[asterisk-users] drop dead fix

[Gordon Henderson]

On Fri, 15 Oct 2010, Danny Nicholas wrote:

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Gordon
> Henderson
> Sent: Friday, October 15, 2010 9:18 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] drop dead fix
>
> On Fri, 15 Oct 2010, Danny Nicholas wrote:
>
>> Hello list,
>>
>>              I am about to have to dump Asterisk in favor of some other
>> VOIP/PBX solution;  the reason?  I have 304 voice prompts recorded as
> 22Khz
>> wav format files that sound like crumpling paper whenever I convert them
> to
>> the 8Khz wav/gsm format required by Asterisk.  I was considering trying
> the
>> G.729 codec, but reading through the specs, I see that the 8Khz conversion
>> is going to dump me into the same pile of dung.  Any body have any
>> suggestions?
>
> Why are you converting them to GSM?
>
> Why not convert them to the technology you're using for your phones and
> trunks? That would be much more efficient.
>
> (If you're using g729 for trunks, then that will sound better as GSM to
> g729 conversion does sound bad)
>
> Or maybe it's your conversion software? What are you using?
>
> Gordon
>
> I did the "proof of concept" recordings as gsm files.  Now that we want to
> actually do a finished product, the gsm recordings don't sound good enough
> to make a viable product.
>
> Here is a sample
> Original file
> http://www.4shared.com/audio/PDGcMDUt/firstmenuwav.html

Seems very quiet to me, but I don't have any tools to meansure it where I 
am right now.

The GSM one didn't sounds too bad either, but are you then listening to it 
after a G729 conversion?

Gordon