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Audio Emulation: Difference between revisions
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Added a note about AX HLE, typo fix, minor additions.
Storm20200 (talk | contribs) m (Fixed the links to reflect new web url: dolphin-emulator.com is now dolphin.emu.org) |
(Added a note about AX HLE, typo fix, minor additions.) |
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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. | The DSP is an additional processor used by the Wii/GCN to process sound. Dolphin has two ways to emulate the DSP. | ||
*HLE (High Level Emulation): HLE works by using a DSP engine created by the developers from studying the real DSP. It is not perfect, and is notorious for causing garbled sounds, choppy audio, skipped instrumentation, and desyncs. But DSP HLE is very fast, with almost no overhead, and it comes with Dolphin; no additional files are needed. | *HLE (High Level Emulation): HLE works by using a DSP engine created by the developers from studying the real DSP. It is not perfect, and is notorious for causing garbled sounds, choppy audio, skipped instrumentation, and desyncs. But DSP HLE is very fast, with almost no overhead, and it comes with Dolphin; no additional files are needed. DSP HLE is improving on a regular basis, and versions {{revision|3.5-78}} and later have fixes for many GameCube games' HLE audio. | ||
*LLE (Low Level Emulation): LLE uses DSP files dumped from a Wii to perfectly emulate the DSP's hardware behavior. This unfortunately requires a lot more processing power, but provides for perfect sound in nearly all games. The DSP files required for DSP LLE cannot be bundled with Dolphin, and have to be dumped by each user from their own console. | *LLE (Low Level Emulation): LLE uses DSP files dumped from a Wii to perfectly emulate the DSP's hardware behavior. This unfortunately requires a lot more processing power, but provides for perfect sound in nearly all games. The DSP files required for DSP LLE cannot be bundled with Dolphin, and have to be dumped by each user from their own 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 | 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 [http://forums.dolphin-emu.org/showthread.php?tid=23103 forum thread]. | ||
== How to dump Wii DSP files with the Homebrew Channel == | == How to dump Wii DSP files with the Homebrew Channel == | ||
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*[http://forums.dolphin-emu.org/attachment.php?aid=7636 DSPSpy] | *[http://forums.dolphin-emu.org/attachment.php?aid=7636 DSPSpy] | ||
Download DSPSpy and extract the files. Then, rename "DSPSpy_wii_dump_roms.dol" to "boot.dol" and place | Download DSPSpy and extract the files. Then, rename "DSPSpy_wii_dump_roms.dol" to "boot.dol" and place the files into a folder in your apps folder on your SD card (example: E:/apps/DSPSpy). Run the program on your Wii, and two files will be created: "dsp_rom.bin" (8KiB) and "dsp_coef.bin"(4KiB). Move these files into your Dolphin's "./Sys/GC" folder, and Dolphin will now be able to run with either of the two DSP LLE options. | ||
== Help == | == Help == | ||