Audio compression method, how to compress audio

Import the *** format file into flash,And then publish it as a SWF format**file,Finally, use the Shuo Si flash wizard to export the sound,The file size of this *** format is only about 20% of the file size of the original *** format,But the sound quality has some deficiencies compared with the original。

The large file size is mainly due to the high bitrate (such as 320kbps), using a professional audio format converter can compress the audio and reduce the bitrate of the audio appropriately, thus changing the size of the file.

How do I compress the size of ***** format? In order to make it more convenient for everyone to learn quickly, here is a detailed ** tutorial, come and take a look!

Steps: Step 1: First, double-click to open the software and select "Audio Compression" on the left side.

Step 2: Add and add files, or drag and drop files directly here.

Step 3: Then select the compression level in the lower right corner, the higher the value, the smaller the audio compression;

Step 4, then, set the output directory, click the following button to change the location;

Step 5 and finally, click "Start Compression" in the upper right corner.

Step 6: Get the following pop-up window, indicating that the file compression is completed, click to go to the folder after export to browse;

Step 7: Open the audio view properties, the audio file has been compressed very small!

Step 2: Then, click Add File and drag and drop the audio file here.

Step 4: Then, you can set an export location for the compressed audio file, click the following button to switch the position;

Step 5 and finally, click "Start Compression" in the upper right corner.

Step 6: After the compression is successful, you will get the following prompt, click to go to the export folder to browse the file;

Step 7: Open the audio file to view the properties, the audio file has been compressed and made smaller!

How to achieve one-click batch compression of audio files? — Egunder Office.

Method Steps:

The first step is to double-click to open the software, select "Audio Compression" on the left side, and then click Add File to add the audio file that needs to be compressed;

Step 2: Next, select the compression level in the settings on the right, the higher the value, the smaller the audio compression;

Step 3 and finally, click "Start Compression" in the upper right corner.

Step 4: After the compression is completed, click Go to the export folder in the following pop-up window to browse the files;

Step 5: Find the audio viewing properties, the audio has been compressed very small!

How to achieve one-click batch compression of audio files? — Egunder Office.

After adding the audio file, we can click on the setting box next to the "prefabricated scheme", you can clearly see the size of the song file information, when we just started to add audio files, we can clearly see that the audio file size is very large, and the *** that we want to convert into after adding it will become smaller, the output file size is displayed in the software list, and the default selection is *** format.

It is a characteristic of replacing a particularly long character with a very small string of 01 binary numbers, the higher the frequency, the smaller the encoding, and the lower the frequency, the longer the encoding.

Thanks for sharing

Huffman tree + Huffman code.

Huffman code.

It is encoded by binary decimals. Improved on the Shannon code.

A detailed explanation of arithmetic coding.

H264 Series 9 Thermodynamic Entropy Information Entropy Huffman Encoding Columbus Columbian Coding.

Entropy (shang) encoding includes many kinds of encoding, and it is a kind of lossless encoding. We don't need to write our own coding algorithms, they are all coded from ready-made, and we can use them directly.

On the left is a balanced binary tree, a number, the left is less than it, the right is greater than him, and each node has 2 leaf nodes.

On the right is the Huffman treeIt is a non-equilibrium binary tree, which will be calculated according to the frequency of your use, where are you in, for example, 40 bits are very high nodes, then from 80 to 40, it is encoded as 1, for example, 160, the frequency of use is not high, we will encode him as 2, in this way, the amount of data encoded is much less than before, for example: in an article, the frequency of the letters or words represented by 40 is particularly high, and it is necessary to use 1 to represent him, so after the encoding is completed, The amount of data will become very small, and we will append a corresponding word or table with a code, and through a mapping, we can easily restore the original articleThis Fierce Xiang is a very simple Huffman app

Lossless encoding methods: Replace the high-frequency things with short codes, and replace the low-frequency things with long ones, so that after compression, the data will be small.

When a sound is collected, it will be processed by 2 modules and cleared.