How to reduce and remove noise and noise in the audio

Fengyun Audio Processing Master is a professional and comprehensive audio processing software, supporting audio cutting, audio conversion, audio merging, audio extraction, audio speed change, volume adjustment and noise cancellation and other practical functions, combined with these functions can fully meet your needs in all aspects of audio processing.

When QQ and YY voice, how to eliminate microphone echo, noise, and noise.

Summary. Is there any way to remove the noise from the audio.

I have a mobile phone recording, the voice is too small, the noise is too big, how can I extract the vocal part?

Hello <> pro-kuan shout

You can manually edit to remove noise: Use audio software to manually edit to remove noise, and you can clip to remove the noise and keep the useful sound.

There is noise throughout the audio, including the vocal part.

Noise can be removed by a filter: a low-pass filter or a high-pass filter can be used to remove noise, a low-pass filter can filter out high-frequency noise, and a high-pass filter can filter out low-frequency noise. Change the microphone or recording environment:

If the noise of the lead chain is too severe, you can change the microphone or recording environment, and choose a better equipment or environment to reduce the interference of the noise. I wish you a happy life! Hope mine is helpful to you ha.

I just want to extract the vocal part of the flower alone, is there a way?

Dear,If you want to extract the vocal dialogue alone, you can use audio software to extract the vocal dialogue part separately,Commonly used software is Adobe Audition、Quiet Biyu Audacity, etc.。 The specific operation steps are:1

Open the audio file and select the part you want to extract. 2.Select the Select tool and select the part that needs to be extracted.

3.Select the "Noise Reduction" or "Noise Removal" function under the "Effect" menu, and select the appropriate denoising method according to the actual situation. 4.

Click the "Apply" button and wait for the processing to complete. 5.Select the Selection tool to select the remainder.

6.Select the "Cut" function under the "" menu to delete the remainder. 7.

Save the part of the vocal dialogue that the number of people taken out of the shortening.

Dear, yes, with the help of software features.

Will there still be murmur in the extracted vocal part?

Dear, there will be no more noise

How do you get rid of noise in the audio? Let's share the steps to remove the noise in the audio.

01 Install audition on your computer and open it.

02 You can import the recorded audio into Audition and find the time period when there is noise and humming.

04 Then click "Effects" in the menu bar, select "Noise Reduction (N) Recovery" - Capture Noise Samples, and click OK.

05 Then select all audio time periods, click "Effects", select "Noise Reduction (N) Recovery", and click "Noise Reduction (Process)".

06 Then a dialog box will pop up for noise reduction settings, you can use the default settings, and finally click Apply, the percentage process of noise reduction will appear, and you can wait for a while.

Audio Repair and Noise RemovalWhen we are recording, we often have various noises in the recorded audio due to problems with the recording equipment or the environment is not quiet enough, which ultimately affects the quality of the audio. In order to reduce the impact of noise on the audio, we need to denoise the audio, and the following will introduce you to a simple and quick method. 1. First open the lightning audio editing software, click Add File, and add the recording to the software.

2. Click Listen below to find the location of noise in the audio. 3. Use the mouse box to select the audio area with only noise, and click Noise Reduction. 4. Click to get the noise signature, and let the software detect the type of noise that needs to be filtered.

5. Select the audio area that needs to be denoised, or select the entire audio, click Noise Reduction, adjust the noise suppression and other parameters in the settings, and click OK. 6. Click to listen to check the effect of noise reduction, if you are satisfied with the effect, click Export on the upper right.

How do I remove audio noise? The audio is noisy, don't worry, use this method to easily eliminate!

1Open the PR, import your own audio, drag the audio to the "Timeline", 2. Click "Audio" in the toolbar, and find "Audio Effects" under "Effects" on the right

3. Find "Denoiser", this is "Noise Removal", double-click the mouse 4 to switch to "Effect Controls", and click "".

5 The following page appears, the button on the left is "Noise Reduction", and the button on the right is"Revert"

6Select the audio you want to reduce noise, click the switch first, then start to adjust, or click the switch button to stop at the end, and finally click "Off".

Use wallpaper, or "soft pack" decoration, or cultural stone and other decoration materials to make the surface of the wall rougher, so that the sound waves are refracted many times, so as to reduce the noise.

If the color of the ceiling, floor, and wall in the light room is too bright, it will interfere with the central nervous system of the human body, make people feel upset, and appear particularly sensitive to noise. Therefore, in the selection of various lamps and decorative materials for interior decoration, special attention should be paid to soft light.

Furniture: The amount of furniture placed in the home should be moderate, less is easy to make the sound resonate and resonate in the room, and more is easy to bump into each other. Wood furniture is well insulated, and wood fiber furniture is porous and absorbs noise. Different woods have different levels of sound absorption, and softer woods absorb more sound, such as pine.

Placing a bookcase in front of a wall adjacent to your neighbor's house can block out the sound coming from your neighbor's house.

The sound-absorbing effect of fabric fabrics is well known, so the use of fabrics to eliminate noise is also a more common and effective method. Tests have shown that the sound absorption effect and effect of draped and tiled fabrics are the same, such as curtains, carpets, etc., and the sound insulation effect of curtains is the most important.

There are many customers, because they don't know that there are professional soundproof windows, have to find their own way, in the existing windows to install one or even two layers of windows, hoping to solve the trouble of noise, but in fact, it often backfires, not only inconvenient to use, but also the effect is not obvious. Many of these cases have proven that the installation of hollow windows cannot achieve the purpose of good sound insulation and noise reduction. What is the reason for this, this is actually because the majority of consumers have a common misunderstanding in the understanding of noise, that is, the reduction of sound as a linear absolute change, according to the law of sound insulation quality, two windows with a sound insulation volume of 40 decibels are really attached to each other, and the sound insulation is increased by up to 6 decibels, which is why many families have installed windows and cannot achieve the effect.

In addition, most of the main noise sources of street residents come from traffic noise, and there are three types of traffic noise sources: first, the sound of car tires rubbing against the ground. This sound is basically bass and is accompanied by vibrations.

This is especially true of concrete roads that are adjacent to them than asphalt roads. The second is the sound of the car engine, exhaust pipe, and car transmission system. The more horsepower and the longer the vehicle limit, the louder the noise will be.

The third is the sound of vehicle vibration caused by the impact of car horns, wind resistance and brakes, speed bumps and loads. Instrument testing shows that the sound pressure level of traffic noise is mainly in the middle and low frequency (below 200Hz), which is also the weakness of ordinary insulating glass soundproof windows. The structure of insulating glass is easy to form a low-frequency resonance phenomenon with traffic noise, and the sound insulation in the low-frequency band is not ideal.

After our testing, the maximum low-frequency sound isolation is only 19dB, and the overall sound isolation is less than 30dB. If the outdoor noise is above 75db, the indoor sound environment can be imagined to be very annoying, so to sound insulation must choose a professional soundproof glass structure.

1.Control at the sound source, known as active self-care or active noise control; 2.control in the propagation pathway, that is, passive governance, also known as passive noise control; 3.

Isolate the recipient to reduce the harm of noise to the recipient. Passive noise control room is a traditional, effective and commonly used technology, including sound reduction, sound absorption, sound insulation, vibration isolation and damping and damping.

The noise control method is mainly controlled from three aspects: noise source, propagation path, receiver (1) noise source control.

1. Eliminate the root cause of noise: improve the structure, improve the production process, reduce mechanical friction, and change the shape of the nozzle.

2. Adopt sound absorption and sound insulation equipment.

2) Control from the noise propagation pathway.

1. Block the route of transmission.

2. Change the installation direction of the machine and equipment.

3. Principle noise source.

3) Protection of the recipient.

In addition to reducing the exposure time of the person in the noisy environment, various personal protective measures can be used, such as wearing earplugs, earmuffs or helmets.

You try professional sound-isolating earplugs, this effect is equivalent to the effect of covering your ears with your hands, the comfort is good, we use this during the lunch break at school, it can block a lot of noise. You go to ** to buy, search for soundproof earbuds.

There are two ways to solve it:

1. Install sound insulation materials at home, but this is a system project, which is more troublesome and more expensive. If you fantasize that you can solve the noise by sticking a random sound-absorbing material on the wall, it is impossible.

Second, it can be judged that it is someone else who is influencing you, then you should complain to the Environmental Protection Bureau, and let the environmental protection department communicate with the club and let them control the noise themselves. This method is the most suitable for you. Times are different now, and if you keep complaining, the club will inevitably have to rectify it.

The methods are:

1) Close windows and doors, which block some of the sound;

2) Soft carpeting;

3) Change the curtains to thick and soft curtains, as some of the sound can be absorbed when it comes in through the window;

4) If you can, stick or hang (close to the contact wall) thick and soft things on the wall: such as quilts, blankets, etc.;

5) Move your study desk to the farthest place from the noise source, one meter away is one meter;

6) If possible, add soundproof soft objects to the ceiling;

With earbuds or headphones, haha

In order to prevent noise, Professor Ma Dayou, a famous acoustician in China, has summarized and studied the hazards and standards of various types of noise at home and abroad, and put forward three suggestions:

1) In order to protect people's hearing and physical health, the permissible value of noise is 75 90 decibels.

2) To ensure conversation and communication, the allowable value of ambient noise is 25 to 50 decibels.

3) For sleep time is recommended at 35-50 decibels.

China's psychology community believes that in addition to considering human factors, it is also necessary to take into account economic and technical feasibility in controlling the noise environment. Adequate noise control must consider the entire system composed of the noise source, the sound transmission pathway, and the recipient. Measures to control noise can be aimed at any of the three or any of the above.

Noise control includes:

1) To reduce the noise of the sound source, the industry and transportation industry can choose low-noise production equipment and improve the production process, or change the movement mode of the noise source (such as damping, vibration isolation and other measures to reduce the vibration of the solid sound emitter).

2) Reduce noise in the sound transmission pathway, control the propagation of noise, change the noise propagation path that has been emitted by the sound source, such as the use of sound absorption, sound insulation, sound barrier, vibration isolation and other measures, as well as reasonable planning of urban and building layout.

3) When measures cannot be taken on the sound source and transmission path, or the acoustic measures taken still cannot achieve the expected effect, it is necessary to take protective measures for the sound recipient or the sound receptor organ, such as workers who are exposed to long-term occupational noise can wear earplugs, earmuffs or helmets and other ear protectors.

Some ways to prevent noise pollution.

1) Create a soundproof forest.

2) Move enterprises with heavy noise pollution out of urban areas.

3) Prevention at the source and reduction of the transmission process.

Although noise control is now technically mature, due to the large scale of modern industry and transportation, there are many enterprises and places that need to adopt noise control, so it is necessary to make a comprehensive trade-off from the technical, economic and effective aspects of noise prevention. At present, there are enterprises and institutions with advanced technology in this aspect of noise control in China: such as the Building Physics Laboratory of Tsinghua University, Hangzhou Hanks Sound Insulation Technology Project, etc., which have made outstanding contributions in the field of noise control and vibration control industry.

Of course, specific issues should be analysed on a case-by-case basis. In the control room, design room, workshop or place where employees work for a long time, the intensity of noise should be low; The warehouse or few people go to the workshop or open space, and it is okay to be a little louder. In short, there should be a certain difference in the treatment of noise at different times, different places, different properties and different durations.