این تصویر سادهٔ هندسی فاقد شرایط لازم برای حق‌تکثیر است و بنابراین در مالکیت عمومی است، به این خاطر که شامل اطلاعاتی است که ویژگی‌های متداولی هستند و مبتکر اصلی ندارند.

سیاهه بارگذاری اصلی

This image is a derivative work of the following images:

• File:Blank_vowel_trapezoid-three-height.png licensed with GFDL
  • 2005-09-05T08:26:57Z Cassowary 1000x700 (4508 Bytes) Three height version of [[:Image:Blank vowel trapezoid.png]].

• File:IPA_vowel_trapezium.svg licensed with Cc-by-sa-2.5,2.0,1.0, GFDL
  • 2009-04-17T04:07:19Z Moxfyre 980x720 (18591 Bytes) Apparently I missed some text and didn't convert it from Bitstream->DejaVu last time. *sheepish*
  • 2009-02-19T21:21:35Z Moxfyre 980x720 (18429 Bytes) fonts Bitstream->DejaVu (apparently all the IPA symbols actually come from DejaVu which is a derivative of Bitstream... whoops)
  • 2009-02-19T18:25:44Z Moxfyre 980x720 (18659 Bytes) Added example vowel markers and labels, margins with room for labels, and explanatory text, split into separate SVG layers. My goal is to make this more useful as a ''template'' for vowel charts.
  • 2009-02-19T06:05:52Z Moxfyre 882x660 (2907 Bytes) removed unused defs in the XML to reduce file size
  • 2009-02-18T21:57:03Z Moxfyre 882x660 (3165 Bytes) fixed opaque trapezoid
  • 2009-02-18T18:07:31Z Moxfyre 882x660 (3168 Bytes) {{Information |Description=Standard [[:en:International Phonetic Association|IPA]] [[:en:Vowel diagram|vowel trapezium]] template for future SVG-based vowel charts... which are mostly in raster format now :-( |Source=*[[:File

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