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SPECIFICTION
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MicMixer

github.com

Free plan Open source Windows
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Spec score 8.2 #8 of 30 in Audio Enhancement Software

What it is

MicMixer is a free, open-source Windows application that combines a microphone, music, and an optional voice changer into one virtual microphone for games, Discord, and other voice-chat software. Push-to-talk can gate the outgoing mix, while a setting allows music to continue during microphone gating. A configurable hotkey switches between normal and modified microphone modes, with an optional release delay. Music can come from local MP3 files, a YouTube link downloaded to MP3, or audio captured from a running application such as Spotify. A secondary output sends the complete mix to hardware that OBS Studio or Streamlabs Desktop can capture. MicMixer also provides a click-through status overlay and a local webpage usable as a browser source. It requires a virtual audio cable, with VB-CABLE recommended by the maker. The app supports Windows 10 and 11 on x64 and is self-contained.

Spec sheet

What it does
MicMixer combines microphone audio, music and voice effects into one virtual microphone for games, Discord and other voice apps.Read 15 Oct 2026 · github.com
Purpose
MicMixer mixes a microphone, music, and optional voice changer into one virtual microphone for games, Discord, and other voice chat apps.Read 9 Oct 2026 · github.com
Intended users
The maker describes use cases including FiveM players, voice chat users, and people streaming or recording with OBS or Streamlabs.Read 9 Oct 2026 · benjibutten.github.io
Privacy
The app requires no account, advertising or analytics, and keeps audio processing and settings on the user's computer.Read 15 Oct 2026 · benjibutten.github.io
Support
The maker directs questions and privacy requests to MicMixer's GitHub issue tracker.Read 9 Oct 2026 · benjibutten.github.io
License
Current source is Apache License 2.0; releases through v2026.7.3 remain under the earlier MIT terms.Read 15 Oct 2026 · github.com
Application capture
MicMixer can capture audio from a running application such as Spotify through Windows process-loopback APIs.Read 15 Oct 2026 · github.com
Contributor
Project documentation credits Pixlexi with use cases, testing and feedback.Read 15 Oct 2026 · github.com
Distribution
The maker offers a Windows installer, a ZIP version, and installation through Windows Package Manager (winget).Read 9 Oct 2026 · benjibutten.github.io
Independent catalog entry
Wingetly lists BenjiButten.MicMixer version 2026.8.3 as an x64 ZIP package and records no known CVEs in its best-effort check.Read 15 Oct 2026 · wingetly.io
Installation choices
The maker provides an installer, a ZIP archive and a Windows Package Manager command.Read 15 Oct 2026 · wingetly.io
Limit: external capture
Application capture depends on Windows process-loopback support and the selected application actively producing audio.Read 15 Oct 2026 · github.com
Limit: overlay fullscreen
Exclusive-fullscreen applications may prevent the desktop overlay from appearing.Read 15 Oct 2026 · github.com
Limit: unsigned releases
The current Windows executable releases are unsigned, so Windows SmartScreen may warn or Smart App Control may block them.Read 15 Oct 2026 · benjibutten.github.io
Limit: virtual audio setup
Users must configure a virtual audio cable and select its output in the receiving game or chat application.Read 15 Oct 2026 · github.com
Limit: Windows only
The published product targets Windows 10/11 x64 and lists no macOS, Linux, iOS or Android version.Read 15 Oct 2026 · wingetly.io
Local monitoring
Music can be monitored through a separate physical playback device with independent volume control.Read 15 Oct 2026 · github.com
Local web endpoint
The stream overlay binds to 127.0.0.1 and exposes status and level data to local clients.Read 15 Oct 2026 · benjibutten.github.io
Maintainer
The project identifies BenjiButten as its maintainer and author.Read 15 Oct 2026 · github.com
Music ducking
An option lowers music while the microphone is active and restores it when speech stops.Read 15 Oct 2026 · github.com
Music library
The built-in player supports MP3 files, multiple folders, search, queues and transport controls.Read 15 Oct 2026 · github.com
Music sources
Music can come from local MP3 files, a YouTube link downloaded to MP3, or audio captured from a running application such as Spotify.Read 9 Oct 2026 · github.com
Network behavior
Release builds check GitHub for updates at most every 12 hours, while media downloads contact the service named by the submitted URL.Read 15 Oct 2026 · benjibutten.github.io
Network use
Release builds check GitHub for updates at most once every 12 hours while the main window is open, and media downloads contact the URL's service.Read 9 Oct 2026 · benjibutten.github.io
Noise gate
The optional gate mutes microphone audio below a threshold to produce digital silence between phrases.Read 15 Oct 2026 · github.com
Overlay
A click-through desktop overlay shows microphone and music states, and the same status is available as a local browser-source page.Read 15 Oct 2026 · benjibutten.github.io
Package mirror presence
The NJU winget-source mirror lists BenjiButten.MicMixer with a 2026-10-06 index timestamp.Read 15 Oct 2026 · mirror.nju.edu.cn
Praise: free distribution
The independent Wingetly listing describes MicMixer as Apache-2.0 software with no installation charge.Read 15 Oct 2026 · wingetly.io
Public API
The published documentation describes local overlay and named-pipe integrations but does not describe a cloud API or SDK.Read 15 Oct 2026 · benjibutten.github.io
Push-to-talk
A global hotkey gates the outgoing mix and can switch between normal and modified microphones.Read 15 Oct 2026 · github.com
Release delay
A configurable delay keeps the modified microphone active briefly after the hotkey is released.Read 15 Oct 2026 · github.com
Release integrity
Official releases are built by GitHub Actions and ZIP archives include SHA-256 checksums.Read 15 Oct 2026 · benjibutten.github.io
Release security
Current releases are unsigned; the maker says official Windows releases are built from the public repository using GitHub Actions and accompanied by SHA-256 checksums.Read 9 Oct 2026 · benjibutten.github.io
Repository topic listing
GitHub's public audio-mixer topic lists MicMixer as a C# Windows project and shows it was updated in September 2026.Read 15 Oct 2026 · github.com
Secondary output
A separate output sends the complete microphone-and-music mix to a device that OBS or Streamlabs can capture.Read 15 Oct 2026 · github.com
Self-contained build
Windows release archives include the runtime and normally do not require a separate .NET installation.Read 15 Oct 2026 · github.com
Setup requirement
MicMixer requires a virtual audio cable, and the maker recommends VB-CABLE, which the installer can offer to install.Read 9 Oct 2026 · benjibutten.github.io
StreamDecky integration
The privacy policy documents a same-user local named-pipe control integration called StreamDecky.Read 15 Oct 2026 · benjibutten.github.io
Streaming
A secondary audio output sends the full microphone and music mix to a device that OBS Studio or Streamlabs Desktop can capture.Read 9 Oct 2026 · github.com
Supported system
The app is for Windows 10 or Windows 11 on x64 and is self-contained, so a separate .NET installation is not normally needed.Read 9 Oct 2026 · github.com
System requirements
The application requires Windows 10 or Windows 11 64-bit, a microphone and a virtual audio device.Read 15 Oct 2026 · github.com
Virtual cable dependency
VB-CABLE is recommended and the installer can offer to install and rename its two ends.Read 15 Oct 2026 · wingetly.io
Voice changer
It can use an external modified microphone such as Voicemod or experimental built-in MicMixer voices.Read 15 Oct 2026 · github.com
Voice switching
A configurable hotkey switches between a normal microphone and a modified microphone, with an optional release delay.Read 9 Oct 2026 · github.com
YouTube downloads
Users can paste a single YouTube video link and MicMixer downloads it as MP3 using local yt-dlp and FFmpeg.Read 15 Oct 2026 · github.com

Plans and prices

Free Free Free of charge Windows 10/11 x64 · Requires microphone and virtual audio cable · No paid tier stated Read 15 Oct 2026 · github.com
MicMixer Free Free, open-source Windows app · Windows 10/11 x64 Read 9 Oct 2026 · benjibutten.github.io

Every MicMixer plan and price →

Strong points and limits

Strong points

  • Combines microphone, music, and voice changer
  • Supports push-to-talk gating
  • Captures music from several sources
  • Provides OBS and Streamlabs routing
  • No account, analytics, telemetry, or crash uploads

Limits

  • Requires a virtual audio cable
  • Runs only on Windows 10/11 x64
  • Current releases are unsigned
  • No noise reduction

Who it suits

It suits Windows voice-chat users, FiveM players, and people streaming or recording with OBS or Streamlabs. A virtual audio cable is required.

Verdict

MicMixer provides a focused virtual-microphone mix for Windows chat and streaming workflows. It is free under Apache-2.0, processes audio locally, and offers installer, ZIP, and winget distribution.

Where Specifiction places it

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