At least Cybertuner has stretch factors built-in. Do you aural tuners do tretch factors? How do you tune "pure" octaves with a "stretch" factor - this seems xymoronic. Duaine There will be others who understand this better than I do, but the way I understand it is that without "stretching" the octaves, the upper notes will not be "pure". When aural tuners tune the higher notes without "stretching" them, they will actually be a little below pitch. It's even worse when tuners use a Conn tuner, which doesn't stretch the octaves at all. (It doesn't even set a temperament). Although the octaves might sound in tune, its is actually on the flat side. Unfortunately I learned to tune with an old SOT, which only tuned up to F6. I had to tune the rest by ear. I thought I was doing OK, until I bought a SAT. I could hear the difference right away, and had to retrain my ear. Wim -----Original Message----- From: Duaine & Laura Hechler <dahechler at att.net> To: pianotech at ptg.org Sent: Fri, Nov 13, 2009 5:25 am Subject: [pianotech] ETD stretch vs pure (octaves) This may seem like a silly question but .... At least Cybertuner has stretch factors built-in. Do you aural tuners do tretch factors? How do you tune "pure" octaves with a "stretch" factor - this seems xymoronic. Duaine -- uaine Hechler iano, Player Piano, Pump Organ uning, Servicing & Rebuilding eed Organ Society Member lorissant, MO 63034 314) 838-5587 ahechler at att.net ww.hechlerpianoandorgan.com - ome & Business user of Linux - 10 years -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091113/2da27394/attachment.htm>
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