Environmental noise reduction
AssigneeMax Sound Corporation
InventorLloyd Trammell
Life of this patent
Estimating the term…
Abstract
A Noise Control Process for targeted environments is disclosed. According to one embodiment, an input audio source corresponding to sound received from a group of microphones placed at certain locations in the targeted environment, is converted to a digital signal via an analog to digital (A/D) convertor. The ND converted audio is analyzed for content to identify ambient noise. The frequency, amplitude and phase of the identified ambient noise is subsequently determined. A Noise correction sound wave is generated with negative phase of that corresponding to the identified ambient noise. The noise correction sound wave is added to the identified noise to create a noise corrected sound.
Claims6
A Noise Control System and Process for an outside environment comprising:
- Providing an input audio source from a targeted environment;
- Converting the input audio source to a digital signal via an analog to digital (A/D) convertor;
- Analyzing the A/D converted audio for content and identifying ambient noise;
- Determining frequency, amplitude and phase of the identified ambient noise;
- Generating a noise correction sound wave with negative phase of that corresponding to the identified ambient noise;
- Summing the noise correction sound wave and the identified noise sound wave to create a noise corrected audio sound wave.
- Outputting the noise corrected audio sound with diminished noise.
Dependencies are inferred from the claim text.