Ticket #8568 (closed enhancement: wontfix)
Opened 3 years ago
Last modified 3 years ago
|Reported by:||jyavenard||Owned by:||jyavenard|
|Component:||MythTV - Audio Output||Version:||Unspecified|
Watching the football worlcup? Annoyed with those horns ?
this patch will help.
It is implemented by filtering the frequencies 233, 466, 932 and 1864Hz using a band-stop filter (notch filter)
Was provided the info from: http://www.afterdawn.com/news/article.cfm/2010/06/14/vuvuzela_buzz_ruining_your_world_cup_get_rid_of_it
It is not perfect, but once active, you can finally hear people cheering..
May commit it for convenience, but I feel the bi-quad filters parameters could be improved. If people are willing to tweak a bit, this is done in the file mythtv/libs/libmyth/audiooutpututil.cpp in void AudioOutputUtil::notch_update()
By the way, the methods provided in the above link, don't give IMHO as good results.
How to use it: Go to the settings -> general in the audio section. Activate Advanced Audio and check the Vuvuzela box. Validate all pages to the end.
Now when watching a game, press menu, you'll see an entry "Toggle Vuvuzela Filter"
The vuvuzela filter is disabled by default, and needs to be manually enabled each time
comment:1 Changed 3 years ago by bauner
comment:2 Changed 3 years ago by wagnerrp
comment:3 Changed 3 years ago by jyavenard
comment:4 Changed 3 years ago by MarcT <myrdhn@…>
comment:6 Changed 3 years ago by jyavenard
comment:8 Changed 3 years ago by jyavenard
comment:9 Changed 3 years ago by jyavenard
comment:10 Changed 3 years ago by robertm
- Status changed from new to infoneeded_new
comment:11 Changed 3 years ago by jyavenard
- Status changed from infoneeded_new to closed
- Resolution set to wontfix