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Participant
June 27, 2022
Question

Sound is horribly distorted when listening back to recording

  • June 27, 2022
  • 2 replies
  • 598 views

Hello,

 

I am using a PC, Adobe Audition and a Rodecaster Pro to record a multitrack conversation between three people.  When I listen to it afterwards, the sound is horribly distorted about every ten to twenty minutes for about two- five minutes.  I'm assuming that there's some kind of latency problem or interference in the computer (anti-virus or Cloud updating or other processes running), but I don't know how to fix it.  What should I do?  What can I check? 

 

I have a Dell XPS 8940

Windows 10 Pro

x64-based PC

Intel Core i9-10900 CPU @2.8O GHz, 2808 Mhz, 10 cores, 20 logical processors

NVIDA GeForce RTX 2070 

64 GB

I am using ASIO4ALL V2 and the Buffer Size is 1024 and the sample rate is 48000.  The Device List correctly shows the Rodecaster Pro Multichannel. 

For a few months, it was working fine, but in the past month, this problem has been happening every single time I record.  

Is there something I'm doing wrong?  

 

Thank you for your time. 

2 replies

Participant
September 14, 2025

I have the same problem. I am using Audition 2025 with ASIO4ALL, the buffer size is 1024, I use 48ksps, connected to a Scarlett 8-channel mixer (older model) also set to 48ksps, I use 3 mono and one stereo channel. After about one hour, the audio suddenly becomes distorted. I had to exit Audition and restart it, it messed up a live concert recording.

 

I had this happen once before and then avoided it by saving the recording after intermission and restart Audition. Now it has happened again. I assume that has to to with the available cash memory perhaps? Does Audition buffer in memory and if that becomes exhausted starts buffering to the disk? I looked at the total saved file size and it is about 2.7 GB. That is the portion of the recording when the distortions were setting in. I also recorded the rehearsal before that which were 1.7 GB, I paused the recording and restarted it without exiting Audition. 

 

When the distortions happened, stopping the recording and restarting it didn't help. Actually, the audio over the headphones was still distorted after I stopped the recording. So only exiting the program and restarting it and opening the same session made it sound normal again.

 

When looking at the waveform, it looks like there are short intervals of data just missing, maybe under 1 ms or so. This happens at repeated intervals of roughly 370 ms, at which times these dropouts may occur multiple times in short order, until the next 370 ms interval.

 

My laptop is a Windows Surface Laptop 2, with a 512 GB SSD harddrive and 16 GB of memory. I have 160 GB of free disk space.

SteveG_AudioMasters_
Community Expert
Community Expert
June 27, 2022

If you go back and listen to one of the distorted parts again, does it occur in exactly the same place? I'm asking because I've had this very occasionally as a replay artifact. I believe, although I haven't managed to locate the precise reason, that it may well be to do with what happens to the audio stream as it leaves ASIO4ALL. What ASIO4ALL does is to convert the inherently ASIO-based output from Audition back to being something that is streamed through the Windows sound system (which is why it doesn't do much for the latency figures, unlike a 'genuine' ASIO feed, which would reduce them considerably). All it would take at this point would be a sample-rate mismatch that wasn't handled correctly to cause all sorts of mischief.

 

So the first thing to check is whether it's really a replay artifact. If it's a record artifact, then it would clearly show in the waveform visuals, I would have thought. Mind you, the root cause could still be the same...

Participant
June 27, 2022

Yes, it happens at exactly 25 minutes in.  When I record the same session on the Rodecaster Pro on an SD card and play it in Adobe, there is no distortion at all.   It's very strange.  

 

Participant
June 27, 2022

Here is a screenshot of the waveform visuals - it happens exactly at 25 minutes (in two separate recordings I made, one this morning and one last night) and I don't see anything unusual.  Am I looking at the wrong thing?