How to Route Amplitude Soundboard Audio to Other Applications or Input Devices

Amplitude Soundboard can play clips through multiple output or input devices on your computer, which is what lets other programs (voice chat, streaming software, recording tools) receive its audio as if it came from a microphone. The catch is that the operating system needs a virtual audio device to bridge the two: on Windows you use Virtual Audio Cable, on macOS you use BlackHole, and on Linux you route through PulseAudio commands. The steps below cover the general workflow and the per-platform specifics.

The core idea

A soundboard normally plays to your speakers, which other applications can't "hear" as an input. To fix that, you install a virtual audio device that appears to the system as both a playback target and a recording source. Amplitude Soundboard plays into that virtual device; the other application selects the same virtual device as its microphone/input.

Because Amplitude Soundboard supports multiple output and input devices with global and per-clip volume settings, you can keep your normal speakers active for yourself while simultaneously feeding the virtual device that your chat or streaming app listens to.

General workflow

1. Install a virtual audio device for your platform (see below).
2. In Amplitude Soundboard, open the audio/output settings and select the virtual device as an output (or input) target.
3. In the receiving application (Discord, OBS, a DAW, etc.), set its microphone/input to the same virtual device.
4. Play a clip and confirm the receiving app shows level activity.
5. Adjust global or per-clip volume if the signal is too loud or too quiet.

Platform-specific setup

Windows — Virtual Audio Cable

Install Virtual Audio Cable, which creates virtual line devices. Then:

• Set Amplitude Soundboard's output to the Virtual Audio Cable line.
• In your target app, select the corresponding Virtual Audio Cable device as the input.
• If you also want to hear the clips yourself, enable monitoring on the virtual line or route it to your real output.

macOS — BlackHole

Install BlackHole, a free virtual audio driver. Then:

• Set Amplitude Soundboard's output to BlackHole.
• In the target app, choose BlackHole as the input device.
• To hear the audio yourself at the same time, use a Multi-Output Device in Audio MIDI Setup that combines BlackHole with your speakers.

Linux — PulseAudio commands

Linux routing is done through PulseAudio rather than a separate driver install. You create/route to a virtual sink and point applications at it using PulseAudio commands (for example, loading a null sink and moving streams to it). Then select that sink's monitor as the input in the receiving application.

Verifying it works

• Play a clip in Amplitude Soundboard and watch the input meter in the receiving app — it should move.
• If there's no signal, check that both apps reference the same virtual device name.
• If the receiving app hears you but not the soundboard, confirm the soundboard's output wasn't left on your default speakers.

Common snags

• No virtual device installed: Amplitude Soundboard can only route to devices the OS exposes, so install the platform tool first.
• Feedback loops: Routing a virtual device back into itself or into your mic can cause echo — keep the soundboard output and your real mic on separate paths.
• Hearing nothing locally: A virtual device usually doesn't play to speakers by itself; add monitoring or a multi-output setup if you want to hear clips too.

Quick reference

Amplitude Soundboard is free and open-source, available for Windows, Linux, and macOS, and supports AAC, AIFF, ALAC, FLAC, M4A, MP3, MP4, OGG, OPUS, and WAV files — so whatever clip format you're routing, it should load without conversion.