[asterisk-users] drop dead fix

[Andrew Latham]

You want to pay attention the low-pass and high-pass filter....  A
step conversion will help you see the issues.  Go halfway first and
look for the change and adjust your filter.


~
Andrew "lathama" Latham
lathama at gmail.com

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On Fri, Oct 15, 2010 at 11:18 AM, Gordon Henderson
<gordon+asterisk at drogon.net> wrote:
> 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
>
>
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