[PD-dev] [pure-data:bugs] #1187 High- and Bandpass Bug

[Ticket 1187]

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** [bugs:#1187] High- and Bandpass Bug**

**Status:** open
**Group:** v0.43
**Created:** Thu Jan 22, 2015 01:32 PM UTC by Anonymous
**Last Updated:** Thu Jan 22, 2015 01:32 PM UTC
**Owner:** nobody

The Highpass and Bandpass filter are not working as excepted filtering a [noise~] signal with [hip~ 20000]. The attached images illustrating the problem. I'm created a patch with four serial highpass filter using the same input frequency. Until 6000Hz everything seems fine, but then things do not work as anticipated. 
The Bandpass filter is also not working. Most notably in comparision with the [vcf~] filter.

**Using PD Vanilla version 0.45.4 does not produce any bugs.**

Link to the pd forum examing the bug: <http://forum.pdpatchrepo.info/topic/8967/highpass-hip-not-working-as-expected/6>

Pd version 0.43.4-extended
Windows 8.1 / internal sound
Windows 7 / external sound




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