[Asterisk-Users] What is the highest quality codec I can use for recording voice messages?

Fats Neutron fats.neutron at grandmore.com
Fri Aug 15 10:36:10 MST 2003


On 14/8/03 12:53, "WipeOut ." <wipeout at linuxmail.org> wrote:

> The highest quality codec is ulaw or alaw (otherwise know as G.711).. These
> are the same as what comes in on your PSTN line..
> 
> If you want high Quality voice prompts your best bet os to record them on a PC
> with a good quality mic and then copy then to your server.. You juast have to
> make sure thay are recorded at the correct sample rate ( IIRC its 8khz 16bit
> mono but I could be wrong on that)..
> 
> Later..
> 
>> 
>> I have looked at the codec's available but I don't know how get the highest
>> quality recorded message.
>> 
>> If a user calls in over the normal telephone network is this limited to the
>> carriers codec or the codec at the asterisk side?
>> 
>> Would I get a higher quality result using VoIP rather than the normal
>> network?
>> 
>> Any help would be appreciated.
>> 
>> Thanks
>> Fats.
>> 

I was interested in getting the highest quality over a normal phone line
because I want users to be able to record their messages at the highest
quality. They do it not me hence my question about the highest quality
codec.

If for example they used VoIP software on a computer could they get higher
quality than over a normal phone line?

If they did use a normal phone line can I increase the quality of is this a
limitation at the carriers end?

Any help would be appreciated.

Thanks.
Fats.




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