High pitched random noise when using multichannel sequences

Report · Nov 17, 2017

TL;DR version - strange noises introduced when doing mix & stems outputs

————

Multichannel sequence with outputs fed by submixes (ie 1.Dialogue, 2.Effects, 3.Music & 4DME) so that Master outputs 1&2 = Full mix (from 4), 3&4 = Fx(from 2) etc

NB the subs are fed direct from timeline tracks, rather than via sends

Sub 1 has a compressor plug-in and Sub 4 a compressor as limiter

Master bus has 2x PPMulators (for PPM & Loudness)

I can edit, with clean audio, monitoring A1&2 but the other master tracks will display non existent levels (eg full modulation when track is silent). Monitoring those channels reveals some kind of high pitched distorted noise. This noise is apparent on export. A restart will temporarily cure, so my workaround has been to restart before export.

This week I had a studio panel with 5 seperate mics which I kept on discrete timeline tracks, and wanted to output those clean on tracks 9-13.

To achievethis I used more subs but fed them as sends from the timeline tracks

The result was an unholy racket on outputs 1&2. So I abandoned ship on that plan.

I will submit this as a bug but interested if anyone else is havi similar issues? I’m on 2017.0.2 Thanks

Report · Nov 20, 2017

Here's an example of the problem, apparent when using (Tube modelled, multiband, single band compressor, de-esser, dynamics processing, hard limiter) effects on a submix bus when 2 busses exist and are routed to (even if routing volume is -infinity). Also apparent in 2018.0

Dropbox - PROBLEM_2017.1.2.zip