When many people use Bluetooth headphones, they feel puzzled by the continuous rustling sound of Bluetooth headphones. Especially when the song pauses or ends, the rustling sound is particularly noticeable and will continue for a while, which is very annoying.

     This is the legendary Bluetooth headset bottom noise.

     Wireless Bluetooth headsets have become popular, and more and more consumers are choosing to use active noise-cancelling Bluetooth headsets to eliminate ambient noise and enhance the experience of listening to music, watching movies or making phone calls.

     However, many users find that even in quiet environments, active noise-cancelling headphones can produce some background noise. So, is it normal for headphones to have bottom noise? Do all active noise cancelling headphones have background noise?

① What is floor noise?

     If you have used noise-canceling headphones, you may know that sometimes when you turn on the noise-canceling function, you will hear a continuous rustling sound in the headphones and feel confused. Especially when the song pauses or ends, the rustling sound is particularly noticeable and will continue for a while, which is very annoying. For those with sharp ears and high sound quality requirements, these noises are very painful and affect our experience of enjoying music.

     In fact, this rustling sound is called the bottom noise.

     Background noise is the sound produced by headphones without any external sound stimulation, usually rustling or hiss. The background noise may come from the internal circuitry of the headset, the audio driver, or other components.

     In active noise cancelling headphones, the bottom noise may be more obvious due to the use of noise cancelling technology.

② Are current sound and bottom noise the same thing?

     The current sound is not equal to the bottom noise, the volume is first to the minimum, and then gradually increase the volume after hearing the abnormal sound. If the abnormal sound increases with the volume at this time, it is the current sound, and on the contrary, it is the bottom noise.

③ How is the floor noise produced?

     You may ask, is the bottom noise a sign of poor quality headphones? In fact, the generation of background noise is inevitable! Even high-end headphones can produce background noise. Because it is related to the design and circuit processing of the headset. How can I tell if my headphones have background noise?

     In a quiet environment, try playing soft music or white noise. See if you can hear a rustling or hissing sound.

     Or bring another pair of active noise-cancelling headphones of the same brand or model to the same environment for the same listening test. This can help you determine whether all active noise cancelling headphones have a background noise problem.

     In addition, it can be judged by observing the appearance and structure, some high-end headphones will pay more attention to noise reduction effect and sound quality performance in the design and manufacturing process, so more advanced circuit design and drivers may be used. Observing the appearance and construction of the headset can help you to initially judge its quality level.

     If you find that your active noise-cancelling headphones have significant background noise issues, you can try the following solutions:

④ How to solve the obvious background noise problem of headphones?

1. Replace the earphone

     If your headphones are purchased in a formal channel, you can contact the dealer to ask if there are other models or brands of active noise cancellation headphones to choose from.

2. Contact after-sales service

     If you find that there is a quality problem with the headset, you can contact the after-sales service department for maintenance. Some brands offer free repair services, but they need to meet certain conditions and deadlines.

3. Upgrade the software

     Some professional noise reduction software can help you eliminate the background noise. In addition, some audio devices such as external sound cards or decoders may also help reduce the background noise. However, it is important to note that these devices may have a certain impact on sound quality.

     Background noise is a common problem in active noise reduction headphones, and it is a common problem in all noise reduction headphones at present, so it is actually normal for headphones to accidentally hear background noise. Consumers should maintain a rational attitude in the process of purchase and use, and understand the causes and solutions of the bottom noise.

     If the bottom noise problem is particularly serious, we can contact the brand to replace or repair.