exxos's H5 A3 Build

Share your building progress here!
User avatar
JezC
Posts: 2081
Joined: Mon Aug 28, 2017 11:44 pm

Re: exxos's H5 A3 Build

Post by JezC »

PhilC wrote: Fri Oct 30, 2020 9:46 pm In fairness I had no idea which tune it was as the organs drove me crazy after 10 seconds.
:lol: :stars:
User avatar
exxos
Site Admin
Site Admin
Posts: 23499
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: exxos's H5 A3 Build

Post by exxos »

JezC wrote: Fri Oct 30, 2020 9:48 pm True...Roland's GS or the Yamaha XG are much better IMO...though I might be biased (as he looks at the array of Yamaha MU/Roland Sound Canvas synths on the desk in front of him...) :lol:
A guy I used to work with lent me his "Dr synth" years ago, he had that setup and was godlike. The midi stuff sounded like the original music it was that good.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
exxos
Site Admin
Site Admin
Posts: 23499
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: exxos's H5 A3 Build

Post by exxos »

@Icky and I have noticed the MIDI Volume is a lot lower than the YM volume.. Is not overly a massive issue, but the MIDI output needs a preamp to get it up to the YM sound level. So I am in the middle of redesigning the audio circuit to do away with the single transistor amp, which really just seems to act as a buffer, for a dual op amp where I can use one amp to increase the volume of the MIDI, and then use a second amp as the main output audio driver.

The blue line is 5 kHz MIDI simulation waveform. The green is one 1Khz YM sound chip simulation waveform. The red is the combined output of both. I actually made the final lamp more of a divide by two because the combined audio input of both of them was taking it to well over one volt which would mean the sound level would be twice as loud as it is now which I think would be too much. In any case the volume level can be controlled by altering a resistor on the board so it should not be too much hassle to just do it by ear anyway.

Capture.PNG
Capture.PNG (249.03 KiB) Viewed 3925 times
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
exxos
Site Admin
Site Admin
Posts: 23499
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: exxos's H5 A3 Build

Post by exxos »

PCB designed :)

Capture.PNG
Capture.PNG (35.42 KiB) Viewed 3848 times
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
Icky
Site Admin
Site Admin
Posts: 3986
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: exxos's H5 A3 Build

Post by Icky »

Looking good @exxos.

Winamp - that brings back memories
User avatar
JezC
Posts: 2081
Joined: Mon Aug 28, 2017 11:44 pm

Re: exxos's H5 A3 Build

Post by JezC »

Icky wrote: Mon Nov 02, 2020 12:48 pm Looking good @exxos.

Winamp - that brings back memories
I think that's what I still use to create my lossless MP3 files... ;)
User avatar
exxos
Site Admin
Site Admin
Posts: 23499
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: exxos's H5 A3 Build

Post by exxos »

First tests of the X2 MIDI module.

Software
http://www.jdkoftinoff.com/main/Histori ... DI_Player/


https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
exxos
Site Admin
Site Admin
Posts: 23499
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: exxos's H5 A3 Build

Post by exxos »

..and for those who didn't like murdered Thriller...

Granted this is a different MIDI player, but sounds a lot better with the X2 module...


https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
PhilC
Moderator
Moderator
Posts: 6016
Joined: Fri Mar 23, 2018 8:22 pm

Re: exxos's H5 A3 Build

Post by PhilC »

Reminds me a bit of my 05R/W. Might have to get one after Christmas
If it ain't broke, test it to Destruction.
Post Reply

Return to “H5 A3 USER BUILDS”