Mono sounds --> Forced to right channel?

When importing some 16-Bit PCM sounds in our project (example: Freesound - "Hard Female Footstep (3)" by OwlStorm) they are forced to the right channel - even when previewing them in the asset browser.

Engine: 4.6.0 (GitHub-Version)

Hello ,

I just tested the sound you linked on the 4.6 GitHub version and was not experiencing the same thing you are reporting.

Sometimes there can be a small thing you might be overlooking. Have you checked to see if your audio jack is plugged in completely? This can cause your sounds to come out of a single source.

Also have you tested this on multiple different mono sounds, or just the one you linked?

Cheers,

Hi Andrew,

thank for your quick answer. Yes, it affected a whole bunch of different mono sounds. I used a USB headset, so no problems with a headset jack, stereo sounds were played on both channels. The properties of the sounds looked like this:


Right click and play → Only at right channel instead of using both.

Here is the uasset file: (EDIT: Not allowed to upload this)

We had a presentation on friday where they only used only the left channel and linked them to both speakers. We could hear no footsteps and none of the other mono sounds which were played back with playSoundAtLocation().

I temporary fixed this upmixing all the sounds to pseudo-stereo (just copying the channel).

Unless I can reproduce your issue on my end there is not much further I can move forward as far as testing. It sounds like you have a temporary fix for this issue by creating the ‘pseudo-stereo’ sounds as you mentioned.

Were you not able to hear the sound properly if you just right-clicked the ‘Sound Wave’ and pressed ‘Play’?

Cheers,

No, the sound plays only at the right channel in the editor.

Hey again ,

I looked further into why you might be experiencing your issue with sound being produced from one channel, and found some helpful information within the documentations page about mono sounds and their respective channels.

Audio Files Documentation

Let me know if you discover the root of your issue. My guess is that your mono sound is tagged with a specific naming convention and is being forced to play out of a specific channel. Let me know if this is the case!

Cheers,

That’s a very interesting idea, thank you. But it’s not the case here. But it’s ok, I just used the workaround with pseudo-stereo which is ok.

Alright, sorry we couldn’t find the exact answer you were looking for, but if you have any other questions or need help let us know.

Thank you,