as in the Capcom cab? i have a nvs 4000 in use with the cps2 and 3 and planning to get These amps running in my cab. but now i am not sure if it is any use. or Change in Quality. one think i can tell though that the "impress" Version of this amp which can be powered with jamma power was not use. total bad humming. returned it back then to the seller. ” It depends …

  • Quote from rewrite: “Quote from wuemura: “The final words on this it's simple, to experience Capcom QSound you need that Capcom amplifier, end of story. ” And properly aligned speakers, which most people running these not in original cabs don't have which defeats the entire purpose. ” You don't need to run this on the original cab to proper hear the effects, all you need beside the Capcom amp, is to have a pair of aligned speakers facing you at your ears level. Again, take the Ryu stage sample: …

  • Quote from donluca: “Quote from Jdurg: “Just curious, but what are your qualifications for stating this? ” I could tell you I've worked with audio for years and seen and repaired countless DACs, ADCs, pre-amplifiers and power amps, and that would be as good as saying I was an ex-Capcom employer, but honestly I couldn't give a flying fuck about it, so just take a look at the board and see it for yourself: arcade-projects.com/forums/ind…p/&postID=17063#post17063 (thanks to @acblunden2 for the pic)…

  • This guy know his stuff!!! Source: Giant Bomb Quote from Giant Bomb: “Note that music done by video game hardwares sound chip in real time cannot be mixed in QSound without dedicated hardware or software and cpu power to process the sound in real time. ” True! Quote from Giant Bomb: “Some Capcom Arcade Machine feature analog DSP Matrix_decoders these work much like Dolby Pro logic Matrix_decoders The left and right Analog sound channels from the Stereo feed from the CPS1 and CPS2 arcade boards a…

  • Quote from ZERO_MILES: “Quote from wuemura: “From what I understand, QSound is programmed inside the ROM, then QSound information is sent to QSound chip to put everything together and what makes the magic happens is the QSound power amp (don't know if there is a cross-over near the original speakers). ” I recently had the chance to examine a complete QSound kit a friend ordered from Japan, and it had no crossover near the speakers. The kit came with original speakers, and it had a filter cap on …

  • Quote from l_oliveira: “The DSP on the CPS1Q and CPS2 actually does Q-SOUND processing but it generates a normal stereo signal which need further analog processing (the mathematical algorithm on the DSP takes the presence of the mixing circuit in consideration I suppose) so the game can control the position of the audio for the listener. There's a very complex API on the games for said effects, early games like "The Punisher" exposes it on the sound test menu. Because of the amount of data that …

  • Quote from SmokeMonster: “This is extremely interesting, and I think this is the first time I've seen all of this discussed. So, what happens if you just send a regular stereo audio signal through the Q-Sound amp? I planned to turn one into a stand-alone amplifier for all of my arcade gaming, but maybe that's not ideal if it's going to apply Q-Sound filtering to the source. ” Nothing special,without the QSound encoding/matrix/mix it will output as a standard stereo sound. Maybe you could get som…

  • I don't think so @ZERO_MILES, my technology does something very different, for example, it can locate a instrument/voice/effect/etc underneath other sound and bring that instrument forward and send everything else back or acting as a healing tool like the one used in photoshop to erase voice narration of some source but still bring and back vocals forward. Here some real time demonstrations, notice how in the first video is possible to recover a violin sound underneath the music: youtube.com/wat…

  • Quote from tiff_lee: “hhmm only a page back @Frank_fjs mentioned that the decoding is done on the CPS2 hardware itself? Looking at an image of one of these amps there appears to be nothing custom or unique on them just some NEC opamps? if those are the key to 'decoding' the audio could you not make a standalone decoder board with those and pass line level audio through that to any old stereo amp? ” The secret is hidden in plain site, only a hand full knows about it, me included CPS2 hardware has…

  • Quote from nem: “Interesting, thanks. I guess I'll just have to find myself a QSound amp then! ” Yes please, give us some feedback if you do.

  • Quote from l_oliveira: “SuperCTR and ValleyBell are the heroes of sound emulation. I see them often on the IRC and have plenty of pleasant conversations with them about sound stuff. SuperCTR is also the local specialist on NAMCO sound engines and music hardware. Thanks for pointing out the road for the proper sound on this systems. ” Yes they are SUPER heroes, true masters on what they do! Both of them are very decent and friendly people. Quote from nem: “Quote from wuemura: “It is not "just" an…