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author | Matthew Jordan <mjordan@digium.com> | 2013-02-28 16:56:20 +0000 |
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committer | Matthew Jordan <mjordan@digium.com> | 2013-02-28 16:56:20 +0000 |
commit | 62f7acfac6e248ff0087e15a058ea575cd78e05c (patch) | |
tree | 7ab16091012adac5075dc1c6dc408202268e3679 /UPGRADE-11.txt | |
parent | de9068129364a9c1e8766d3d10f027054a091b4d (diff) |
Let channels joining a MeetMe conference opt out of the denoiser
For some channel drivers, specifically those that have a varying rate in the
number of audio samples, the audio quality for a MeetMe conference can be
exceedingly poor. This is due to a unilateral application of the DENOISE
function in func_speex to channels joining the conference.
The denoiser function in the speex library is initialized with the number of
audio samples in each sample that will be provided to it. If the number of
audio samples changes, the denoiser has to be thrown away and re-initialized.
While this could be worked around by removing func_speex, that doesn't help
if you actually use the denoiser with other channels on the system.
This patches does the following:
* Checks for the presence of func_speex as opposed to codec_speex when
determining if the DENOISE function is present (which is where the function
is actually implemented)
* Adds an option to MeetMe 'n' that causes the denoiser to not be applied
to a channel when it joins. This keeps the current behavior the default, but
let's users disable the denoiser if it causes problems on their system.
Review: https://reviewboard.asterisk.org/r/2358
(closes issue AST-1062)
Reported by: Thomas Arimont
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Merged revisions 382227 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 382230 from http://svn.asterisk.org/svn/asterisk/branches/11
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382232 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'UPGRADE-11.txt')
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