Entropy piano tuner manual1/8/2024 ![]() The video is a bit simplistic in the attempt to sell the software ![]() The fundamental response doesn't matter as much. You'll notice he uses a cheapie dynamic mic in the video, although if you are mainly looking at the 6th partial, then Http:/ / index.php?Lan=english&Page=base/ help.php Well, but that the bass response can be insufficient: That came with your computer or sound card should work The stretch will change slightly for a bias of strong 6:3 partials over 4:2 for example, but the 7th and 9th partials, to name a few, are often very strong in the bass, and must have equal weight in the calculation along with a weak 8th partial.ĭirk's piano tuning page mentions that the simple mic The use of all 88 notes simultaneously in the calculation and a bias toward equally dividing all 88 notes forces the result toward a narrow range of variation in spite of partial amplitude differences. Yes, though the results are likely to be within a few cents of each other, on a per-note basis. Solutions for the same piano exists depending on where Ok, so the Entropy tuner calculates based on partialĪmplitudes, with some sort of Fletcher–Munson curveīut as you mention, the potential for significantly divergent A weighting function, mimicking the nominal human audio frequency response, is applied to the recorded waveforms. The best placement is likely to be where the pianist's ears are located, if the pianist wants to hear the resulting temperament. Obviously the placement of the microphone is also critical due to proximity effects, standing waves, acoustic blocking, and the like. A flat response microphone is essential for an accurate recording of the partial amplitudes. I would imagine the power of the partials is taken into account in finding the lowest entropy - if you can't hear them beating because they're weak, then they matter less, no? So it is probably important to have a flat microphone response - I believe the software already applies a weighting function similar to the well known "loudness" curve that mimics the human hearing response. This is why most tuning software works just fine with the built-in Mainly looking at the FFT frequencies of the partials (harmonics), Is not as important with tuning software, because you are Response, which is usually what you want when recording music, It was concluded in an older thread that a flat frequency Since 2015, Jonathan has been living in southeast Missouri and working as a freelance piano technician, private piano instructor, collaborative pianist, and serving as church organist and music director for the First Presbyterian Church of Cape Girardeau, MO.Īside from his work in instrument repair and maintenance, Jonathan plays “classical” accordion, pipe organ, and piano, and has special interests in early music, musical acoustics, and historic/alternate temperaments.Why would the quality of the mic matter with Entropy tuner, Andre Lash and Piano Technology, with a focus on rebuilding under Mr. While completing his master’s in music theory, Jonathan studied pipe organ performance with Dr. from the University of North Carolina in 2014. in piano performance, with a secondary emphasis in choral music form Liberty University in 2010 and an M.M. ![]() Jonathan Patterson joined Baylor’s staff in 2021 as a piano technician, working to fight entropy and make constant improvements to the university’s large collection of instruments.
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