[fixed]Brickwall limit to master NOT work when normalize is checked

wastee · 11-10-2025, 11:05 AM

Project contains: One track, with a click source at +20dB gain (will clip), no FX or fader adjustments.

Render settings: Normalize to -14 LUFS-I (yes, still clip before limit), Brickwall limit peak to -1 dB (should limit to -1).

Issue: In the render dialog, when both "Normalize" and "Brickwall limit" are checked with "Limit to master mix" selected, brickwall limit does not work. Brickwall limit seems to be ignored.

The "Brickwall limit" works when checked alone with "Limit to master mix" selection (without Normalize). The other two selections in "Brickwall limit" works correctly even with "Normalize" enabled.

REAPER version: 7.52

schwa · 11-10-2025, 11:21 AM

Confirmed, fixing, thanks for the report. Note that the bug only occurs when rendering the master mix, not when rendering stems or media items, etc. I know that your example was simplified (and helpful because it was simplified), but in the example project, 'brickwall to master mix' is equivalent to 'brickwall each file separately', and the latter does work correctly.

wastee · 11-10-2025, 11:34 AM

Thanks, Schwa. Your explanation is very clear. I forgot to specify the render source, and I'm glad you noticed.

11-10-2025, 11:05 AM	#1
wastee Human being with feelings Join Date: Mar 2015 Location: Mainland China Posts: 193	[fixed]Brickwall limit to master NOT work when normalize is checked Project contains: One track, with a click source at +20dB gain (will clip), no FX or fader adjustments. Render settings: Normalize to -14 LUFS-I (yes, still clip before limit), Brickwall limit peak to -1 dB (should limit to -1). Issue: In the render dialog, when both "Normalize" and "Brickwall limit" are checked with "Limit to master mix" selected, brickwall limit does not work. Brickwall limit seems to be ignored. The "Brickwall limit" works when checked alone with "Limit to master mix" selection (without Normalize). The other two selections in "Brickwall limit" works correctly even with "Normalize" enabled. REAPER version: 7.52 Last edited by wastee; 11-10-2025 at 10:53 PM.

11-10-2025, 11:21 AM	#2
schwa Administrator Join Date: Mar 2007 Location: NY Posts: 17,906	Confirmed, fixing, thanks for the report. Note that the bug only occurs when rendering the master mix, not when rendering stems or media items, etc. I know that your example was simplified (and helpful because it was simplified), but in the example project, 'brickwall to master mix' is equivalent to 'brickwall each file separately', and the latter does work correctly.

11-10-2025, 11:34 AM	#3
wastee Human being with feelings Join Date: Mar 2015 Location: Mainland China Posts: 193	Thanks, Schwa. Your explanation is very clear. I forgot to specify the render source, and I'm glad you noticed.