Mix minus 2

Podcast Tech: Setting up a UMC404HD for Mix-Minus

When we first started Swinger University Podcast we read a bunch of books, websites, blog posts, Reddit groups, you get it, we research stuff.

After a ton of research I decided to go with a “simpler” audio input than a mixer (didn’t need all the EQ and inputs, or so I thought). We decided on the Behringer U-Phoria UMC404HD for a few reasons:

Pros

  • Excellent sound quality
  • Multi Track support
  • 4 Microphone inputs
  • Phantom Power (we use Condenser mics)
  • Easily transportable
  • Relatively inexpensive

Cons

  • Meh documentation (Foreshadowing…)

It was easy to setup using the quick start guide, and we started recording episodes. We were getting a lot of feedback that we sounded great. All was well…

Then we had the realization that we might want to record phone or Zoom interviews. More research. Every single article pointed to something called a mix-minus… using a mixer. Now I was thinking that UMC404HD was a terrible mistake. Hours of research later and I was convinced that I needed to scrap the UMC404HD. Remember the con above, the Behringer documentation didn’t really help. Here is what was in the “Manual”: “PLAYBACK OUTPUTS A 1/L & 2/R / B 3/L & 4/R (UMC404HD)connect to external speakers for additional monitoring options.”

Here is what a mix minus is. All in studio audio (mics, sounds effects, remote caller – the Mix) is sent to the phone minus the callers audio. The minus is more of an “everything-but” – everything in the mix, but not the caller’s track. Most articles refer to the mixer’s FX track to send all the tracks to the remote caller minus the callers audio. Here is a great article on a traditional Mix-minus setup.

I kept putting off the mixer purchase because we didn’t need it yet, and I didn’t want to spend the money. I continued trolling the internet for a miracle, and studying the lingo used by the audio engineering community and I learned some key terms. The most important two were: Sends, and Signal Path (Many thanks to my good friend and musician – M.M.). This new vocabulary boosted my Google search and then it happened… A miracle!

MickNelso to the rescue! MickNelso had written up an article on Signal Path Diagram for behringer UMC404HD. This fantastic article opened the door to the answer to my problem!

For anyone recording podcasts, and needing to set up a mix-minus with the U-Phoria UMC404HD, here is your answer! The table below details our recording setup.

DiagramInput/outputDAWUMC404HD (manual Ref)
1Microphone 1Track 1 – In (Behringer Left Line In 1-2)Input 1 (1)
2Microphone 2 (optional)Track 2 – In (Behringer Right Line In 1-2)Input 2 (1)
3Phone Splitter (Headphones)Track 3 – In (Behringer Right Line In 3-4)Input 3 (1)
5Phone Splitter (Microphone)Send (In Studio Mics) – Out (Line Out 1-2)Playback Outputs 1/L
Mix minus 1
UMC404HD Mix Minus – DAW Diagram
Mix minus 2
UMC404HD Mix Minus – Hardware Diagram

I hope this can help other podcasters.

Authors

  • Ed Swinger

    Design, Audio, Video, Writing, Voice, Production

    Ed brings extensive expertise in user experience, website design and development, and professional audio/video production. With a background in voice-over work and professional speaking, he ensures every episode meets broadcast-quality standards. Ed executes all technical aspects of production: recording in a dedicated studio designed for optimal sound quality, filming with three Insta360 4K cameras, professional audio processing (noise reduction, EQ, compression, loudness management), and editing in DaVinci Resolve. He’s programmed custom OBS macros that provide professional camera direction without a traditional technical director. Ed’s strength is turning complex technical requirements into seamless, professional execution that makes audience experience effortless.

  • Gemini Generated Image o63uhto63uhto63u e1772846096638

    Research, Writing, Voice, Marketing, Community

    Phoebe holds a BA in Communications with a minor in Small Group and Personal Dynamics. She brings deep expertise in sexual health, relationship dynamics, and non-monogamous relationship structures. As a researcher, she meticulously curates each podcast episode, drawing from medical journals, expert interviews, and her 10+ years of lifestyle research and lived experience. Her communication background allows her to synthesize complex topics and present them accessibly across platforms. She creates marketing collateral, publishes across 8+ social media platforms, manages all SEO optimization, and moderates 3 active community forums where listeners actively seek guidance on lifestyle topics. Phoebe’s strength is taking research and experience, then making it both digestible and actionable for the community.