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Viewing topic "Yamaha Motif XF7 - monotonous hum from analog outputs"

Posted on: June 28, 2023 @ 01:55 PM
Total Posts:  2
Joined  01-16-2015
status: Newcomer

Hello! I have a problem (I didn’t notice it before).
I have a Yamaha Motif XF7 + Saffire PRO40 audio card.
When I connect this synthesizer to the audio card via analog outputs, I hear a distinct monotonous wide-spectrum rumble.
The volume of the hum does not depend on the volume set on the synthesizer itself, it only depends on the volume of the analog inputs on the audio card.
I also tried to connect to the headphone output on the synthesizer - the same thing.
I tried different cables and different inputs on the audio card - the same thing.
When I connect other synthesizers (Yamaha SY99 and DeepMind 12), there is no such problem.
When I just connect headphones to the synthesizer, there is no problem either (at the same time, the sound volume is very high, that is, it would be impossible not to notice).
What could it be, how to treat it (besides using a coaxial digital output or a built-in Fireware synthesizer)? I just want the analog outputs to be quiet.

I recorded both in amplification mode to better hear the rumble, and in normal mode in parallel with the sound of the instrument on the motif (so that you can roughly hear how it makes noise):
I also uploaded a video analyzer, though there is no sound - Asio is not captured by me, but the spectrum and peak values

UPD! Fixed by changing USB port for Motif MIDI on the my PC :D

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