On 22 Mar, 08:38, minfitl...@yahoo.co.uk wrote:
> What is considered real-time? How much latency would be necessary for
> it to be no longer real-time? The application is adaptive filtering.
> Somebody told me that real-time is strictly one sample in and one
> sample out but most of the processors I have met don't work that way
> any more - they work on buffers of data and surely all real-time
> filters have some latency or is one sample all that is required?

"Real time" means that the data are processed as they come in,
and that this processing is done inside an acceptable latency.
In a phone system, this "acceptable latency" may be on the
order of milliseconds.

Where I work, the "acceptable latency" is 24 hours. It is still
a real-time system.

Rune