MDL Scratch/Pop Noise, Followed by Glitched Playback

• Jul 4, 2019 - 04:38
Reported version
3.2
Type
Functional
Frequency
Once
Severity
S3 - Major
Reproducibility
Randomly
Status
active
Regression
No
Workaround
No
Project

Steps: Unknown, seemingly occurs at random.

Expected Behavior: Normal playback when using MDL instruments

Actual Behavior: At a random time at the start of a playback, a loud noise is heard, almost as if a disk is scratching, seemingly comprised of MDL-related noises - perhaps overblown snare buzzes or a similar high-frequency scratch. After this happens, a bug or glitch seems to have 'initiated' in the playback of MDL instruments. Notes begin to accent at random, and others are dropped. This is most noticeable in snare and bass parts, although that could be due to snare volume and bass note density (playing split parts with 16th/32nd notes.)

Workaround: Close MuseScore and reopen. The score playback will now be correct until another scratching noise is heard.

I'm reporting this now because it seems to happen more frequently, but I can recall this happening since at least the first MS3 release. For the record, both MuseScore and the MDL extension are up-to-date version-wise.

As stated, this occurs at random, and seems to happen in any score of any size, so long as there are MDL instruments present. Because of this, I have not included a score but can do so if needed.


Comments

Workaround Yes No

This is happening to me too, also in only MS3. MDL is still functional for me in MS 2.3.2. I am also now having problems with the soundfonts themselves, as documented in my own post. I am not sure if these are related occurrences or not.

Where is your volume currently set in Synthesizer? Try reducing the volume in the Synthesizer and mixer and increasing the system volume to return to same volume level.

If not RAM, it could be a volume/clipping issue.