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AV Famicom HVC-101 – Audio Balance Restoration Mod | RetroRGB
https://www.retrorgb.com/av-famicom-hvc-101-audio-balance-restoration-mod.html
AV Famicom HVC-101 – Audio Balance Restoration Mod. This is a guest post from fluxcore that details how to improve audio from your NES/Famicom and make them sound closer to the proper audio the original Famicom outputs…. Obtaining decent audio output from the Famicom and NES systems has always been an issue – the original, ‘reference’ console, the …
Everdrive N8 & Famicom Expansion Audio to NESRGB
http://www.firebrandx.com/edn8tonesrgb.html
Everdrive N8 & Famicom Expansion Audio into NESRGB Mod: With the Everdrive N8 new firmware coming soon featuring improved expansion audio emulation (especially for VRC6 in Japanese Castlevania III), I decided to make a web guide with pictures on how to mix the expansion audio from the Everdrive N8 and/or a Famicom-to-NES adapter into the NESRGB board installed on a …
NES Expanded Audio: 100k Pot Mod - The Curriculum Crasher
https://curriculumcrasher.com/2017/01/24/nes-expanded-audio-100k-pot-mod/
By kevinrburke on January 24, 2017. Like many others, I modified my original NES with a 47k resistor to support expanded audio playback. While connecting expansion pins 3 and 9 does access the additional channels, the balance is very inconsistent. This is due to variability in the chips added to Famicom cartridges and to the Famicom Disk System and how they were …
Famicom & NES - Simple Tweaks to Restore Audio ... - …
https://nerdlypleasures.blogspot.com/2018/01/famicom-nes-simple-tweaks-to-restore.html
A standard audio mod using pin 46 and a 220uF cap is best. Twin Famicom AN-500 & 505 Ace, the creator of the Sega Genesis MegaAmp, found that in order to disable the overdone low-pass filter, you must remove the .022uF at C205 (in between the audio and video RCA jacks).
Open Hidden Sound Channels in the NES - RetroFixes
http://www.retrofixes.com/2014/05/open-hidden-sound-channels-in-nes.html
To get expansion audio activated you only need to add a resistor inside your NES. Phillips Screwdriver Medium Sized Experimentation suggest using a resistor ranging from 24k up to 56k . Pick a range in the middle and test the sound. The sounds with PowerPaks, Everdrives vs Real Famicom carts can vary. Soldering Iron & Solder
Nerdly Pleasures: Famicom Expansion Audio Overview
https://nerdlypleasures.blogspot.com/2017/08/famicom-expansion-audio-overview.html
First, we must consider the features of the internal audio. Inside the NES and Famicom's CPU chip, the 2A03 or 2A07, there exists an Audio Processing Unit. The APU can produce five channels of music. The first two channels produce pulse wave generators with variable duty cycles (three effective choices) with 11-bit frequency divider.
NES Mods - RetroRGB
https://www.retrorgb.com/nesmods.html
A “stereo sound” mod. The NES actually produced sound two different ways and combined them into one output. You can tap into the pre-mixed audio and modify it so they each go to their own speaker. Sometimes this produces very cool sound effects, other times it can be annoying. I have the two channels mixed through a knob:
NES - RetroRGB
https://www.retrorgb.com/nes.html
Hi-Def NES. This is a review of the HDMI mod that’s compatible with NES and Famicom consoles. It’s an amazing mod that outputs up to 1080p! NES Classic Review. The NES Classic is the most cost-efficient way to (officially) play NES games on an HDTV.
Nerdly Pleasures: Famicom AV : Issues and Solutions
https://nerdlypleasures.blogspot.com/2014/10/famicom-av-issues-and-solutions.html
Fortunately, the Famicom does not need a mod because it has a pair of pins, 45 and 46, which allow a Famicom cartridge to mix in cartridge based audio. If the cartridge hardware does not support external audio, these pins will be connected together.
NES Stereo Modifications with Easy Schematics - RetroFixes
http://www.retrofixes.com/2013/09/nes-stereo-modifications-with-easy.html
NES Stereo Modifications with Easy Schematics. The NES came with a standard mono output. This was perfectly acceptable in 1986 but with the advancement in home theater systems and Chiptune musicians stereo separation is needed. This modification will bypass the hum inducing RF box, greatly improving the sound quality.
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