| The available range of opamps is vast. After selecting based on technical specs, further testing may be needed. Try this do-it-yourself opam...
Alfred Rosenkränzer (38)
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| When measuring distortion in audio devices, it makes sense to filter out the controlling sinusoidal signal before the spectrum analyzer. Thi...
| Audio measuring devices usually have an input level range in which they work optimally and generate only little harmonic distortion themselv...
| The first article in this series presented a simple passive attenuator whose stages can be set using a jumper. Such a solution is well-suite...
| If frequencies and/or times have to be recorded in complex measurement setups and the results have to be related to each other accurately an...
| If frequencies and/or times have to be recorded in complex measurement setups and the results have to be related to each other accurately an...
| For a change, this circuit is not about avoiding distortion, but instead about intentionally generating distortion. It can be useful for che...
| The American company QuantAsylum offers a range of affordable semi-professional audio analyzer tools and instruments. We tried out the QA403...
| The detection of low-level signal distortions places great demands not only on the dynamic range and linearity of the measuring device, but...
| Anyone who knows (or at least knows where to find) the formulae for designing analog filters will always be able to do the necessary calcula...