# US 2026/0073902 A1 · Audio processing system and virtual reality wearable device having audio processing mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0073902 A1 - Document ID: US20260073902A1 - Status: Published application - Kind: A1 - Application number: 19/189,285 - Filed: 2025-04-25 - Published: 2026-03-12 - Earliest claimed: 2024-09-11 - Assignees: C-Media Electronics Inc. - Applicants: C-Media Electronics Inc. - Inventors: CHI-CHEN CHENG; JEI-WEN TENG - Web page: https://patentgrep.com/patent/US20260073902A1 ## CPC - G10K 15/08: Arrangements for producing a reverberation or echo sound {(modifying acoustic properties to change reverberation time G10K11/002)} - G06F 3/165: {Management of the audio stream, e.g. setting of volume, audio stream path} - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract An audio processing system and a virtual reality wearable device having an audio processing mechanism are provided. The virtual reality wearable device includes a virtual reality wearable component and the audio processing system. When the virtual reality wearable component plays a song signal and a user that wears the virtual reality wearable device generates voice, the virtual reality wearable component records a sound signal. The audio processing system removes howling sound from the voice signal. The virtual reality wearable component plays the sound signal from which the howling sound is removed. ## Claims ### Claim 1 An audio processing system, which is applicable to a virtual reality wearable component, comprising: an audio play control component connected to the virtual reality wearable component, configured to control the virtual reality wearable component to play a song signal, and configured to control the virtual reality wearable component to record a sound signal when the song signal is played and a user generates a voice according to the song signal; wherein the audio play control component is configured to remove howling sound from the sound signal to output an audio signal, and the virtual reality wearable component is configured to play the audio signal from the audio play control component. ### Claim 2 (depends on 1) The audio processing system according to claim 1, wherein an application is installed on the audio play control component. ### Claim 3 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; and generate an echo signal and a reverberation signal based on the main audio signal; and output the audio signal according to the main audio signal, the echo signal and the reverberation signal. ### Claim 4 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal; multiply the echo signal by an echo gain to form an echo modulated signal; and output the audio signal according to the main audio signal, the echo modulated signal and the reverberation signal. ### Claim 5 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal; multiply the main audio signal by a main audio gain to form a main audio modulated signal; and output the audio signal according to the main audio modulated signal, the echo signal and the reverberation signal. ### Claim 6 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal, multiply the main audio signal by a main audio gain to form a main audio modulated signal; multiply the echo signal by an echo gain to form an echo modulated signal; and output the audio signal according to the main audio modulated signal, the echo modulated signal and the reverberation signal. ### Claim 7 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal; multiply the main audio signal by a main audio gain to form a main audio modulated signal; multiply the echo signal by an echo gain to form an echo modulated signal; multiply the reverberation signal by a reverberation gain to form a reverberation modulated signal; and output the audio signal according to the main audio modulated signal, the echo modulated signal and the reverberation modulated signal. ### Claim 8 (depends on 7) The audio processing system according to claim 7, wherein the audio play control component is configured to: synthesize the main audio modulated signal, the echo modulated signal and the reverberation modulated signal to form an audio synthesized signal; and multiply the audio synthesized signal by an entire audio gain to output the audio signal. ### Claim 9 (depends on 7) The audio processing system according to claim 7, wherein both of the main audio gain and the echo gain are equal to 0. ### Claim 10 (depends on 7) The audio processing system according to claim 7, wherein both of the main audio gain and the echo gain are smaller than or equal to 0.5. ### Claim 11 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component maintains sound volume of the audio signal at a preset value. ### Claim 12 (depends on 1) The audio processing system according to claim 1, wherein the audio play control component is configured to: fine-tune a frequency of the sound signal for removing the howling sound from the sound signal; convert the sound signal at a time domain into a frequency spectrum at a frequency domain; capture a plurality of frequency spectrum values from the frequency spectrum; calculate a plurality of phases according to the plurality of frequency spectrum values; sample some of the plurality of phases as a plurality of sampled phases; convert each of the plurality of sampled phases at the frequency domain into a plurality of phase sampled time domain waveforms at the time domain; and output the audio signal to the virtual reality wearable component according to the plurality of phase sampled time domain waveforms. ### Claim 13 A virtual reality wearable device having an audio processing mechanism, comprising: a virtual reality wearable component; and an audio play control component connected to the virtual reality wearable component, and configured to control the virtual reality wearable component to play a song signal; wherein, when the audio play control component plays the song signal and a user generates a voice, the audio play control component controls the virtual reality wearable component to record a sound signal, the audio playback control component removes howling sound from the sound signal to output an audio signal, and the virtual reality wearable component plays the audio signal from the audio playback control component. ### Claim 14 (depends on 13) The virtual reality wearable device having the audio processing mechanism according to claim 13, wherein the audio playback control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; multiply the main audio signal by a main audio gain to form a main audio modulated signal; generate an echo signal and a reverberation signal based on the main audio signal; and output the audio signal according to the main audio modulated signal, the echo signal and the reverberation signal. ### Claim 15 (depends on 13) The virtual reality wearable device having the audio processing mechanism according to claim 13, wherein the audio playback control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal, multiply the main audio signal by a main audio gain to form a main audio modulated signal; multiply the echo signal by an echo gain to form an echo modulated signal; and output the audio signal according to the main audio modulated signal, the echo modulated signal and the reverberation signal. ### Claim 16 (depends on 13) The virtual reality wearable device having the audio processing mechanism according to claim 13, wherein the audio playback control component is configured to: use the sound signal from which the howling sound is removed as a main audio signal; generate an echo signal and a reverberation signal based on the main audio signal; multiply the main audio signal by a main audio gain to form a main audio modulated signal; multiply the echo signal by an echo gain to form an echo modulated signal; multiply the reverberation signal by a reverberation gain to form a reverberation modulated signal; and output the audio signal according to the main audio modulated signal, the echo modulated signal and the reverberation modulated signal.