Skip to content

Mega Blaster 2 Firmware
Compare
Choose a tag to compare
@AidanHockey5 AidanHockey5 released this 20 Jan 21:51
· 2 commits to master since this release
1.27
1eeb521
  • Added a new sync-tone feature.
    For users looking to sync-up individual channel audio streams in their external recording software, this update adds a "Sync-tone" feature that may give you a helping hand.

When the sync-tone feature is enabled, every unmuted FM and PSG channel will emit three tones on and off, 250ms between each key on/off. Then, 250ms later, the track will start. The YM2612/3438 use FM Channel 6 for PCM samples sent to the DAC, therefore, you can sync the PCM track using Channel 6.

This update is handy for syncing up oscilloscope videos. You can mute all but one sound chip channel at a time, record your 'scope video, then do the same for each channel. The sync-tone will help you find the starting point of each stream, even if a particular channel is muted at the start of a soundtrack.

Pro tip: The PSG's 3rd square-wave channel and noise channel will interact with one another if they are both un-muted at the same time. If both channels are active when the sync-tone is played, the PSG may sound detuned or inconsistent. It's recommended to only have either the 3rd square wave channel OR the noise channel un-muted at a time.

Assets 4
Loading