audio low level or distorted

Question

audio low level or distorted

dasoe opened this issue 5 years ago · comments

Hi jvcleave,

thanks for this great addon I am heavily using for years now!
I just upgraded a much used media player that w e developed for use in a museum. New version based on raspbian stretch, OF 0.10 and new (release version) of ofxOmxPlayer. All works very well - except Audio (HDMI) starts to be distorted when volume exceeds 0.5 %. I also did direct compare old an d new player: audio on new player is quite low when not distorted.
Might this be a problem in ofxOMXPlayer or did I oversee something?

thanks for any hints
oe

Jason Van Cleave · Answer 1 · Mon Jan 14 2019 15:32:38 GMT+0800 (China Standard Time)

not really sure - I currently don't have a way to check against the old

my guess would be to look around here:

https://github.com/jvcleave/ofxOMXPlayer/blob/master/src/ofxOMXPlayerEngine.cpp#L1098

dasoe · Answer 2 · Mon Jan 14 2019 18:41:43 GMT+0800 (China Standard Time)

I see, thank you. I think leveling is not so much a problem. Rather the maximum possible volume I can get without disturbances seems quite low to me. A HDMI Screen with audio I used before is near to unusable now. But leaving old/new comparison aside: am I the only one out there with the problem "low volume or disturbances"? Might as well be a global jessie->stretch problem, I just don't find anything...

thanks for any hints
oe

P.S.: example-playback-controls is perfect to see the problem. 12 db (Volume 0.6) is working, next step already starts giving disturbances in loud moments.

dasoe · Answer 3 · Thu Jan 24 2019 19:56:26 GMT+0800 (China Standard Time)

I think after some chekcing this problem is related to the core. Not sure if it would be a good idea to restrict the maximum volume in ofxOmxPlayer due to a problem outside, that might be temporary (so that we later can not use full power).
Also no one else reported. So closing the issue. Thanks!