emkay Posted March 28, 2020 Share Posted March 28, 2020 (edited) That sound routine seems to be very good (very stable and clear) . But no one can overcome rules of physics. The higher tones get louder because they change more often, resulting in more "pulse power". That's why newer chips have triangle or even sine waves build in. They don't change the frequency but the voltage very fast. The chance with POKEY to get rid of the sampling noise is to put them into the ultra high sound range, or find a way to cancel the high tones. A shifted replay of two , 3 or even 4 channels could remove the high "beep" just by the resulting overlay of replaced voltage levels. But it surely will make the low tones louder. The timing is depending on the wave length. It may need some testing ... Edited March 28, 2020 by emkay Quote Link to comment Share on other sites More sharing options...
xxl Posted March 28, 2020 Author Share Posted March 28, 2020 (edited) 2 hours ago, Faicuai said: Tested it on real HW and sounds like shit. Even on unmodified A800 HW. possible because the procedure uses RAM under the ROM which this computer does not have so any random values are restored. this is for the XL / XE series Edited March 28, 2020 by xxl Quote Link to comment Share on other sites More sharing options...
emkay Posted March 28, 2020 Share Posted March 28, 2020 23 minutes ago, xxl said: possible because the procedure uses RAM under the ROM which this computer does not have so any random values are restored. this is for the XL / XE series If some serious talk was possible in this forums, we had to talk of "linear audio" . There is no "bass" to talk about, as there is none. Seems some guys have some strange "audio devices" connected, so there might be some "bass" audible. I wonder of the equalizer settings . I'd bet 200Hz at + 9db? Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted March 28, 2020 Share Posted March 28, 2020 hard bass on a real stereo without any super EQ super boosting sound just fine... that rabbit must be for the stew... Quote Link to comment Share on other sites More sharing options...
Faicuai Posted March 28, 2020 Share Posted March 28, 2020 (edited) 2 hours ago, xxl said: possible because the procedure uses RAM under the ROM which this computer does not have so any random values are restored. this is for the XL / XE series No, its not. It is for NON-Ultimate/Incognito machines (which happen to be the vast majority of contemporary RAM/ROM upgrades, out there). I am under the impression that (after comparing) Older GTIA-sound channel demos seem to sound better (beefier, louder, bass-like) through the 800 dedicated speaker than this latest revision when heard over PC's audio output via Altirra... (sounds subdued, gutless). Edited March 28, 2020 by Faicuai Quote Link to comment Share on other sites More sharing options...
Faicuai Posted March 29, 2020 Share Posted March 29, 2020 On 3/27/2020 at 11:40 AM, xxl said: I have Atari VBXE, 4 MB RAM, STEREO and these programs work perfectly ? Mhhmm... Could you, please, post screen-photo (cell-camera) from full execution of Self-Test (MEMORY) ran from XE_v03 or XEGS_v04 Atari ROMs on THAT 4MB machine you mention above? Quote Link to comment Share on other sites More sharing options...
xxl Posted March 29, 2020 Author Share Posted March 29, 2020 of course: Quote Link to comment Share on other sites More sharing options...
xxl Posted April 2, 2020 Author Share Posted April 2, 2020 another three minutes of 1bit scream everedux.mp3 everedux.atr 6 1 Quote Link to comment Share on other sites More sharing options...
+Stephen Posted April 2, 2020 Share Posted April 2, 2020 I love it. One of the first things I downloaded when I got my XM301 was a "stereo" song that played a Beetles tune (I think the song was Yesterday). It used Pokey and the internal speaker, and I remember it turned off the screen but the background was green. The sound quality on these is so much better - the Beetles tune was mostly just a beeper. 1 Quote Link to comment Share on other sites More sharing options...
Faicuai Posted April 2, 2020 Share Posted April 2, 2020 On 3/28/2020 at 8:11 PM, xxl said: of course: Sorry for not answering sooner. What I meant, is running the attached OS test (unmodified r03 or r04 XE/GS OS) on 128, 320, 576 and 1088 configs. with your RAM expansion: I would be surprised if it completes it successfully on all RAM-configs. Quote Link to comment Share on other sites More sharing options...
xxl Posted April 2, 2020 Author Share Posted April 2, 2020 (edited) I totally don't understand your problem. what is the purpose of it. Do you think that atari will not pass the memory test? How does this relate to music on GTIA? so many questions and no answers Edited April 2, 2020 by xxl Quote Link to comment Share on other sites More sharing options...
Faicuai Posted April 2, 2020 Share Posted April 2, 2020 (edited) 21 minutes ago, xxl said: I totally don't understand your problem. what is the purpose of it. Do you think that atari will not pass the memory test? How does this relate to music on GTIA? so many questions and no answers [ Would that be on all of the configs. mentioned above? (128, 320, 576 and 1088)? If so, that would be interesting... ] A bit of clarity (over something you already know): These last wave of GTIA-sound demos do not run as intended on Ultimate-1MBs and Incognito/800 upgrades. They do run, however on stock XL configs, and on Altirra mirroring such configs. I suppose they also run successfully on Antonia. What is interesting is that the OS plain-vanilla extended RAM test usually fails on several RAM expansion configs. and I do wonder how Antonia handles it. Hope it is a bit more clear, now. Edited April 2, 2020 by Faicuai Quote Link to comment Share on other sites More sharing options...
xxl Posted April 2, 2020 Author Share Posted April 2, 2020 maybe you are unlucky with memory expansion Quote Link to comment Share on other sites More sharing options...
Faicuai Posted April 2, 2020 Share Posted April 2, 2020 (edited) 6 minutes ago, xxl said: maybe you are unlucky with memory expansion Well, what you don't know is the above OS test does run well on Incognito, for instance. So there's more running under Antonia's memory-management hood, though... but it is not (by any means) a popular RAM upgrade, though. Edited April 2, 2020 by Faicuai Quote Link to comment Share on other sites More sharing options...
xxl Posted April 2, 2020 Author Share Posted April 2, 2020 I'm glad I dispelled your doubts. As you can see, this extension does not have such bugs as others that are on the market a few years longer. Quote Link to comment Share on other sites More sharing options...
xxl Posted May 24, 2020 Author Share Posted May 24, 2020 djmaximum: chilchips chilchips.mp3 chilcips.atr 6 Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted May 25, 2020 Share Posted May 25, 2020 All I get is a nasty buzz from the GTIA speaker. Why do you make this stuff that will not run on my system? Do you hate me (us)? Are you jealous that you don't have an 802 or 816? Something is wrong. This is disgusting. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted May 25, 2020 Share Posted May 25, 2020 (edited) not to poke the bear but the '816 was in part designed by someone who was employed by Atari at some point.... just saying look it up... Edited May 25, 2020 by _The Doctor__ 1 Quote Link to comment Share on other sites More sharing options...
xxl Posted May 25, 2020 Author Share Posted May 25, 2020 3 hours ago, Kyle22 said: Do you hate me (us)? come on? I like you. That's why I put mp3 too. so that those with modified computers could listen. 2 Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted May 25, 2020 Share Posted May 25, 2020 what are the best mp3 players that will run on '802 and '816 machines? 1 Quote Link to comment Share on other sites More sharing options...
xxl Posted May 25, 2020 Author Share Posted May 25, 2020 upgrade. Quote Link to comment Share on other sites More sharing options...
andymanone Posted May 25, 2020 Share Posted May 25, 2020 29 minutes ago, _The Doctor__ said: what are the best mp3 players that will run on '802 and '816 machines? This one ? Gtx., andY Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted May 25, 2020 Share Posted May 25, 2020 That’s not something that is readily available... with all that’s going on, getting them would be pricey and slow. So that leaves us with software choices 1 Quote Link to comment Share on other sites More sharing options...
+CharlieChaplin Posted May 25, 2020 Share Posted May 25, 2020 7 hours ago, _The Doctor__ said: what are the best mp3 players that will run on '802 and '816 machines? Data recorders ;-) ... Okay, they only play WAV (uncompressed MP3) and only in mono, but it does not cost any processor time, just a simple Poke 54018,62 (or something like that) and you can continue with whatever you want on the A8 (play games, use applications, etc.). Alternatively you can play the MP3 from your MP3 player, Hifi system, etc. and also use the Atari for something else... 1 2 Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted May 25, 2020 Share Posted May 25, 2020 (edited) winamp is so sorry to hear that, so is Mplayer, MPG123, mp3blaster, MOC, VLC, ffplay, and CMUS..... why everyone should just load and play their music from spinning shiny plastic disks called cd's and maybe from shiny plastic disk players connected to home stereos.... it was foolish of me to use my Atari to control the lynux media server/player back in 2000 or so... Crazy me still has about 7 scsi disks full of those crazy mp3's and some are still backed up to data tape back ups... I bet you they would all fit on a single tiny form factor drive today though.... So no mp3 player? is there any compression afforded through PDM player? SAP just is going to get us there.... very odd stuff... since we are faster and have very fast mass storage devices.... maybe something along these lines for the Atari 8 bit... https://brokenbytes.blogspot.com/2018/03/a-48khz-digital-music-player-for.html although this isn't exactly mp3 either... 4 to 1 compression though.... possible inclusion of mp3 player as feature creep for SIO devices being brewed up today as well? Don't know but as of yet nothing is readily available out there correct? Edited May 25, 2020 by _The Doctor__ 1 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.