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Old 03-07-2007, 03:13 AM
Fred Marshall
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Default Re: Time domain convolution in a real-time situation


"DSP-Newbie" <[email protected]> wrote in message
news:[email protected]..
> Rune Allnor wrote:
>> 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

>
> Thanks for the reaction Rune, but see my reply to Jason.
>


Nowhere did you seem to pick up on Rune's suggestion that you *not* throw
out the filter contents when moving to the next block....

Fred


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