A device control apparatus includes a detector which detects sound; and a controller which controls a plurality of devices. The plurality of devices includes a first device which is not related to operation of a vehicle and a second device which is related to the operation of the vehicle. The controller is configured to: recognize voice of a user by using data of the sound detected by the detector; identify a type of an operation target device from a plurality of the devices and operation content of the operation target device, based on the voice recognized; notify a user of start of activating the first device by the operation content identified and activate the first device by the operation content identified when the operation target identified is the first device; and notify the user to request a response before the controller activates the second device by the operation content identified when the operation target identified is the second device.