>sdsp wrote:
>
>> Hi Jerry,
>> Thank you for your attention.
>> Basically I need to attenuate low frequencies and to exalt hi
>> frequencies.
>> The best would be to filter the frequencies in group of 1/6 octave.
>> In the past days a new requirement arose, and I also need realtime
>> processing (but it's good just to resolve the first problem).
>
>You might be interested in a dynamic audio equalizer like it is
>described here (PDF, 666kB):
>
>http://www.weiss.ch/documents/brochureEQ1-DYN.pdf
>
>Regards,
>Andor
>
Tih is a realy very intresting device, but I need a sofwrare solutios for
my application.
Thanks
Stephen
Reply by Andor●January 9, 20062006-01-09
sdsp wrote:
> Hi Jerry,
> Thank you for your attention.
> Basically I need to attenuate low frequencies and to exalt hi
> frequencies.
> The best would be to filter the frequencies in group of 1/6 octave.
> In the past days a new requirement arose, and I also need realtime
> processing (but it's good just to resolve the first problem).
>sdsp wrote:
>> Hi
>> I need to create a software dynamic digital filter running in windows
XP
>> with those characteristics:
>>
>> When the input level goes over the threshold, after a delay, the
filter
>> become active.
>>
>> When the input level returns under the threshold, the filtering in
>> disabled after an other delay.
>>
>> The best situation would be to have a graphic equalizer filter, but a
>> filter boosting highest frequencies is an acceptable solution.
>> I work with stereo digital input sampled at 96 kHz � 24 bit, 10 � 15
min.
>> each.
>>
>> I�ll prefer to use free software(!), if this is not too complicated to
>> use.
>>
>> I�ve no realtime requirement.
>> Instead it�s preferable storing the output directly in digital format.
>>
>> As you can understand form my lexicon, I�ve no experience in digital
>> filtering; anyway I�ve no difficulties in learning a new language.
>>
>>
>> Thanks an advance.
>
>What do you want the filter to accomplish when it's active?
>
>Jerry
>--
>Engineering is the art of making what you want from things you can get.
>�����������������������������������������������������������������������
Hi Jerry,
Thank you for your attention.
Basically I need to attenuate low frequencies and to exalt hi
frequencies.
The best would be to filter the frequencies in group of 1/6 octave.
In the past days a new requirement arose, and I also need realtime
processing (but it�s good just to resolve the first problem).
Stephen
Reply by Jerry Avins●January 3, 20062006-01-03
sdsp wrote:
> Hi
> I need to create a software dynamic digital filter running in windows XP
> with those characteristics:
>
> When the input level goes over the threshold, after a delay, the filter
> become active.
>
> When the input level returns under the threshold, the filtering in
> disabled after an other delay.
>
> The best situation would be to have a graphic equalizer filter, but a
> filter boosting highest frequencies is an acceptable solution.
> I work with stereo digital input sampled at 96 kHz � 24 bit, 10 � 15 min.
> each.
>
> I�ll prefer to use free software(!), if this is not too complicated to
> use.
>
> I�ve no realtime requirement.
> Instead it�s preferable storing the output directly in digital format.
>
> As you can understand form my lexicon, I�ve no experience in digital
> filtering; anyway I�ve no difficulties in learning a new language.
>
>
> Thanks an advance.
What do you want the filter to accomplish when it's active?
Jerry
--
Engineering is the art of making what you want from things you can get.
�����������������������������������������������������������������������
Reply by sdsp●January 3, 20062006-01-03
Hi
I need to create a software dynamic digital filter running in windows XP
with those characteristics:
When the input level goes over the threshold, after a delay, the filter
become active.
When the input level returns under the threshold, the filtering in
disabled after an other delay.
The best situation would be to have a graphic equalizer filter, but a
filter boosting highest frequencies is an acceptable solution.
I work with stereo digital input sampled at 96 kHz � 24 bit, 10 � 15 min.
each.
I�ll prefer to use free software(!), if this is not too complicated to
use.
I�ve no realtime requirement.
Instead it�s preferable storing the output directly in digital format.
As you can understand form my lexicon, I�ve no experience in digital
filtering; anyway I�ve no difficulties in learning a new language.
Thanks an advance.