[asterisk-users] Listening to Allison voicemail prompt on SIP phone causes [pop] sounds.

[John Novack]

shadowym wrote:
> Ok so I'm not going crazy then.
>
>   
The jury is still out on that issue!

John Novack

> I filed a bug report.
> http://bugs.digium.com/view.php?id=12093
>
>
> -----Original Message-----
> From: Trevor Peirce [mailto:tpeirce at digitalcon.ca] 
> Sent: Wednesday, February 27, 2008 6:46 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] Listening to Allison voicemail prompt on SIP
> phone causes [pop] sounds.
>
> shadowym wrote:
>   
>> A bit hard to describe.  Using a SIP hardphone I log into my voicemail at
>>     
> which point Allison says "you have x messages.....".  There are various
> other prompts that exhibit the same problem but that is one easy to explain
> and reproduce one.  The problem is there is a slight 'pop' sound usually
> during the first syllable of each word.  So the prompt sounds like "y[pop]ou
> h[pop]ave t[pop]wo me[pop]ssages".  If I dial *43 to do an echo test and
> Allison says "you are about to enter an echo test....." it's not there so
> it's only in certain modes this happens.
>   
>>   
>>     
> Yes, this is something that has bothered me since I first started 
> working with asterisk 1.2 way back when. It sounds to me like it's an 
> artifact of appending multiple sound files together as it occurs at the 
> beginning of each prompt that is played, or each digit when reading back 
> caller id.
>
> I too see this with gsm, ulaw, and the new slin files. I know it happens 
> with 1.2 and 1.4 on Sipura/Linksys ATAs. I just listened to the prompts 
> on my Aastra 9112i and the pop is there too but not nearly as apparent 
> as on the ATAs.
>
> I've got no idea where to even start trying to solve something like 
> this, but I just wanted to respond that you're not the only one being 
> bothered by it.
>
> Best regards,
> Trevor Peirce
>   

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