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| The DSP is an additional processor used by the Wii/GCN to process sound. Dolphin has two ways to emulate the DSP.
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| *HLE (High Level Emulation): HLE works by using a DSP engine created by the developers from studying the real DSP. DSP HLE is with almost no overhead and does not require any additional files, however it may have some problems in some games.
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| **DSP HLE is improving on a regular basis. {{revision|3.5-78}} and {{revision|3.5-1154}} corrected most of the problems in the AX ucode, the most common audio microcode on the GameCube and Wii. {{revision|4.0-7286}} and New-Zelda-HLE rewrote the Zelda ucode, improving it for the remaining games. Currently DSP HLE will have perfect sound in most games. However, some issues may remain, and all sound issues need to be confirmed with LLE.
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| *LLE (Low Level Emulation): LLE uses DSP ROM files to emulate the DSP's hardware behavior. This unfortunately requires a lot more processing power, but provides perfect sound in nearly all games. As of {{revision|3.5-1031}} Dolphin includes a developer-created DSP ROM which allows DSP LLE to function without dumping LLE files from a console. Its compatibility is very good, but it will have errors that a DSP ROM from a console does not have.
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| For the absolute best audio, DSP ROM files should be dumped from a console. There are several ways to dump DSP files, but the easiest method is to use DSPSpy on a Wii with the Homebrew Channel installed. For details on other methods to dump DSP files, go to the {{forum|forum thread|tid=23103}}.
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| == Dumping Wii DSP files with DSPSpy == | | == |
| You will need:
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| *A homebrewed console (See how to install [http://wiibrew.org/wiki/Homebrew_Channel Homebrew Channel] on a non-hacked Wii console)
| | [[File:[[File:Example.jpg]][[File:[[Media:Example.jpg]]--[[Special:Contributions/79.109.235.92|79.109.235.92]] 17:27, 21 February 2016 (CET)--[[Special:Contributions/79.109.235.92|79.109.235.92]] 17:27, 21 February 2016 (CET)<nowiki> |
| *A SD card
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| Download [http://forums.dolphin-emu.org/attachment.php?aid=7636 DSPSpy] and extract it. Rename it to '''boot.dol''', then place it into \apps\DSPSpy\ folder on the root of your SD card (it should then look like X:\apps\DSPSpy\boot.dol). Launch the app from Homebrew Channel on your Wii, and two files will be created: '''dsp_rom.bin''' (8KiB) and '''dsp_coef.bin''' (4KiB). Move these files into your [[Controlling the Global User Directory|Global User Directory]] \GC\ folder, which by default on Windows is located in %userprofile%\Documents\Dolphin Emulator\, and Dolphin will now have official DSP ROMs from your Wii.
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| == Help ==
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| For more details, or if you need further help, please go to the forum thread below. They will happily help you with the process. Please do not ask for the DSP files directly.
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| *http://forums.dolphin-emu.org/showthread.php?tid=23103
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| == See Also == | | ]]]]]]]]]]]]]]'''''''''''''''' |
| *[https://dolphin-emu.org/blog/2014/11/12/the-rise-of-hle-audio/ Dolphin Blog: The Rise of HLE Audio]
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| *[https://dolphin-emu.org/blog/2015/08/19/new-era-hle-audio/ Dolphin Blog: The New Era of HLE Audio]
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| [[Category:Tutorials]]
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