AllBugsFeaturesChangelogBountiesSearchNew post
Sign in with Fluxer
Bugs

Fluxer Ignores Third Party Audio APOs

(#3055) Bug Open: Confirmed Priority: P2 desktop
by StarzSpirit

Reproduction steps

  1. Setup Equalizer APO with RNNoise.
  2. Test microphone in Fluxer.

Observed behaviour

The RNNoise APO is entirely ignored and input audio is pulled straight from the hardware source ignoring any APOs in the middle.

Build information

Canary Desktop 2026.602.31138, Web 2026.605.11941, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US

Platform

Windows

Details

Expected behaviour There should be no background noise.
APO.wav | 1.7 MB Link to APO.wav
WithoutAPO.wav | 3.4 MB Link to WithoutAPO.wav

Merged posts

These posts were merged into this one. Their comments are now part of the conversation below, marked with where they came from.

Merged from #3180 Native/Chromium clients bypass Windows audio effects (Equalizer APO) on microphone input, web app in Firefox does not

Dg

Report details

Reproduction steps

  1. In App mic settings: All toggles for mic settings in custom/disabled, except noise suppression which is set to standard
  2. On Windows, apply Equalizer APO on a capture device and add an effects (eg. RNNoise).
  3. Confirm the filter works correctly system-wide (test in Windows, Discord, or Firefox-based apps).
  4. Open Fluxer native desktop app and speak while triggering background noise.
  5. Open Fluxer in a Chromium-based browser and repeat.
  6. Open Fluxer in Firefox, join a voice channel, repeat.
  7. Compare whether the APO filter is audibly applied to your mic in each case.

Observed behaviour

  • Fluxer native app: raw mic, system audio effects (Equalizer APO) are bypassed entirely.
  • Fluxer web app in Chromium (Chrome/Edge): raw mic, same bypass.
  • Fluxer web app in Firefox: mic correctly passes through the system effects filter.

Build information

Canary Desktop 2026.602.31138, Web 2026.605.11941, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-GB

Platform

Windows, Web

Details

Expected behaviour The mic signal that reaches the voice channel should include any system-level audio processing applied via Windows standard audio effects pipeline (APOs), consistent across all Fluxer clients, same as how the native Discord client and Firefox both respect these effects.

3 comments

Sign in with Fluxer to comment and vote.
Comment by Fullest
FullestReviewer 1 vote
Status changed from Needs triage to Confirmed
Confirmed by Mizarc, I'm just changing the status.
Permalink
Comment by Mizarc
MizarcMod 2 votes
Can Reproduce Fluxer does not appear to support the default APO option, but LFX/GFX works as a workaround. Not ideal of course, as Discord supports the default settings. - Canary Desktop 2026.1006.171724, Web 2026.1006.190110, Windows 11 10.0.26200 (x64), Electron 44.4.1, Chrome 152.0.7977.78, Node 24.21.0, Locale en-GB
Permalink
Comment by Octavia
Octavia 1 vote Merged from #3180
+1, same issue here, present on both the old version and the current Canary version as of writing this. Canary Desktop 2026.1004.4043, Web 2026.1006.1600, Windows 11 10.0.26200 (x64), Electron 44.4.1, Chrome 152.0.7977.78, Node 24.21.0, Locale en-GB
Permalink