Reverberation fingerprint estimation

A system comprising:

• a wearable head device comprising a see-through display;
• a microphone of the wearable head device;
• a sensor of the wearable head device;
• and
• one or more processors configured to perform a method comprising:
• presenting, via the see-through display, a view of a real-world environment;
• concurrently with presenting the view of the real-world environment, presenting, via the see-through display, a view of a virtual environment;
• receiving, via the sensor of the wearable head device, sensor data indicative of the real-world environment;
• receiving, via the microphone of the wearable head device, an audio signal;
• determining an envelope of the audio signal;
• estimating a reverberation time based on the envelope of the audio signal, wherein said estimating the reverberation time comprises determining a difference between a first reverberation time and a second reverberation time;
• and
• based on the estimated reverberation time and based further on the sensor data, determining a location of the wearable head device in the real-world environment.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform a method comprising:

• receiving, via a microphone of a wearable head device comprising a see-through display and a sensor, an audio signal;
• presenting, via the see-through display, a view of a real-world environment;
• concurrently with presenting the view of the real-world environment, presenting, via the see-through display, a view of a virtual environment;
• receiving, via the sensor of the wearable head device, sensor data indicative of the real-world environment;
• determining an envelope of the audio signal;
• estimating a reverberation time based on the envelope of the audio signal, wherein said estimating the reverberation time comprises determining a difference between a first reverberation time and a second reverberation time;
• and
• based on the estimated reverberation time and based further on the sensor data, determining a location of the wearable head device in the real-world environment.