Iridion II ~ replayer bugs

[beanieaxolotl]

• In "intro", instrument #40's volume envelope loop plays faster than it should compared to playback on the GBA
• Both "title" and "gallery" fail to load due to inaccurate wave parameter map handling
• Most of the tracks have volume-related issues
• Most of the tracks have vibrato and envelope-related issues (the vibrato is noticeably off in 1B: final boss)
• "shinen" is missing the modulation effect (Instrument #141 is affected)
• Reverb is not implemented

[AnnoyedArt1256]

• In "intro", instrument #40's volume envelope loop plays faster than it should compared to playback on the GBA

I think you have to add 1 to the sustain point value in the volume envelope. I'm actually working on a GAX to Impulse Tracker and Furnace module converter, and that seems to fix the envelope issue IIRC.

[beanieaxolotl]

On my end, it seems that Instrument #40 does not have a sustain point. I added 1 to the sustain point value and that actually ended up breaking sustain functionality in other files further, while also not fixing the error.
I should have explained this better: The sidechain effect in instrument #40 is played at a faster rate than usual, and as a result drifts out of sync with the track. I have uploaded a comparison between the output of the track in mGBA 0.10.3 and the output from the Python script:
iridion2_bug_audio.zip

[AnnoyedArt1256]

oh wait, i think i had misremembered the fix. I'm not sure but I think I had added 1 to the last volume envelope entry's tick as a sort of "bandaid" fix to this (btw this also happens in "Exonaration 2" in Maya the Bee iirc)

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________________________________ From: beanie_axolotl ***@***.***> Sent: Monday, October 21, 2024 12:47 AM To: beanieaxolotl/shinen-gax-python ***@***.***> Cc: AnnoyedArt1256 ***@***.***>; Comment ***@***.***> Subject: Re: [beanieaxolotl/shinen-gax-python] Iridion II ~ replayer bugs (Issue #13) On my end, it seems that Instrument #40 does not have a sustain point. I should have explained this better: The sidechain effect in instrument #40 is played at a faster rate than usual, and as a result drifts out of sync with the track. I have uploaded a comparison between the output of the track in mGBA 0.10.3 and the output from the Python script: iridion2_bug_audio.zip<https://github.com/user-attachments/files/17452157/iridion2_bug_audio.zip> — Reply to this email directly, view it on GitHub<#13 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/APYE3IM5CCQCK5W3MVHQUEDZ4QQHLAVCNFSM6AAAAABQIBFMZOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIMRVGIZTSMRZGU>. You are receiving this because you commented.Message ID: ***@***.***>