Distorted Sound with strange echo of input // Musescore 3 // Manjaro Linux

• Feb 21, 2019 - 22:57
Reported version
3.0
Type
Functional
Frequency
Many
Severity
S2 - Critical
Reproducibility
Always
Status
active
Regression
No
Workaround
No
Project

When using note input, or playing a sheet, the audio comes out distorted and with an echo.
Musescore 3, default settings, running Manjaro Linux. No difference, wether running PulseAudio or ALSA with different buffer settings.

System: Kernel: 4.19.23-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.2.1 Desktop: KDE Plasma 5.15.0
Machine: Type: Laptop System: HP product: HP Pavilion Laptop 15-cw0xxx
CPU: Topology: Quad Core model: AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx bits: 64
Audio: Device-1: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio


Comments

Confirming problem with distorted and echo sound, using pulseaudio. Workaround is to restart program two-three times.
I've only looked at jackd (using pulse due to other reasons), and could only see a problem in the jackd procedure callback, perhaps related. The procedure will do memory intense operations at initial play in the time-critical process.

I don't currently use Linux.
But if you ask me as a sound technician (instead of Linux user): There seems to be loop-back somewhere. (Such as redirecting the output back to the input).
Make sure the output in the I/O is directed to a playback device: API [XYZ] Device: [output-device]