Understanding How ANC – Active Noise Cancellation Software Works from ClaerityAi's blog
ANC or Active Noise Cancellation technology has become the staple of the modern headphone industry. Though it is not considered a basic feature, the technology is no longer reserved for expensive headphones. Most recent headphones, earbuds, or wireless products pack noise cancellation technology in some form.
Technology is increasingly ubiquitous in the audio industry in the modern day. With technological innovation, the integration of ANC into platforms has become nominal, hence the rapid progression. Since its inception, active noise cancellation technology has come a long way.
As the name suggests, the technology can cancel out the surrounding noise, leaving the world a bit quieter. In simpler language, noise cancellation shuts out ambient noise.
However, noise cancelling headphones cannot remove all background noise, rather reducing the amount significantly, creating the illusion that all noise is canceled. But when the term active is added, the headphone or app is actively trying to neutralize the noise.
Initially, the digital technologies were not advanced enough to utilize noise cancelling technology to reduce noises. As a result, analog circuitry was integrated into the electronics of a device.
However, active noise reduction requires a fast response to surrounding noise to be useful, and the analog circuits were not accurate at canceling the noises. With the analog circuits and filters, only a small amount of noise reduction could be achieved via transistors, but it didn’t produce accurate results when unobtrusively listening to music.
Believe it or not, that was the initial consumer application for background noise cancellation technology. Fortunately, digital technology made revolutionary advancements in reducing background noises over time, enabling miniaturization to the point where we see ANC technology today.
Today, we witness the abilities of ANC because it was made possible to move ANC processing into DSP or digital signal processor chips running custom algorithms.
How does ANC Technology Work?In a nutshell, ANC is based on the principle of phase cancellation. More simply, sound waves that are 180-degree out of phase or the inverse cancel out each other when summed up.
The basic idea behind the technology is to record the surrounding noise, invert the signal to build ‘anti-noise, and then add it to the output signal. The anti-noise signal neutralizes the background noise. The concept dates back to the 1930s, but it’s not as easy as it sounds.
In practice, noise cancelling is challenging since different sounds have different frequencies. The technology is easier to put to use with constant noise as compared to loud noises.
The idea is implemented in the headphones, and today, different types of headphones use different modes of noise reduction. Therefore, it is necessary to evaluate the needs before integrating a noise cancellation app or investing in a noise cancelling headphone.
The biggest issue with this technology is sampling ambient sounds with accuracy to offer a maximum degree of attenuation. The microphones must capture the ambient noise, and the phase cancellation waveform must perfectly align with the ambient noise phase.
Therefore, the system requires constant and perfect tuning, yet 100% cancellation cannot be achieved. Instead, a considerable amount of noise can be reduced, up to 1/16 of the original level.
Like headphones, noise cancellation software is an AI-powered app that utilizes ANC technology to remove background noises and improve voice quality. ClaerityAI does the same!
It leverages the power of AI, incorporates speech enhancement technology to cancel out all unwanted background noise and echo from conference meetings, leaving only a human voice. The software makes all forms of surrounding noise go away, exuding the best audio quality.
Final Words:A crystal-clear audio software, ClaerityAI recognizes the human voice, eliminates other unwanted sounds while improving the quality of calls. As a low-maintenance solution, ClaerityAI works securely, ensuring human speech remains in focus during Inbound or outbound calls.
Utilizing ANC technology and intelligent voice enhancement, ClaerityAI has emerged as a premium software exuding privacy and flexibility while delivering HD voice quality every time. Witness the difference with clear communication through ClaerityAI!
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