Reply by Eric Jacobsen●December 27, 20092009-12-27
Gah! Mixing top and bottom posting makes a thread unreadable.
To answer the last, top question, it means that every second 12200 bits
should reach the decoder. That does not account for delay, which is
probably a separate specification.
On 12/27/2009 6:41 AM, Sylvester wrote:
> I appreciate your response.
>
> To go further when I say channel bit rate = 12.2K bits per second does
> that mean 12200 bits should reach the destination from source in a
> seond?
>
>
> On Dec 27, 7:58 am, Eric Jacobsen<eric.jacob...@ieee.org> wrote:
>> On 12/26/2009 7:18 PM, Sylvester wrote:
>>
>>> Dear all,
>>> What does the bitrate of a codec quantify? In other words
>>> if say AMR codec supports a bitrate of 12.2 Kbps what does that
>>> numerical value mean?
>> That's the channel bit rate, i.e., if you can support transport of
>> 12.2kbps you can keep the codec running in real time. Anything slower
>> than that and it'll be missing packets on the receive side, and if your
>> channel can support more than that, it won't take up any more than
>> 12.2kbps of the resources.
>>
>> --
>> Eric Jacobsen
>> Minister of Algorithms
>> Abineau Communicationshttp://www.abineau.com
>
I appreciate your response.
To go further when I say channel bit rate = 12.2K bits per second does
that mean 12200 bits should reach the destination from source in a
seond?
On Dec 27, 7:58�am, Eric Jacobsen <eric.jacob...@ieee.org> wrote:
> On 12/26/2009 7:18 PM, Sylvester wrote:
>
> > Dear all,
> > � � � � � �What does the bitrate of a codec quantify? �In other words
> > if say AMR codec supports a bitrate of 12.2 Kbps what does that
> > numerical value mean?
>
> That's the channel bit rate, i.e., if you can support transport of
> 12.2kbps you can keep the codec running in real time. � Anything slower
> than that and it'll be missing packets on the receive side, and if your
> channel can support more than that, it won't take up any more than
> 12.2kbps of the resources.
>
> --
> Eric Jacobsen
> Minister of Algorithms
> Abineau Communicationshttp://www.abineau.com
Reply by Eric Jacobsen●December 26, 20092009-12-26
On 12/26/2009 7:18 PM, Sylvester wrote:
> Dear all,
> What does the bitrate of a codec quantify? In other words
> if say AMR codec supports a bitrate of 12.2 Kbps what does that
> numerical value mean?
That's the channel bit rate, i.e., if you can support transport of
12.2kbps you can keep the codec running in real time. Anything slower
than that and it'll be missing packets on the receive side, and if your
channel can support more than that, it won't take up any more than
12.2kbps of the resources.
--
Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.abineau.com
Reply by Sylvester●December 26, 20092009-12-26
Dear all,
What does the bitrate of a codec quantify? In other words
if say AMR codec supports a bitrate of 12.2 Kbps what does that
numerical value mean?