BODY: Most gameplay capture setups quietly throw away half the audio. The Nintendo Switch and Switch 2 both support LPCM 5.1, meaning select titles can push front left/center/right, rear left/right, and a subwoofer channel to a compatible receiver. But feed that HDMI signal into a typical capture card and you'll usually end up with plain stereo. GIGAZINE went hunting for a way to preserve the full surround mix while recording—and landed on Blackmagic Design's professional UltraStudio Express Recorder 3G.
The UltraStudio Express Recorder 3G is a Thunderbolt 3 capture device aimed at broadcast and production workflows rather than casual streamers. Crucially, it handles the uncompressed linear PCM multichannel audio that the Switch outputs over HDMI, letting you record gameplay with all six discrete channels intact rather than a downmixed stereo pair.
In practice, that means routing the console's HDMI into the unit, confirming the source title actually outputs 5.1 (not every game does), and setting the console's audio output mode appropriately. GIGAZINE walked through the physical connections and Blackmagic's Media Express/DaVinci Resolve capture path, verifying that the resulting file carries genuine surround audio you can play back on a 5.1 system.
For anyone building a preservation archive, a home-theater showcase, or high-end gameplay footage, keeping that lossless spatial audio is the difference between "close enough" and a faithful record of how the game was meant to sound.
The insider take
Blackmagic gear is easy to find in Tokyo—Akihabara and the pro-AV floors of big-box electronics stores stock the UltraStudio line, and it's a familiar name in Japan's broadcast and doujin video circles. That accessibility is exactly why a Japanese outlet like GIGAZINE would reach for a broadcast-grade box to solve a hobbyist problem. Nintendo has historically been quiet about its LPCM 5.1 support—there's no marketing push around it—so the surround feature lives mostly in enthusiast knowledge here rather than on the spec sheet, making hands-on write-ups like this one genuinely useful.
Originally reported by GIGAZINE (Japanese).