On 6 Mar, 12:01, DSP-Newbie <N...@way.invalid> wrote:

--- start up effects snipped ---

> If this were only a transient startup effect, it wouldn't be a problem,
> but if I apply the algorithm on each incoming datablock, then I will
> obviously "loose" data.
>
> I understand why the first M points must be zero in a "statical"
> situation, but can't figure out how to handle this in a real-time
> environment, so that I get a continuous filtered output.

The issue with missing data points only appears at the very start
of the data sequence. Once the filter starts running, it always
contains valid data, you don't clear the buffer between frames.

Rune