[opus] Overload Point for OPUS

[Jean-Marc Valin]

Hi Marc,

It's not exactly clear how to define the an "overload point" for Opus.
In normal use, it's not a good idea to go beyond the +/- 32767 values
for 16-bit PCM or +/- 1.0 for float. That being said, internally Opus
can represent signals that are up to about 48 dB louder than the PCM
saturation point and if you use the float implementation you can
actually encode and decode files that are much louder than +/- 1.0.

Cheers,

	Jean-Marc

On 10/06/14 10:33 AM, Marc Marroquin wrote:
> Hello,
> 
>  
> 
> Can you please tell me what the overload point is for OPUS in dBm0 or
> dBV?  As an example, the G.711 A law codec has an overload point of
> +3.14 dBm0 across a 600 ohm circuit. 
> 
>  
> 
> In ITU-T G.100.1 section 5.8 you can read more about the relationship
> between dBm0 and dBov.  In that same section you can see that the G.711
> A law, u law, and G.722 codec overload points are also defined.
> 
>  
> 
> Thank you,
> 
>  
> 
> *Marc Marroquin*
> 
> Telecom Account Manager
> 
>  
> 
> *HEAD acoustics, Inc*
> 
> 6964 Kensington Road
> 
> Brighton, MI  48116
> 
>  
> 
> Office: 248-486-0099 xt 226
> 
> Mobile: 810-626-8935
> 
> Web: www.headacoustics.com <http://www.headacoustics.com/>
> 
>  
> 
> 
> 
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