Recent phones contain a lot of recent techniques that can give additional advantages rather than performing calls, like performing voice calls via the internet, making video calls and noise cancellation technology in the phones. Noise cancelling or noise isolation technology can help in the improvement of vocal experience of the users and improvement of different uses of the phones. So what is the noise cancellation technology in the phone and how does it work? That's what we are going to know in this article.
What is the noise isolation technology in phones?
Noise isolation technology in phones is a technique that is used in removing all the different external noises and separating it from the voice of the user. These techniques aim to improve the voice quality and remove external noises and interference. Used in voice calls, video calls, video conferences and voice and video recording.
How can the voice cancellation technique work?
Voice cancellation technology in the phone can work via different techniques that aim to reach the highest level of noise cancellation during voice calls or during the use of the phone the different vocal uses. The different techniques that explains the work of the noise cancellation technique can be illustrated as follows:
- Multiple microphones technique most recent phones contain a main microphone that can catch the voice of the user and a secondary microphone that can catch noises and interference. It can convert signals from the secondary microphone to remove interference and noises.
- Frequency analysis technique, where analysis of the different frequencies of the voices is performed and the frequency of the noises and interference could be known.
- Active noise cancellation techniques. These techniques work on producing vocal waves in the opposite side of the noises to cancel noises easily.
- Signals cleaning technique, this technique aims in amplifying the voice frequencies of the user, to improve its quality.
- Artificial intelligence techniques, where artificial intelligence techniques are used in detecting the pattern of the human voice to amplify it on the opposite side of the noise.
- Beamforming techniques, these techniques work on focusing microphones to detect the user's voice only.
- Noise gate technique. In this technique voices of Law frequencies will be detected and blocked. Human voice frequencies range from 300 to 3400 Mhz and frequencies that are not located in this range are considered noises and will be blocked.
What are the steps of noise cancellation technique in the phone?
Noise cancellation techniques in the phone can work via using one of the previously mentioned techniques or using a number of these techniques. In this paragraph we will discuss the method of noise cancellation that occurs in most phones.
- The first point is catching over vocal signals through mean and secondary microphones that we have previously mentioned.
- Analyzing the signals coming from each microphone, through frequency analysis techniques, active noise cancellation techniques, and signal cleaning techniques, this is useful in analyzing the different frequencies coming from the phone’s microphones.
- Active noise cancellation through producing opposite signals to the vocal signals of the noise that helps in its cancellation.
- Human voice enhancement feature, as this feature works using Beamforming technology, which focuses the sound in the direction of the speaker only, without having to pick up the sound of noise.
- Improving the frequency of the human voice, as some technologies work to enhance the frequencies of the human voice, and block frequencies that do not belong to the category of the human voice by detecting frequencies as we mentioned before.
Noise cancellation technique in the phone has a great importance in the improvement of the quality of voice calls, and Increasing the clarity and purity of sound in various uses. This technique helps in increasing purity and clarity of the voice used in voice calls, voice recording, group calls via the internet and many different uses.