Abstract: Aspects of the subject technology provide noise mitigation for electronic devices. Noise mitigation can mitigate the effect of a sound-generating component of an electronic device that generates sound as a byproduct of a primary function of the sound-generating component. The noise mitigation can include geometrically distributing another sound in a geometric distribution that mitigates the perceived effect of the sound of the sound-generating component on a user of the electronic device.

Abstract: A messaging application supports a mode of communication in which users can add audio effects to text messages in order to express emotions. These audio effects are described as audiocons. The audiocons may also alternatively include visual effects. In one implementation the message application supports system-defined audiocons, user-defined audiocons, and text-to-speech audiocons. Additionally, the audiocons may be inserted into a communication stream having a mixture of calls, text messaging, and instant messaging including a system having a real-time mode for time-based media and a time-shifted mode.