# US 12,002,492 B2 · Apparatus and method of removing selective sounds from a video > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,002,492 B2 - Document ID: US12002492B2 - Status: Granted - Kind: B2 - Application number: 17/979,017 - Filed: 2022-11-02 - Published: 2024-05-02 - Granted: 2024-06-04 - Earliest claimed: 2021-11-04 - Assignees: GoPro, Inc. - Applicants: GoPro, Inc. - Inventors: Erich Tisch; Paul Finkel - Web page: https://patentgrep.com/patent/US12002492B2 ## CPC - G11B 27/031: Electronic editing of digitised analogue information signals, e.g. audio or video signals - G03B 31/00: Associated working of cameras or projectors with sound-recording or sound-reproducing means - G08B 3/00: Audible signalling systems, e.g. audible personal calling systems - G10L 21/0208: Noise filtering - H04N 5/91: Television signal processing therefor - H04N 9/802: involving processing of the sound signal (H04N9/806, H04N9/835 take precedence) - H04R 3/04: for correcting frequency response - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract An apparatus including a microphone, a speaker, and a processor. The speaker is configured to produce a sound that indicates an image capture device including the microphone is recording. The microphone is configured to receive the sound. The processor is configured to initiate a sound removal process to remove the sound, produce the sound through the speaker to indicate that the image capture device is recording a video that includes audio, and, after the sound is produced, stop the sound removal process. ## Claims ### Claim 1 An apparatus comprising: a speaker configured to produce a sound, configured as a beep, that indicates that an image capture device comprising the speaker is recording; a microphone configured to receive the sound; and a processor configured to: produce the sound through the speaker to indicate that the image capture device is recording a video that includes audio; initiate a sound removal process to remove the sound from the audio; and after the sound is produced, stop the sound removal process, wherein the sound removal process lasts about 5 seconds or less. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the processor is further configured to produce a recording that includes the audio that is free of the sound that indicates that the image capture device is recording. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the sound removal process to remove the sound includes a notch filter. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the notch filter removes a fundamental sound and harmonics sounds. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the sound removal process to remove the sound includes a frequency filter. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the sound removal process filters three channels with three separate filters. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the processor is configured to calibrate the sound removal process for the image capture device to isolate characteristics of the sound, a strength of harmonics of the sound, or both. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the processor is configured to only filter out sounds within a predetermined specific range. ### Claim 9 A method comprising: initiating a sound removal process; after initiation of the sound removal process, producing a sound including a beep that indicates that an image capture device is recording a video that includes audio; and upon completion of producing the sound, stopping the sound removal process, wherein the sound removal process lasts about 5 seconds or less. ### Claim 10 (depends on 9) The method of claim 9, further comprising: producing a recording including the audio that is free of the sound indicating that the image capture device is recording. ### Claim 11 (depends on 9) The method of claim 9, further comprising: applying a notch filter to the sound. ### Claim 12 (depends on 11) The method of claim 11, wherein the notch filter removes a fundamental sound and harmonics sounds. ### Claim 13 (depends on 9) The method of claim 9, further comprising: applying a frequency filter. ### Claim 14 (depends on 9) The method of claim 9, further comprising: filtering three audio channels with three separate filters. ### Claim 15 (depends on 9) The method of claim 9, further comprising: calibrating the sound removal process for the image capture device to isolate characteristics of the sound, a strength of harmonics of the sound, or both. ### Claim 16 (depends on 9) The method of claim 9, wherein the sound is within a predetermined specific frequency range and the method further comprises filtering out only noises within the predetermined specific frequency range. ### Claim 17 An image capture device comprising: a speaker configured to produce a sound that is a beep, indicating that the image capture device is recording; a microphone configured to receive the sound; an image sensor configured to capture a video while the microphone is recording; and a processor configured to: initiate a sound removal process to remove the sound from the recording; produce the sound to indicate that the image sensor and the microphone are recording a video that includes audio; and stop the sound removal process after a predetermined amount of time, wherein the predetermined amount of time lasts about 5 seconds or less. ### Claim 18 (depends on 17) The image capture device of claim 17, wherein the sound removal process only removes the sound in a predetermined frequency range. ### Claim 19 (depends on 17) The image capture device of claim 17, further comprising: a second microphone configured to receive the sound, wherein the second microphone is located further from the speaker than the microphone. ### Claim 20 (depends on 19) The image capture device of claim 19, wherein the processor is configured to: remove the sound from the recording of the microphone and then remove the sound from the recording of the second microphone.