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Reviews Categories | Ham Software - Other than logging | BR-universal-Filter DSP Help


Reviews Summary for BR-universal-Filter DSP
BR-universal-Filter DSP Reviews: 1 Average rating: 1.0/5 MSRP: $for free
Description: Features: Real-time DSP filter designed specifically for amateur radio applications. IIR, FIR filter, low pass, high pass, band pass, band individually adjustable lock Noise filter, Disturbsignalfilter, hum filters, signal peak filter (Peakfilter), Frequency shift and Inversion, Mixer support, Support for multiple sound cards (including virtual sound cards), for example VAC Virtual Audio Cable small file size ease, Langugechange

IIR, FIR filter: Low pass, high pass, band pass and band lock can contact in individually be set. Band pass and band lock are mutually useful. For FIR filters is the order of the filter 16 to 512 adjustable. This corresponds to a frequency resolution of about 700 to 22 Hz at 11,025 Hz sampling rate. At high order is the computer loads higher than at low order. Therefore, the computer loads in low-IIR filters because they have a lower order with the same frequency resolution.

Noise filter: This filter removes noise by using dynamic filtering and amplification.

Distturbsignalfilter: This filter removes tones with irregular spectral character, which is bad by comb filter or band can enter.

Signal Peak filter: Strong Peak Book with this short filters can be used. However, the computational burden at time still very high and the operation is not yet optimized.

Hum filter: For periodic disturbances, this hum filter with Combfiltereffect use. 2 predefined filters for 50 Hz and 60 Hz interference, 1 filter with adjustable frequency filters and 1 with free running frequency can be used. The fluctuation is around 2 percent in the filter to the Disturbgroundfrequency can engage.
Product is in production.
More info: http://www.dsp4swls.de/dsp/br_uni_filt.html
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DL7ISA Rating: 1/5 Oct 21, 2008 08:46 Send this review to a friend
Almost useless  Time owned: 0 to 3 months
There are two Filters wich reduce the Groundnoise: Tonefilter and dyn. Filter. There is no possiblity to adjust the Tone Filter, it is to strong and makes the desired Signal MUFFLED. The dyn. Filter is to weak but still harms the desired Signal a bit. Both Filters together make even a strong Signal very muffled till its unreadable. At least the dyn. Filter is better than no Noise Reduction at all.
 


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