1. The Umlaut “Ö” in German: Theory
Based on chapter 5.8 of Rundblick 2 and online Speaking Practice Chapter 5, 9.9 and 11.8

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3. . . . . O o Umlaut Ö/ö: Spelling
Both the capital letter Ö and the small letter ö, distinguish themselves from the non-Umlaut O/o by
adding two dots above the letter:
. .
. . O o

4. Umlaut Ö/ö: Length [ɶ/ø:]
Just like O/o, the Umlaut version Ö/ö can be either a short sound or a long sound
(often double consonants denote shortness and double vowels or a “h” after the Umlaut denote length):
Long: schon [‘ʃo:n] , schön [‘ʃø:n]
Short: offen[‘ɔfn], öffnen [‘ɶfnǝn]
Tipp: If you can read the phonetic alphabet (words in [ ] brackets), you notice that the long vowels are always indicated by a colon “:”

5. Umlaut “Ö” and “O” –contrast:
Whilst the mouth position of both “o” and “ö” is pretty similar, the position of jaw and Adam’s Apple changes: For the “o”, the lips are pursed, the teeth are apart, the bottom jaw is dropped, the tongue loose in the bottom of the mouth. For the “ö”, the mouth is a little wider, the Adam’s Apple moves slightly up, the lower jaw closes slightly, the tongue presses against the bottom teeth and the sound is higher in pitch.
This difference is best practised in front of a mirror: place your fingers softly on your Adam’s Apple and say a few times:
“Ohren” (ears, plural) – “hören” (to hear)

6. Umlaut “Ö” and “O” –contrast:
Phonetic symbol: [ɶ/ø:]
Phonetic symbol: [ɔ/o:]
schön
öffnen
zwölf
Köln
schon
offen
Zwo (alternative to “Zwei”)
Koblenz

7. Umlaut “Ö” and “O” – contrast in action:

8. The Umlaut Ö/ö: What is it good for?
1. It is often used for the plural form of nouns:
Example: der Sohn (son, singular) – die Söhne (sons, plural)
2. It distinguishes number/tenses in verbs:
Example 1: ich kann (I can, 1st person singular) – ihr könnt (you can, 2nd person plural)
Example 2: ich mochte (I liked, simple past of “mögen”) – ich möchte (I like , present tense of “möchten”)
3. It distinguishes completely different words:
Example: schon (already) – schön (beautiful)

9. Thank you 
Thank you very much for listening to this recording. Remember, you can play this screencast as often as you like. You may wish to save the link to this recording. All materials used in this screencast were produced by the author, Eva Staiger.