[Asterisk-Users] compression quality of wav voicemail attachments

[Mathew Frank]

> Mark Spencer wrote:
> > Actually I'm considering dropping mp3 codec support from Asterisk (of
> > course, we would still keep the "music on hold" and so on which use
> > mpg123).  The reason is that mp3 is relatively expensive (even in
decode)
> > and isn't really appropriate due to its large frame size and high bit
rate
> > for telephony.
> >
>
>
> I sure wish (and I'm sure there are others in the same boat) that
> something like MP3 could be made an option for the email attachments.
> It seems like it would be very low cost in terms of the implementation,
> and the savings would be enormous.
>
> I have a load of multiple-megabyte attachments in my Inbox right now
> that represent something just over two minutes of voicemail.  I think
> that is horribly wasteful, and where I am right now, on a very
> limited-bandwidth connection, getting those mails is excruciating.

There is another problem with mp3s right now:  licencing costs due to
patents (I am very worried SIP is going that way, actually).
What about Ogg Vorbis instead - which is a newer system with better quality
sound and no patent problems - with just an MP3 import function?

Cheers,
Mathew