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After the speech item has been created you can change it using the controls in the contextual ribbon tab. 3.6.5 Sound Sound fragments can be used for questions such as “Who wrote this song?”, “What bird is singing here?”, “What is this noise?” etc. To make things even more interesting, it is possible to alternate the speed of the sound played over time by setting the ‘Speed from’ (speed percentage when the sound start playing) property and the ‘Speed to’ (speed of playback at the end of the sound fragment) property. Likewise you can alternate the pitch of the sound. 3.6.5.1 Inserting a sound file You can add a sound fragment to a question. While showing the question, QuizXpress Live will play this sound fragment. To add a sound fragment to a quiz slide select the INSERT ribbon tab and click the ‘Audio’ button, then select a mp3 or wav file and select whether to link or embed the file: 28