Introduction: Why a Mixer Matters for Remote Podcasting

Remote interviews are the backbone of many modern podcasts, but they come with unique audio challenges. Even the best microphones and recording software can’t compensate for poor audio routing, inconsistent levels, or feedback loops. A podcast mixer acts as the central hub for your audio, letting you control every source independently and create a polished, professional sound. This guide walks you through choosing, connecting, configuring, and using a mixer for remote interviews so you can deliver crisp, clear episodes every time.

Whether you’re a solo host bringing in guests via Zoom or a co-hosted show with multiple in-studio and remote participants, a dedicated mixer gives you granular control. It handles preamplification, equalization, monitoring, and routing—all in real-time. Without one, you’re at the mercy of your computer’s built-in sound card, which often introduces latency, noise, and limited connectivity. Investing in a solid mixer is the single best upgrade you can make to your remote podcasting workflow.

Choosing the Right Mixer for Your Setup

Not all mixers are created equal, and your choice will depend on the number of participants, your technical comfort level, and your budget. Here are the key factors to consider.

Number of Input Channels

Count every microphone you plan to use simultaneously. For a single host with one remote guest, a 2-channel mixer may be sufficient. If you have co-hosts or multiple guests in the room, opt for 4 to 8 channels. Always leave one or two extra channels for future expansion or dedicated audio sources like a phone patch or USB audio from a computer. Many podcasters find that a four-channel mixer offers the sweet spot of flexibility without unnecessary complexity.

Analog vs. Digital Mixers

Analog mixers (e.g., the Behringer Xenyx series) are straightforward, cost-effective, and provide tactile control. They typically include basic EQ, effects, and a USB interface for direct computer connection. Digital mixers (like the Yamaha MGXU or the Allen & Heath ZED series with digital effects) offer more routing flexibility, onboard effects, and often multi-track recording over USB. For most podcasters, a quality analog mixer with a USB interface is more than enough. However, if you plan to do complex routing or need recallable settings, a digital mixer can save time during setup.

Built-in Features

  • USB audio interface – Allows the mixer to act as your computer’s sound card, sending the mixed stereo output and receiving audio from the computer. This simplifies the signal chain.
  • Phantom power (+48V) – Required for condenser microphones. Ensure the mixer provides phantom power on all channels you intend to use. Some mixers have a global phantom switch; others offer per-channel switching.
  • Equalization (EQ) – Basic high and low shelving or three-band EQ helps shape the tone and reduce muddiness. A mid-sweep EQ (semi-parametric) gives you more control to cut problematic frequencies.
  • Headphone monitoring – Dedicated headphone outs with separate level controls are essential for live monitoring during interviews. Look for a mixer with at least one headphone output; two is better for a co-host setup.
  • Effects (reverb/compression) – Not strictly necessary, but a touch of compression on the host mic can even out levels without post-processing. Built-in reverb is rarely needed for spoken word.
  • AUX sends – Useful for creating mix-minus feeds or sending a separate mix to a headphone amp for guests.

Popular starter models include the Behringer Xenyx Q802USB (2 mic inputs, USB), the Focusrite Scarlett 2i2 (more of an audio interface but can function as a simple two-channel mixer), and the RØDECaster Pro II for a fully integrated solution with built-in multi-track recording and Bluetooth. The RØDECaster Pro II is particularly popular because it includes built-in mix-minus routing, sound pads, and even a dedicated remote guest channel.

Check out the Behringer Xenyx Q802USB or the Focusrite Scarlett 2i2 for reliable entry-level options. For an all-in-one solution, explore the RØDECaster Pro II.

Gathering the Essential Equipment

Beyond the mixer itself, you’ll need a complete signal chain. Every component matters for achieving studio-quality sound.

  • Microphones – Dynamic microphones (e.g., Shure SM58, RØDE PodMic) are less sensitive to room noise and work well with mixers. Condenser mics (e.g., Audio-Technica AT2020) offer higher sensitivity and need phantom power. Dynamic mics are generally preferred for home studios because they reject background noise.
  • XLR cables – Use balanced XLR cables to reduce interference. Lengths of 10–15 feet are typically enough. Avoid cheap cables; invest in quality brands like Mogami, Canare, or Hosa for durability and noise rejection.
  • Headphones – Closed-back headphones prevent sound from bleeding into the microphone. Look for the Sony MDR-7506 or Audio-Technica ATH-M50x. Open-back headphones are not suitable for recording because they leak audio.
  • Computer – A laptop or desktop with recording software (free options like Audacity, or paid like Adobe Audition or Reaper). Ensure your computer has a USB 2.0 or higher port for the mixer.
  • USB cable – A quality USB-A to USB-B or USB-C cable, depending on your mixer’s output. Use the shortest cable that comfortably reaches your computer to reduce potential interference.
  • Stable internet connection – For remote interviews, a wired ethernet connection is ideal. If using Wi-Fi, sit close to the router and avoid streaming video simultaneously.
  • Mic stands and pop filters – Desk arms save space; boom stands give flexibility. Pop filters reduce plosives. A shock mount can further isolate the mic from vibrations.

Shure SM58 is a staple for vocal podcasting; RØDE PodMic is another excellent dynamic choice. For a condenser option, the Audio-Technica AT2020 offers great value.

Connecting Your Equipment Step by Step

Proper physical connection prevents noise and ensures your mixer communicates with your computer correctly. Follow these steps carefully.

Step 1: Position the Mixer

Place the mixer on a stable surface within arm’s reach. Ensure its ventilation slots are unobstructed. Keep it away from power bricks and unshielded cables that could introduce hum. Ideally, the mixer should sit at the same height as your microphone to minimize cable strain.

Step 2: Connect Microphones

Plug each XLR cable into the respective mixer channel input (usually channel 1, 2, etc.). If using condenser microphones, engage the +48V phantom power button. Do this before connecting the mic to avoid a loud pop. Dynamic mics do not need phantom power; enabling it on their channels is safe but unnecessary. For best results, use channel 1 for your host mic and channel 2 for a guest in the same room.

Step 3: Attach Headphones

Plug your headphones into the mixer’s headphone output. Most mixers have a dedicated “Phones” jack. Adjust the Phones level knob—set it to around 50% initially. Later you’ll fine-tune for safe listening levels. Some mixers also have a separate “Control Room” output that can be routed independently.

Step 4: Connect to Your Computer

Use the USB cable to connect the mixer’s USB port to your computer. For mixers without a built-in USB interface, you’ll need an external audio interface (e.g., Focusrite Scarlett) connected via the mixer’s main outputs (L/R) using 1/4-inch TRS cables into the interface’s line inputs. However, most modern podcast mixers include USB connectivity.

Once connected, your computer should recognize the mixer as a new audio device. On Windows, verify in Sound Settings > Input Device. On macOS, check Audio MIDI Setup or System Preferences > Sound. Set the mixer as both the default input and output device for best results.

Step 5 (Optional): Connect Additional Sources

If you plan to use a phone as a backup line, connect it to the mixer’s dedicated phone input (often a 1/4-inch TRS jack) or use an AUX channel. These sources can be blended into your main mix or monitored separately.

Configuring Audio Levels and Monitoring

Gain staging is critical to avoid distortion and maintain a clean signal. Proper levels ensure your recordings have ample headroom and minimal noise.

Setting Input Gain

With your microphone connected and seated properly, speak at your normal podcast volume. Turn the channel’s Gain knob (or “Trim”) slowly clockwise while watching the channel’s peak LED. Aim for the signal to peak around -6 dB to -3 dB on the mixer’s VU meter. If the red peak light flashes often, back the gain down. Repeat for each mic channel. For remote guests, the incoming audio level from the computer will be adjusted via the mixer’s USB return level.

Using the Mixer’s EQ

Start with all EQ knobs set to 12 o’clock (flat). For most podcast voices, a slight boost in the highs (around 10 kHz) can add clarity, and a gentle cut around 200–400 Hz reduces muddiness. Avoid drastic EQ changes—less is more in post-production. If your mixer has sweepable midrange, you can identify problematic frequencies by boosting the mid EQ and sweeping until the muddiness becomes obvious, then cutting that frequency by a few dB.

Setting the Mixer’s Main Output

Adjust the Main Mix fader so your overall level sits around 0 dB on the main meters when you speak. Never let it clip into the red. This master level will be sent to your computer via USB. Some mixers have a separate “USB” output level control; set it so your DAW receives a strong signal but not one that peaks above -3 dB.

Headphone Monitoring

Turn down the Phones knob until the audio is comfortable. You want to clearly hear your own voice and the remote guest’s audio without it being painful. Some mixers include a separate “Monitor” knob that controls what you hear in the headphones (e.g., a mix of the playback from computer versus the direct input). Use this to blend the two sources. A good starting point is equal parts direct mic and USB return.

Managing Remote Interviews: Routing and Mix-Minus

The biggest technical hurdle in remote podcasting is preventing echo and feedback. This is solved with a mix-minus setup: a dedicated output that sends all audio except the remote caller’s own voice back to them. Here’s how to create it with a mixer.

Understanding the Signal Flow

  1. Your local microphone(s) go into the mixer and are sent to the USB output (to the computer).
  2. The computer receives your audio and sends it to the remote caller via your conferencing software (Zoom, Skype, etc.).
  3. The remote caller’s audio comes back from the computer into the mixer, where you can monitor it.
  4. You must not send the remote caller’s audio back out to them, or they will hear a delayed version of themselves (feedback/echo).

Creating the Mix-Minus

Most podcast mixers have a USB/Bluetooth return channel or an “AUX” bus. Follow these steps:

  • Route the computer’s audio into the mixer via USB input. Many mixers have a dedicated “USB” input button or a separate channel labeled “USB/BT.”
  • Use the mixer’s Main Output (or a subgroup) to send your local mix to the computer. This will include your microphones and any local audio, but not the USB return from the computer.
  • If your mixer has a Control Room or Phones bus, you can set it to include both your local mics and the USB return, so you hear everything. The remote caller only receives the Main Output (without their own voice).

If your mixer doesn’t support a clean mix-minus directly, you can use software like Audio Hijack (macOS) or VoiceMeeter (Windows) to route audio, but a hardware solution is more reliable and introduces less latency.

Practical Example with Behringer Xenyx Q802USB

Connect the mixer to the computer via USB. Set your recording software (e.g., Audacity) to record from the mixer’s USB input. In Zoom, select the mixer as both the microphone and speaker. On the mixer, press the USB button in the “2-Track” section (this toggles whether USB audio is sent to the Main Mix). For mix-minus, leave the USB button unpressed (so USB return does not feed the Main Mix). Use the “Phones” bus to listen to both USB return and your mics. The “Phones” bus on this model is controlled by the “Phones” level knob and includes a blend of the Main Mix and the 2-Track input. By leaving USB out of the Main Mix, your remote caller will only hear your local mics.

Zoom and Riverside.fm are popular choices; Riverside offers built-in local recording for each participant, which simplifies backup recording.

Recording the Interview

Once everything is configured, it’s time to capture audio. Always record locally whenever possible to ensure the highest quality.

Recording Software

Use your DAW or a simple recorder like Audacity or GarageBand. Set the input device to your mixer. Arm a stereo track or two mono tracks (one for host, one for guest if you have separate mixer outputs). Press record and ask your guest to do the same (if they can record locally on their end). For multi-track recording, you may need a mixer that outputs multiple channels via USB, such as the RØDECaster Pro II or Behringer Xenyx UFX series.

Monitoring Levels in Real-Time

Keep an eye on the mixer’s main meters and your DAW’s waveform. Adjust the host’s gain or the guest’s incoming level via the mixer’s USB return level (if available). Ideally, levels should sit around -6 dB to -12 dB with peaks no higher than -3 dB. This provides headroom for post-processing without clipping. If your DAW shows a waveform that’s too small, increase the gain on the mixer’s USB output level (or the channel’s line gain for the USB return).

Backup Recording

Always record a backup in the conferencing software (e.g., Zoom’s local record feature). If your mixer or computer fails, you’ll still have something to edit. For critical interviews, consider a separate portable recorder connected to the mixer’s tape output (RCA jacks). The Zoom H5 or TASCAM DR-40 can serve as a reliable backup recorder.

Double-Ender Technique

For the best audio quality, ask your guest to record themselves locally using a free tool like Audacity or QuickTime Player. They can then send you the raw file after the interview. This gives you two pristine tracks to edit and mix. Guide them with a short setup instructions video or document to ensure they record at appropriate levels.

Post-Recording Workflow and Troubleshooting

After the interview, you’ll have a clean multitrack (from the mixer). Here’s how to polish it.

Editing

Align the tracks if necessary (use the waveform peaks from the mixer’s USB stereo mix or the conferencing software’s file as a guide). Use EQ to match the host and guest voices (e.g., subtract low-end rumble below 80 Hz, add a slight presence boost at 3-5 kHz). Apply a compressor to reduce dynamic range; start with a 3:1 ratio and adjust threshold so gain reduction rarely exceeds 6 dB. Use a noise gate to silence gaps between speech; set the threshold low enough to catch breaths but high enough not to cut off quiet words. A limiter on the master bus prevents clipping when exporting—set the ceiling to -1 dB for streaming-friendly levels.

Common Issues and Fixes

  • Feedback / echoes – Double-check mix-minus routing. Ensure the remote caller’s audio is not being sent back to them. In Zoom, you can also check “Original Sound” settings to avoid double processing.
  • Distorted recording – Reduce input gain on the mixer. Make sure the mic preamp is not clipping. Also check that the USB output level is not set too high in the mixer’s settings. In your DAW, ensure the track’s fader is at 0 dB and not boosting a hot signal.
  • No sound from remote caller – Verify the USB cable is fully connected. Check that your computer’s audio settings use the mixer as the default playback device. On the mixer, ensure the USB return channel is not muted. Also confirm that the conferencing software is recognizing the mixer as a valid speaker output.
  • Headphone mix too loud or quiet – Adjust the Phones level, but also check the dedicated return level knob (often labeled “USB” or “2-Track”) on the mixer. Some mixers also have a balance control between the Main Mix and the USB return in the headphones.
  • Latency – If the remote caller hears a delay, reduce buffer size in your DAW or use direct monitoring on the mixer (if available). Keep your internet latency low by using a wired connection and closing bandwidth-intensive apps.
  • Background noise on host track – Use a noise reduction plugin like iZotope RX or built-in tools in Audacity to clean up room tone or electrical hum. For persistent issues, consider an inline noise gate or a better microphone.

Final Tips for a Professional Remote Setup

  • Test the entire chain at least 30 minutes before each interview. Record a short test clip, play it back, and adjust. This also ensures your guest’s setup is working.
  • Use a single pop filter for each mic. Position it 2–3 inches from the microphone capsule. A windscreen can also help with breath pops.
  • Minimize background noise: turn off fans, close windows, and silence phone notifications. Consider acoustic treatment like foam panels or blankets to reduce reverb.
  • Encourage your guest to use a headset and a quiet room. If they have a decent microphone, ask them to record locally as well for backup. Provide them with a simple checklist: close windows, turn off notifications, use a wired internet connection.
  • Keep a printed cheat sheet of your mixer’s settings (gain levels, EQ positions, USB button status) so you can replicate the setup quickly. Take a photo of the mixer settings after a successful test for reference.
  • Invest in a power conditioner or surge protector for your mixer and computer to prevent power noise and protect equipment.

With the right mixer and careful configuration, remote interviews can sound as good as in-studio conversations. Invest time in your workflow, and your listeners will thank you. For further reading, learn more about mix-minus setups from Podcast Insights or explore the RØDECaster Pro II for an all-in-one solution.