1. A method of annotating a media presentation, the method comprising: playing at least a portion of the media presentation at a computing device comprising one or more audio input devices; monitoring the one or more audio input devices for voice input received during the playing; and upon detecting voice input and without manual interaction with the computing device: upon determining that a user is speaking in the direction of the computing device, wherein the determining that the user is speaking in the direction of the computing device is based at least in part on a signal strength of the voice input received at the one or more audio input devices being above a first threshold value and variations in the signal strength of the voice input received at the one or more audio input devices being below a second threshold value: determining that the voice input comprises an annotation to be added to the media presentation; recording the annotation during the playing; and adding the annotation to the media presentation; and upon determining that the user is not speaking in the direction of the computing device: determining that the voice input does not comprise an annotation to be added to the media presentation.
1. A method of annotating a media presentation, the method comprising: playing at least a portion of the media presentation at a computing device comprising one or more audio input devices; monitoring the one or more audio input devices for voice input received during the playing; and upon detecting voice input and without manual interaction with the computing device: upon determining that a user is speaking in the direction of the computing device, wherein the determining that the user is speaking in the direction of the computing device is based at least in part on a signal strength of the voice input received at the one or more audio input devices being above a first threshold value and variations in the signal strength of the voice input received at the one or more audio input devices being below a second threshold value: determining that the voice input comprises an annotation to be added to the media presentation; recording the annotation during the playing; and adding the annotation to the media presentation; and upon determining that the user is not speaking in the direction of the computing device: determining that the voice input does not comprise an annotation to be added to the media presentation. 10. The method of claim 1 , the computing device comprising a display, the media presentation being played back at the display during the playing, user interface elements related to annotation being absent from the display during the playing.