1. A computing device comprising: a processor; and memory having stored thereon instructions executable by the processor to cause the computing device to perform functions comprising: causing a playback device in a playback zone to play a first audio signal; receiving data indicating a second audio signal detected by a microphone of the playback device, wherein the second audio signal comprises a portion corresponding to the first audio signal played by the playback device; based on the second audio signal and a characteristic of the playback device, determining an acoustic characteristic of the playback zone; based on the acoustic characteristic of the playback zone, determining an audio processing algorithm; and causing to be stored in a database, an association between the audio processing algorithm and the acoustic characteristic of the playback zone.