Removing the microphone noise. We remove extraneous noise in the microphone on Windows.

How to do: The extension is usually part of a dynamic control processor, which also works as a compressor. The signals around -45 dB expand with a factor of 2, as shown by the blue line on the dynamic response graph. Cons: if the noise level is high enough, the extension gives you problems similar to gating.

How it works: in analog, compassion for the Holy Grail of noise reduction, it worked by compressing the signal entering a typically noisy environment. At the output it will be expanded to return to the original dynamic range. However, any rust added by the tape will then expand to reduce, which will reduce rust.

How to do: Connect the compressor to the input and the expander to the output. You also need to carefully calibrate the levels, otherwise compression and expansion may not be completely complementary. And if the tape has been encoded with a specific noise reduction system, you must have the same encoding type to resonate. But, unlike gating, which is an automatic process, automation allows you to "tune" the moments when you put or do not place "without sound" on the loudest passages and can really give you good results.

Note that the light disappears to facilitate the transition from silence to signal. How to do it: open your track and create automation curves. When the signal ends and "starts" the noise, it draws the automation curve so that it disappears in silence during the noisy part, and then gradually increases when the signal reappears.

Cons: with a lot of tracks to do this, it can be a recent work. But this process has the same limits as the use of nasal shutter. Another time saving option is building automation curves in real time during playback, but you will never be as accurate as in the design of the curve itself. He not only hisses, but also bursts, scratches vinyl, scratches and rustle.

How to do it: open the program, download the file that you need to process, set the parameters for the best results and save the clean version. Or enter the plugin and clear the file. Although various audio editing programs include noise reduction, individual versions can cost up to several hundred euros. In addition, extreme cleaning can produce sound artifacts.

Pros: When these programs work correctly, the result can be miraculous. Whatever the best technique for different situations, you can understand it by trying and trying again. Continue, insist, and in the end you will be very surprised by the result that you can get using the right tools.

It meets the requirements of both incoming audiophiles and more advanced ones. It uses the built-in effects, including bass, quiver and noise removal. The new one still works with the normalization of sound and the elimination of noise. Ridiculous - the function of removing the voice. Inputs and outputs help you manage a new toolbar.

One of the best programs   for sound processing. Homepage: Download at this address. . Imagine a situation where you need to find out which devices are connected to the network: wireless or cable. Finds and displays information about wireless and cable connected devices on the network.

The application allows you to create keyboard shortcuts for the mouse and joystick. Thanks to this you can simply run a file, a document or a website. Functions can be assigned to a multimedia keyboard, fourth and fifth mouse buttons or keystrokes in other applications. In addition, it allows one key press to disable or restart the computer, run screen savers, change the monitor resolution, control the volume, change process priorities, exit programs, drag optical drive, an empty basket.

A queue can not define your own shortcuts. A window will appear and use the mouse to select the area you want to transfer. Unfortunately, you need to install a plug-in for correct conversion of Czech symbols, otherwise there will be meaningless characters. The above standard function can be used to translate into spoken text.

Converts text to the desktop into text. Homepage: Download to. . Cleaning noise and cracks is one of the most common tasks that beginners and advanced users perform in audio editors. Not everyone is interested in mixing and editing music. However, cleaning records is of interest to most computer users.

Its installation is not exceptional, just confirm the default settings. After executing the program, the program automatically activates the Czech interface. Working with it is similar to other audio editors. The record you want to clear must contain a section that is just noise. If you are trying to convert audio from a tape or player, simply turn on the recording with an empty space. Later you use it as a noise sample in your editor, and after cleaning the record you will cut off this unnecessary part.

If you do not use the built-in microphone in your laptop or are not connected to a computer, you need to configure the sound source in the editor. Prepare playback on the connected device a few seconds before the playback starts. Now click the "Download" button in the editor, and then start playback on the connected device. When the recording is complete, click Stop. Do not even try to fix the end of the record at the end. Much more accurate is the subsequent collection in the editor.

Here's how to prepare a record or open an older one from the disc. Now, on the sound track, mark the part where only noise is recorded without the recording itself. As a rule, this will be the beginning or the end of the recording. Use the mouse to drag the tags. The marked part will be highlighted in a darker color.

Call up the "Noise Reduction Effects" function and click "Get noise profile" in the window that appears. Now mark the part of the entry you want to clear. In connection with the procedure described above, this will be a part without initial and final noise. You can also mark the whole record. Recall the noise reduction function, but this time press the "Remove Noise" button. The result should also be seen when comparing the original and new graphic images of the record. If you are not satisfied with the result, you can repeat the procedure and adjust the sensitivity of this function with the drawbar before pressing the "Remove Noise" button.

Select all or part of the entry and click Effects. Removal of cracks. Click "Delete cracks" in the window. The noise sampling window is modal, it is impossible to display it and mark parts of the track. After clearing the recording, it takes time to delete unnecessary beginnings and endings. Again, use the mouse to mark a portion of the record that contains an empty space at the beginning. Precise settings give you a graphical display of the record, and you can also use the play button and its pointer. You can simply delete the selected part by pressing the "Delete" key.

Repeat the same procedure to delete an unnecessary section at the end of the entry. File function Save the project used to save distributed work. You can not open the created file on an ordinary player. Then launch the program settings dialog and click the "File Formats" tab. If you have copied it to the program folder, you should see it right now. Meanwhile, we said something about the introduction, and especially about the sound technique.

You, of course, know that in addition to the actors in the film there are several other people who create it. Someone thinks about the script, the same person often directs the film. And in the environment of amateur cinema, he also shoots. In any case, if we do not consider actors, almost one person can cope with almost everything else. But what can not be done is to hold the microphone on the pole and listen to the sound for the sound. So, in my opinion, the minimum team should consist of two people. Except that we expect that the contact sound will not be in the movie.

By the way, the contact sound is what is removed directly in place synchronously with the video. Therefore, we have a separate role as a sound engineer. What you need is all this microphone. From the microphone - the cables leading to the recording device. Recording equipment and headphones.

Adjusting the input volume level

Whether we use a portable recording device or camera, each of which usually has an input level setting. Cameras often have the ability to switch this setting to automatic control. But how much input is generally configured? First we will say something about digital audio memory. Sound can be represented as a certain value, which varies with time. If we want to convert it into digital format, it is enough to keep the size of this value gradually. How often do we keep this number?

Input signal level a second time

When recording audio in video, usually 48 kHz. But the individual number, which we store, can not be arbitrarily large. We have some opportunities. For example, For a number from 1 to 4, we need 2 bits. From 1 to 256 we need 8 bits. So we can store the numbers up. If we record sound, it may happen that the input level exceeds this number. This leads to distortion of sound. Therefore, the input level should be sufficiently dim. But, on the contrary, we should not greatly weaken it.

Then even the strongest sound will be the number, for example. When processing, we can use the so-called normalization. This makes it the largest number in the entire audio file. If it is less than the maximum range, the entire song is amplified, so that the largest number reaches the maximum possible values.

So, we could only use 11-bit numbers, where we can use the range from 1 to. But we want the range to be as large as the recording quality increases with a larger range. After this poorly recorded record is strengthened, its inferiority will be reflected.

But there is one more problem. Noise can get into the record not only during the capture of the microphone, but also on the way through the cable or the volume control on the recording device. Let's say we have a range from 1 to the amount of input that we set incorrectly, so the very loud noise   reaches 10% of what we have. If the resulting record is normalized, it will increase by 10 times.