A system may include a wearable camera configured to capture a plurality of images from an environment of a user and a microphone configured to capture sounds from an environment of the user. The system may also include a processor programmed to receive the images; identify a representation of one individual in one of the images; identify a lip movement associated with a mouth of the individual, based on analysis of the images; receive audio signals representative of the sounds; identify, based on analysis of the sounds, a first audio signal associated with a first voice and a second audio signal associated with a second voice; cause selective conditioning of the first audio signal based on a determination that the first audio signal is associated with the identified lip movement; and cause transmission of the selectively conditioned first audio signal to a hearing interface device.