Forums

Sega Master System / Mark III / Game Gear
SG-1000 / SC-3000 / SF-7000 / OMV
Home - Forums - Games - Scans - Maps - Cheats - Credits
Music - Videos - Development - Hacks - Translations - Homebrew

View topic - Question about the sound of a gameplay video

Reply to topic
Author Message
  • Joined: 05 Apr 2021
  • Posts: 14
Reply with quote
Question about the sound of a gameplay video
Post Posted: Thu Jan 16, 2025 12:21 pm
So one day I was looking at gameplay of one of my favourite games "Madou Monogatari II" and I noticed that the music and sounds didn't sound like what the game actually sounds

I actually like how it sounds and am interested in trying out games with this sound, but I don't know if there is an emulator or something that changes the sound to make it sound like that

  View user's profile Send private message
  • Site Admin
  • Joined: 19 Oct 1999
  • Posts: 15021
  • Location: London
Reply with quote
Post Posted: Thu Jan 16, 2025 4:35 pm
Without listening to the video I can think of Dega’s “wave table” PSG audio. It’s pretty bad in all other respects though.
  View user's profile Send private message Visit poster's website
  • Joined: 05 Apr 2021
  • Posts: 14
Reply with quote
Post Posted: Thu Jan 16, 2025 5:53 pm
Thank you for telling me, I can see how bad the emulator is, I was only interested in the sound. Is there some explanation for the different sound tho?
  View user's profile Send private message
  • Site Admin
  • Joined: 19 Oct 1999
  • Posts: 15021
  • Location: London
Reply with quote
Post Posted: Thu Jan 16, 2025 8:16 pm
PSG audio consists of a counter that counts down for the top half of each square wave and then again for the bottom half. You can use this to approximate a position in the full wave and then look up a short waveform to make a slightly rough approximation to how something like a mod file (or SNES audio) works.

It’s a complete hack of the audio, similar to trying to approximate it by playing MIDI or AdLib audio.
  View user's profile Send private message Visit poster's website
  • Joined: 05 Sep 2013
  • Posts: 4029
  • Location: Stockholm, Sweden
Reply with quote
Post Posted: Fri Jan 17, 2025 8:49 am
BKon wrote
Is there some explanation for the different sound tho?


It's just the emulator pretending the SMS audio chip can generate other waveforms, basically.
  View user's profile Send private message Visit poster's website
  • Joined: 12 Aug 2021
  • Posts: 76
Reply with quote
Post Posted: Fri Jan 17, 2025 11:24 am
The video linked in the first post plays PSG, it's not Dega's alternate sound option.

At around the 2 minutes mark though, the difference is notable in the percussion compared to the OST I could find.


I think it's just an emulator that has inaccurate noise channel emulation in this case.
  View user's profile Send private message
Reply to topic



Back to the top of this page

Back to SMS Power!