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AWJ Reged: 03/08/05 Posts: 936 Loc: Ottawa, Ontario Send PM Re: How to change refresh rate in MAME drivers? 01/27/11 01:15 AM Reply > > Nice to see your sync measuring device is working perfectly, caius! > > > > Andrew > > Yes, with the help of Guru (yes, always him) I solved my trouble.It was needed to use > a low-pass filter (I built one with a cut-off frequency of 72.4 Hz.Now the readings > are very stable and precise! Is your device fast enough to measure horizontal sync as well? Knowing the exact vertical frequency of a board is nice, but even better is knowing the number of scanlines in a frame and the VBlank duration.

Entire thread Subject Posted by Posted on How to change refresh rate in MAME drivers? caius 01/26/11 01:23 AM Re: How to change refresh rate in MAME drivers? 9ofzeven  01/27/11 11:44 AM Re: How to change refresh rate in MAME drivers? caius  01/27/11 12:21 PM Re: How to change refresh rate in MAME drivers? 9ofzeven  01/28/11 11:33 AM Re: How to change refresh rate in MAME drivers? R. Belmont  01/26/11 06:17 PM Re: How to change refresh rate in MAME drivers? caius  01/26/11 09:40 PM Re: How to change refresh rate in MAME drivers? couriersud  01/26/11 09:45 PM Re: How to change refresh rate in MAME drivers? caius  01/26/11 10:49 PM Re: How to change refresh rate in MAME drivers? R. Belmont  01/26/11 10:52 PM Re: How to change refresh rate in MAME drivers? drewcifer  01/27/11 12:35 AM Re: How to change refresh rate in MAME drivers? caius  01/27/11 01:10 AM Re: How to change refresh rate in MAME drivers? AWJ  01/27/11 01:15 AM Re: How to change refresh rate in MAME drivers? caius  01/27/11 01:53 AM Yeah, operative words: in a frame (nt) mogli  01/27/11 07:49 AM Re: How to change refresh rate in MAME drivers? AWJ  01/27/11 02:30 AM Re: How to change refresh rate in MAME drivers? caius  01/27/11 01:09 PM Re: How to change refresh rate in MAME drivers? R. Belmont  01/27/11 12:56 AM Re: How to change refresh rate in MAME drivers? AWJ  01/27/11 01:01 AM Re: How to change refresh rate in MAME drivers? mogli  01/27/11 12:18 AM Re: How to change refresh rate in MAME drivers? R. Belmont  01/27/11 12:59 AM Re: How to change refresh rate in MAME drivers? mogli  01/27/11 06:13 AM Re: How to change refresh rate in MAME drivers? R. Belmont  01/31/11 11:27 PM Re: How to change refresh rate in MAME drivers? mogli  02/04/11 07:58 AM Re: How to change refresh rate in MAME drivers? Vas Crabb  02/02/11 11:39 AM

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