• Mapping of control parameters

    When you create a synth or an effect device, there will be controls to set e.g. the volume, pitch, “phatness”, and whatnot. It is important to provide these controls each with a relevant range from min to max, say. For instance frequencies should usually be below 20 kHz (unless your target audience are dogs). However,…

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  • Digital Filters: Understanding the Mechanics

    Filters are perhaps the most widespread devices in signal processing. Applications cover analysis, signal enhancement, noise reduction, and much more. The goal of this article is to provide some basic insight to the inner workings of digital filters, and in particular to show the relation between filter coefficients and filter characteristics. To this end we…

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