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Fixed in Unity 5.4.0



Found in


Issue ID




Audio Low Pass Filter doesn't work on Audio Listener




Priority: 3Not yet prioritized for a release


Severity: 1Crash, freeze, data loss, work stops

Audio Low Pass Filter does not work correctly on Audio Listener while on Audio Source it is still working correctly.

Steps to reproduce:
1. Open attached project's scene "BugScene".
2. Enter game mode.
3. Set "Audio Source" game object's Audio Low Pass Filter's Cutoff Frequency to 0 - audio mutes.
4. Disable Low Pass Filter on Audio Source.
5. Try changing "Main Camera" game object's Audio Low Pass Filter's Cutoff Frequency to 0.
6. Sound is still playing.

Reproduced on Windows 10 x64 with: 5.2.2f1 (f5cc61d36935), 5.2.0f3 (7708b7092ef5)
Regression from 5.1.4f1 (36d0f3617432)
Fix was tested on 5.4.0b3 (2ff318157d6c)

Comments (4)

  1. 39efaeb1735af2cc1ae16a6b07d2a55f?d=mm


    Oct 15, 2018 02:52

    still not fixed in version 2018.2.10f1

  2. 7dae2c5a9cb84364ec5a5eacb2688995?d=mm


    Dec 16, 2016 20:55

    No, actually, the issue is not fixed. I'm using 5.5 and the Low Pass Filter still isn't working at all. Maybe you could actually check with customers before deciding on your own to declare the issue "fixed"?

  3. 298fc6eaaeb29e2d66eb77fbf809427f?d=mm


    Mar 30, 2016 13:36

    Is this feature planned to be fixed?

  4. Be70849f019bb4ce014fd373ab5e8a70?d=mm


    Dec 10, 2015 09:31

    We've tested 5.3 and Audio Low Pass filter is still not working correctly; Constant low pass available, but adjusting the Cutoff Frequency have zero affect.

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