[asterisk-users] MoH - conversion command

[Alex Balashov]

On 07/28/2011 10:53 AM, Mike wrote:
> Hi,
>
> I’ve been trying to get MoH files to sound decent. I’ve got a hold of
> Royalty-free Classical music (a safe choice for most of my customers)
> and I`ve been trying to convert them to the normal telephony/Asterisk
> format using sox. Unfortunately, it sounds really bad. I don’t expect
> concert hall quality of course, 8000KHz being what it is, but is there
> a better way to convert from good quality .wav files to 8000Khz ? Am I
> using the wrong tool?

Can you elaborate as to what you mean by "really bad"?  What acoustic 
artifacts are you encountering?

Are you testing from a mobile phone?  Cell phones use variable bit 
rate codecs and at times, vicious compression, depending on signal 
strength and other factors.  Anything is going to sound like crap on 
them regardless.  Make sure you are testing from a reasonable endpoint.

-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/