[Issue]My laptop is producing a strange noise when I play with Repro-5.(recording attached)

[sinemotor]

Hi,

Ok so here is a weird issue I’ve been dealing with Repro-5 since its release actually but I didn’t really payed attention until now. Sorry in advance if it’s not the right place. Maybe other people have the same issue…

Basically what happens is that when I play notes with the synth, my laptop starts making some strange noises, kinda like electrical noises from the motherboard and inside my headphones (sorry I don’t really know how to describe it properly with words so I did a recording of it - see below). It’s a quiet noise but louder than the usual MacBook Pro fan noise.

I can hear that noise from 2 sources : my headphones (directly plugged in the laptop) and when I come nearer to my laptop keyboard as well.

more details :

- Repro-5 is the only virtual instrument I have which causes this noise (it doesn’t happen in Repro-1 or Diva for instance)
- I believe I just have the noise when the Multicore option is ON. But immediately when I turn Mcore off, the noise disappears.


My setup :

MacBook Pro (Retina, 15 inches, mid-2014)
i7 2,8 GHz / Intel Iris Pro 1536 Mb
macOS High Sierra 10.13.6

My laptop never had any hardware issue. I take care of it and I don’t often carry it around. It still feels like a new laptop.

DAW : Ableton Live 10.0.6 (also had the issue with v9)
I'm using a Audio Technica ATH-50 headphone / No external Audio Interface.


Here is the recording : https://clyp.it/pajhxnun

- Recorded directly from my laptop Mic so it’s far from perfect (a lot of background noise) and I boosted the gain so you can notice that weird whistling noise. As I said that noise is quiet but noticeable. Also notice how it distinctly stops in the end (@ 00:26)

- I layered it with a bounce of a Repro-5 MIDI clip (the preset is XS Analog Chimes from the factory library) to have more context. The Multicore option was ON and I didn't turn it off at the end.


I really wonder what this can be. Let me know if you need more details on this issue.

Thanks!

[sinemotor]

Edit : I'm using Repro-5 Rev 6794. VST2 Mac64. The AU causes me the same issue.

[nevis]

Can only listen at my laptop speakers right now, but it sounds like CPU whine. Which would be supported by your "I can hear it near the keyboard" comment.

[Funkybot's Evil Twin]

It sounds like a squeaky fan. Remember: RePro is super CPU intensive. Sounds like your processor is getting taxed, and the fans are kicking in, but the fan has a bit of a squeak to it.

I don't know what others might suggest, but if you have an Apple Store or something nearby, I'd probably schedule an appointment at the Genius Bar and show them to see if the fan needs replacing or servicing.

[sinemotor]

It sounds like a squeaky fan. Remember: RePro is super CPU intensive. Sounds like your processor is getting taxed, and the fans are kicking in, but the fan has a bit of a squeak to it.

I don't know what others might suggest, but if you have an Apple Store or something nearby, I'd probably schedule an appointment at the Genius Bar and show them to see if the fan needs replacing or servicing.

Sorry, I should have mentioned that the fans stay really quiet. I can play with Repro-5 for a long time and the fans stay at their lowest noise levels. 2014 Macbook Pro stay pretty quiet in that regard.

What you hear in the audio file is the noise floor of the mic and the squeak noise on top of it. I recorded it with my laptop mic and then added a 20+ dB FS gain to "normalise" the volume of the .wav file. I know it's a crapy recording because in reality you would barely hear the fans running as they are so quiet. It's silent but you would be able to hear the strange squeaky noise.

I have this noise into my headphones as well.

[EvilDragon]

The fans can stay quiet but their bearing can be squeaky regardless.

[Ranoka]

Is the strange noise in your rendered audio from your DAW? If it's not then it's not an issue with U-he's plugins.

Are you using a USB DAC, like a Focusrite Scarlett or a FiiO headphone amp? That should prevent interference form the motherboard being picked up by your headphones, which can happen if you plug them in directly to the laptop.