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About afx_acid

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  1. Thanks for checking and confirming, I forgot to mention in my original post that I was using a 1080p display. I've gone through the settings on both my TV and A/V receiver to make sure that the TV is upscaling the 720p signal from the Sg properly but nothing I can do will correct it. I don't have a 720p display to test this with unfortunately.
  2. Would this still be the cause of the crackling even if I have the ladder effect depth set to 0 though? I'm just trying to work out if this is the correct behaviour of the (simulated) YM2612 chip or something that needs to be looked at further by kevtris. Additionally I've found that if you select 2X Sine as the YM212 waveform you get a whole bunch of constant crackling even when no other sound is playing.
  3. Ok, so I rolled back my firmware to 4.3 and the crackling is still there, not sure how I didn't notice it before. It's especially obvious when listening to music track 12 in the Ghouls 'n Ghosts options menu. So now I'm wondering this is something that is a wider issue with the Mega Sg, or just with my unit? If it's a wider issue, how does it compare to a real YM2612 chip in a genuine Genesis console?
  4. There also appears to be audio issues with the main Genesis core which I'm pretty sure weren't there with the previous firmware version. There seems to be some slight crackling on one or more of the synth channels: If someone could test this and verify I will add it to the Github page.
  5. Is it just me or is there audio crackling since the latest firmware update? Try listening during the intros to Streets of Rage 1 or 2, or on the Ghouls 'n Ghosts title screen, especially just before it fades to the demo. You may need to plug headphones into your TV/AV receiver to hear it properly.
  6. I have my Mega Sg set at 720p with 3x vertical scaling so I don't think the issue is non-integer scaling.
  7. Not sure if this has already been pointed out however there seems to be an issue with hybrid scanlines in 720p mode where the scanlines don't brighten uniformly. Basically the screen seems to be segmented into three horizontal sections of scanlines. If you load up the 240p test suite and display a pure white background, as you increase the scanline depth slider on the Mega Sg, first the scanlines in the centre third of the screen will lighten, then the top third, and finally the bottom third. It's only really visible on white parts of the screen but it's still a bit of an annoyance, especially in games that occasionally have large white sections being displayed on screen. It's kind of hard to see in the below photo due to the moire effect but the issue is definitely there: The settings @720p were: Hybrid scanlines: on Hybrid scanline depth:40 Scanline sub-brightness: 255
  8. They should be able to get much darker at 720p. Try dropping the height to 719 and then adjust the scanline intensity and they will go much darker. That suggests to me that they are broken even at 720p and this seems to be the case for both normal and hybrid scanlines.
  9. Sorry to keep bringing this up but can someone else please test this on their own Mega Sg to see if this appears to be an issue?
  10. This probably got lost in all the jailbreak excitement, but can anybody test the above on their system and confirm if this is an issue?
  11. On the subject of scanlines, i've noticed that in 720p mode at 3x screen height, using the normal non-hybrid scanlines the line darkness/intensity will reach its maximum somewhere on the depth slider between 60-80 and anything more than that doesn't seem to affect them at all. It's only when you go in to the Width & Height settings and change the height to anything less than 720 that the scanlines will darken beyond this at higher depth settings, although by changing the height to a non-integer scale this obviously starts to mess up the scanline spacing a bit.
  12. I'm using the ED X7 but I can confirm: 1. There are three ways to get back to the ED menu - with the Sg reset hotkey (I have this set to Start+A+B+C), by bringing up the Sg menu and selecting 'Run Cartridge' (no need to run Ultracore first) or by using the ED reset function (Down+Start then 'Back to Menu'). 2. Most GG conversions run but seem riddled with glitches. I'm not sure if this is the nature of the conversions 3. I can confirm this is an issue on my Sg. I'm using an 8bitdo M30 2.4g.
  13. That's great, thanks for taking the time to investigate!
  14. I've had a bug on Sonic 1 but I'm not sure if it's an existing game bug or a Mega Sg bug. On Green Hill Act 3, when you pass the loop with the 1UP on top, if you roll into the spring then jump on the rebound at the spot where the hill starts to decline you glitch out the loop as you hit it. I've uploaded a video showing this at the link below: https://gfycat.com/coolmediumfinch I'm running the game on a Mega Everdrive X7 but unfortunately I don't have an OG Genesis to confirm if the issue is just with the Mega Sg.
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