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[GH-ISSUE #664] [Feature request] Intergrate ATRAC9 Codec #157

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opened 2026-02-27 21:04:53 +03:00 by kerem · 6 comments

kerem commented

2026-02-27 21:04:53 +03:00

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Originally created by @alexbogun on GitHub (Aug 30, 2024).
Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/664

In the example of Bloodborne, the emulator can already play all sounds stored in .mp3 format (packed in .fsb) but cannot process .at9 files (ATRAC9). Maybe this library can help: https://github.com/Thealexbarney/LibAtrac9/tree/master

Originally created by @alexbogun on GitHub (Aug 30, 2024). Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/664 In the example of Bloodborne, the emulator can already play all sounds stored in .mp3 format (packed in .fsb) but cannot process .at9 files (ATRAC9). Maybe this library can help: https://github.com/Thealexbarney/LibAtrac9/tree/master

kerem

2026-02-27 21:04:53 +03:00

closed this issue
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kerem commented

2026-02-27 21:04:53 +03:00

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@bigol83 commented on GitHub (Aug 30, 2024):

Resident Evil Hd Remaster (CUSA01067) uses at9 too, for both fmvs audio and ingame cutscenes.

@bigol83 commented on GitHub (Aug 30, 2024): Resident Evil Hd Remaster (CUSA01067) uses at9 too, for both fmvs audio and ingame cutscenes.

kerem commented

2026-02-27 21:04:53 +03:00

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@alexbogun commented on GitHub (Aug 30, 2024):

Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there?

@alexbogun commented on GitHub (Aug 30, 2024): Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there?

kerem commented

2026-02-27 21:04:54 +03:00

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@georgemoralis commented on GitHub (Aug 30, 2024):

at9 is using ajm library to play them , so adding it doesn't help , need to implemented ajm library too. Currently there is one dev working on this

@georgemoralis commented on GitHub (Aug 30, 2024): at9 is using ajm library to play them , so adding it doesn't help , need to implemented ajm library too. Currently there is one dev working on this

kerem commented

2026-02-27 21:04:54 +03:00

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@bigol83 commented on GitHub (Aug 30, 2024):

Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there?

Nope, it doesn't work on Resident Evil either in shadps4 right now. I know it uses at9 for fmvs and cutscenes because in game files there are lots of at9 files that i decrypted with a tool to confirm they are the audio tracks of ingame events and fmvs.

@bigol83 commented on GitHub (Aug 30, 2024): > Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there? Nope, it doesn't work on Resident Evil either in shadps4 right now. I know it uses at9 for fmvs and cutscenes because in game files there are lots of at9 files that i decrypted with a tool to confirm they are the audio tracks of ingame events and fmvs.

kerem commented

2026-02-27 21:04:54 +03:00

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@efigr commented on GitHub (Aug 30, 2024):

Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there?

Nope, it doesn't work on Resident Evil either in shadps4 right now. I know it uses at9 for fmvs and cutscenes because in game files there are lots of at9 files that i decrypted with a tool to confirm they are the audio tracks of ingame events and fmvs.

Can confirm, Resident Evil 5 (CUSA04284) also uses at9 files.

@efigr commented on GitHub (Aug 30, 2024): > > Interesting, so, at9 generally works, but not in Bloodborne. Maybe they are encrypted in BB? Any idea what could be different there? > > Nope, it doesn't work on Resident Evil either in shadps4 right now. I know it uses at9 for fmvs and cutscenes because in game files there are lots of at9 files that i decrypted with a tool to confirm they are the audio tracks of ingame events and fmvs. Can confirm, Resident Evil 5 (CUSA04284) also uses at9 files.

kerem commented

2026-02-27 21:04:54 +03:00

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@Hermiten commented on GitHub (Oct 1, 2024):

I'm closing the issue because it's not planned. They have to implement AJM for this.

@Hermiten commented on GitHub (Oct 1, 2024): I'm closing the issue because it's not planned. They have to implement AJM for this.

kerem referenced this issue

2026-02-27 21:12:11 +03:00

[PR #157] [MERGED] Various changes #1347