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Also, I am guessing the Genesis has no such interpolation on it's Audio DSP? Genesis, while the sound effects are much less quality, they sound extremely crisp and "raw"

The fliters present on the analog side have very low effect on the sound. The muffledness comes from the low quality samples and as mentioned earlier the interpolation which you cannot do anything about. I would presonally like an SPC clone where one can disable that, most music starts to sound muc...

If you look at jwdonal's redrawn schematics , there is some filtering around the output of the SHVC-APU. But unless you already have witnessed that it sounds different between the console and an emulator, that filtering is not what you're hearing, and what tepples says is true. Wow... i'm going to ...

The DSP performs a "Gaussian interpolation" step immediately after BRR decoding. This step reduces aliasing but severely reduces the treble of the decoded waveform. To counter this, my BRR encoder preemphasizes the wave somewhat, boosting treble before encoding. But I imagine that not all...

Is this the same sound in emulators as in hardware? If so, nothing can be done. I don't think the LPF is in the digital domain, I believe it's done with passive analog components on the PCB. At least it was with the 1st model SNES with the APU board. I'm not sure about the later model that I referr...

You can do it of course, as the 65xx is turing complete. But you cannot do it well. And on a 2.68MHz processor with an instruction throughput around 0.4MIPS ... you had better not try. The 65xx is just an awful design for C code. However, I'm not convinced that the only alternative is to go right t...

Hi

I really hate the washed out sound of the low pass filter on the SNES. Does anybody know where on the PCB the raw analog audio is prior to the LPF? This is on a SNES 1993 PCB without the separate APU.