Loud noises instead of song (Mac OS)

[prismflasher]

I had song select open and had the audio outputting through my laptop's speakers. I switched songs to https://osu.ppy.sh/beatmapsets/26198#osu/88529 and suddenly the sound consisted of loud, glitchy noises rather than the beatmap audio. Playing the beatmap audio from the webpage did not produce these noises. I am running Mac OS 10.13.6 and 2018.1023.0 of Lazer. I don't know if switching beatmaps would've fixed anything, because my first impulse in my panic and fear was to close Osu.
runtime.log
performance.log
network.log
debug.log

[smoogipoo]

Can't replicate here, does it happen a second time around?

[prismflasher]

Hm, I really don't want to try, since my sound (through the external speakers, not through headphones) was broken until I rebooted afterwards, and it really and truly freaked me out since I'm very sensitive to sound. I did remember something that might be relevant, though: I had turned on one of the difficulty mods newly introduced in lazer to try it out, and this happened while I was trying to decide on a song to play through.

[smoogipoo]

Have tried with all of DT, NC, HT and DC mods, all sound fine to me. Can you turn down the sound and test? Or turn off external audio and record it? Hard to determine the nature of the issue without an example...

[prismflasher]

I tried launching it again and now the app is just flat out crashing on launch. (Looking at the logs from the incident that caused this issue (specifically runtime.log), though, I do notice that it was making some very weird claims about what beatmap was selected. Is that maybe related to the issue?)
(New logs, since it's now crashing on launch:)(I've also saved the crash log generated by the OS, though I'm not entirely certain it's a good idea to post it)
debug.log
network.log
runtime.log

[smoogipoo]

The crash mentioned will be fixed in the next release.

[peppy]

@Mintww could you please report back on how things are in the latest release?

[luaneko]

I've been able to reproduce this issue since I got a MacBook and it sure freaks the hell out of me every single time. After this happens both internal speakers will be significantly degraded in quality, weakened bass and reduced volume until a full system restart. It does not happen when system volume is set at zero.

It seems to happen mostly when beatmaps are rapidly changed in song select. However the game does not crash.

MacBook Air 2018 with i5 running Mojave and osu!lazer 2018.1219.0

https://streamable.com/ulj7j

runtime.log

[peppy]

Thanks for the video repro, this helps a lot. @Tom94 also mentioned experiencing this. We definitely need to get this resolved ASAP because that's pretty damn scary.

I'm leaning towards this being a bass library level issue as it looks to be bypassing the volume controls completely (which probably rules out a badly initialised audio buffer?)

[peppy]

@phosphene47 Could you please test the attached dylib (if you can't compile you can just replace the release build's files inside the app bundle)?

On our end it would seem this fixes the bahviour

libbass.dylib.zip

[luaneko]

Nope, this did not fix it. Downloaded the latest build and replaced Contents/MacOS/libbass.dylib with the file you attached unzipped.

Tested on the same machine and the same environment that I specified last time. Reproduced by rapidly alternating beatmapsets in song select. I didn't take a video this time, but I will post one if necessary.

[EmiyaBestBoy]

Can you elaborate more on full system restart? Do you mean factory reset?

[prismflasher]

A reboot (rather than just logging out or similar). However, from the issue you were linked from, it looks like a few unlucky people may have their speakers actually fried. If your hardware is fine, turning the computer off and then on again should fix the issue.

(Also, I'm sorry for not reproducing. I couldn't at the time I was prompted to try again and forgot until it had already been reproduced.)

[EmiyaBestBoy]

Mine looks like it’s permanently fried...
Well time to walk to the Apple Store!
They’ll probably replace it for free I’m still under the 14 days thing.

[peppy]

@Mintww are you on discord? i'd like to throw you some test builds so we can iterate on this quickly.

[peppy]

or @phosphene47 for that matter

[EmiyaBestBoy]

By the way I was using a MacBook Pro 15 inch 2018.

[peppy]

@Toybonnie1234512341 do you still have the broken machine? if so maybe you can help with some quick testing. else could you please leave feedback on how apple responded for anyone else potentially affected by this?

[EmiyaBestBoy]

I’m already in the process of returning it so I’m afraid I can’t help.

[peppy]

Could anyone who has confirmed they can test this without damaging hardware please test this build:

https://www.dropbox.com/s/t54pyajvtnejxv0/osu%21-no-fx.app.zip?dl=0

Note: doubletime/halftime will not work

[peppy]

@Mintww @phosphene47 please test if you can.

[luaneko]

didn't help. in fact, it gets reproduced immediately on launch before even getting to SongSelect.

[peppy]

@phosphene47 this should be fixed in the new build. please test.

[peppy]

Tentatively closing. Please comment if this still happens post 2019.131.0.