[Freeswitch-users] Choosing a Codec.

[Michael Jerris]

That being said, ulaw l16 alaw will cause degredation and any other  
modifications such as volume adjustment in this path will make it  
worse.  Tha being said that does not sound like what you are  
experiencing

Mike

On Dec 22, 2009, at 10:29 PM, David Knell <dave at 3c.co.uk> wrote:

> On the other hand, a u-law WAV turned into L16 and then back to u- 
> law to
> be sent down the line shouldn't suffer any alteration at all - if it
> does, the there's something wrong with the translation.
>
> The quality dropping over time is almost certainly down to something
> else.  Vinuth -can you get a recording to compare with the original?
>
> --Dave
>
>
>> If its degrading like that you have bigger issues... the sound  
>> files played from wav files vs raw PCM files is NO different on a  
>> land line and I speak from very many years of experience... your  
>> wav files are ulaw in wav containers thus will never play native  
>> which might just be part of your problem.  You would have to have  
>> raw headerless data in a .PCMU file for it to play native.
>>
>> Can you elaborate on your setup a bit more?
>>
>> /b
>>
>> On Dec 22, 2009, at 4:54 PM, Vinuth Madinur wrote:
>>
>>> The audio quality is a lot different when it plays on the  
>>> landline. And the quality degrades a bit when the message played  
>>> is lengthy >30s. So I thought it would be better if I have the  
>>> file in mu-law and play it as is..
>>>
>>> Thanks,
>>> Vinuth.
>>
>>
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