Methods and systems for adaptation of synthetic speech in an environment are described. In an example, a device, which may include a text-to-speech (TTS) module, may be configured to determine characteristics of an environment of the device. The device also may be configured to determine, based on the one or more characteristics of the environment, speech parameters that characterize a voice output of the text-to-speech module. Further, the device may be configured to process a text to obtain the voice output corresponding to the text based on the speech parameters to account for the one or more characteristics of the environment.