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DC offset and Audio Filtering – SoliCall

    https://solicall.com/dc-offset-and-audio-filtering/
    Removal of DC offset is not a constant addition to the audio signal since DC offset tends to change over time due to changes in temperature or pressure. The DC offset should be removed with caution. A simple high pass filters is tricky to use because some of the zero Hz signal (which is the DC) might be actually part of the original signal.

L C Audio Technology / DC Filter

    https://www.lcaudio.com/index.php?page=316
    With this filter module you can remove the DC component. Thus the electrical noise from the typical very large peak currents resulting from the saturated core is removed - and your power transformer kept quiet.. The filter can be used for up to 600 VA idle load, and 1200 VA max load (at 230VAC, half at 115VAC).

Amazon.com: iFi DC iPurifier2 Active Audio Noise Filter ...

    https://www.amazon.com/iPurifier2-Active-Audio-Filter-Supplies/dp/B07DLH93TG
    iFi DC iPurifier2 Active Audio Noise Filter/Conditioner for DC Power Supplies - Audio/Video System Upgrade . Visit the IFI Store. 4.0 out of 5 stars 78 ratings | 17 answered questions . $129.00 $ 129. 00 & FREE Returns . Return this item for free. Free returns are available for the shipping address you chose. You can return the item for any ...

Free Download DC-DSP Filter 1.03

    https://www.free-codecs.com/download/dc_dsp_filter.htm
    DC-DSP Filter 1.03. The DC-DSP Filter is a Microsoft DirectShow audio filter which is built around the DC-DSP Components and which can process 8/16/24/32 bit integer PCM and 32 bit IEEE float audio data. This filter is compatible with any 32-bit Windows operating system, except for NT, on condition that it uses DirectX 9 and above.

How to Fix DC Offset and Transformer Hum In Your …

    https://www.pooraudiophile.com/2015/03/how-to-fix-dc-offset-and-transformer.html
    In other words, that “common mode filter” is what addresses DC offset by filtering out that high-frequency line noise and the effects of DC offset on your audio equipment. I decided to put the CMX-2 to the test and see if it would work as well as the PS Audio Humbuster III.

Constellation Audio DC Filter | Solid state | Audiogon

    https://www.audiogon.com/listings/lis9fh2f-constellation-audio-dc-filter-ac-distribution
    Constellation Audio DC Filter for sale. Selling a Constellation Audio DC Filter. If you own a Constellation Audio Preamp, or Phono pre, this DC filter will significantly decrease noise, and add to transparency. At the asking price, you w...

Audio Filters: Understanding the filters - Part 5

    https://www.engineersgarage.com/audio-filters-basics-of-audio-filters-5-8/
    An audio crossover and an equalizer are types of audio filters. The audio crossover is an electronic filter used to split the input audio signal into different frequency ranges, which are then sent to different drivers (such as tweeter, mid-range, and woofer speakers). The audio equalizer is an electronic filter used to amplify the audio signal ...

Audio Noise Filter Circuit - ElectroSchematics.com

    https://www.electroschematics.com/audio-noise-filter/
    audio filters. NE5532N. This audio noise filter circuit is a bandpass filter for audio frequency band. It filters unwanted signals that are lower or higher than the audio frequencies. It has 2 filters: a low pass filter and a high pass filter in a cascade configuration. Both filters are second-order filters with a 24 dB/octave fiter capability.

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