Interspech or Interspeech: How To spell?

The word Interspech is misspelled against Interspeech, a noun meaning "A speech interposed between others."

Interspeech has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Intersp & ch which should not be misspelled with single 'E'
Wrong Spelling:  Intersp-e-ch 
Correct Spelling:  Intersp-ee-ch 
Explore spell check of Interspeech to spell without errors.

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