1. cda CD audio format extension;

2. wav developed by Microsoft and used to save audio information resources on the WINDOWS platform;

3. mp3 Full name MPEG: MovingPictureExpertsGroup)AudioLayer-3, currently the most popular lossy compressed digital audio format;

4. aif/aiff? An audio file format developed by Apple Computer;

5. mid is used by people who often play music, and is most useful in the field of computer composition;

6. wma (Windows Media Audio) comes from Microsoft;

7. ra is mainly suitable for Online music appreciation on the Internet;

8. vqf is a sound format of Yamaha Company, which can be played with Yamaha players;

9. ape is currently a popular digital music lossless Compressed audio files

Extended information:

The following is an introduction to commonly used audio formats:

1. CD? The audio CD format was developed by Philips and Sony in 1980 , and announced in 1982, the sampling rate is 44100 times/second (ie 44.1kHz), and each sample is stored with 16 bits of data. Stereo data is 1.4Mbit/s. It is the file format in CD music discs that we are familiar with.

2. WAV is currently the most popular uncompressed data format. The format of WAV files is flexible and can store many types of audio data. A good choice for saving original recording data. The advantages of the WAV audio format include: simple encoding/decoding, lossless storage. The main disadvantages are the audio storage space required and the 2G limit in 32-bit WAV files.

3. MP3 is currently the most popular digital audio encoding and lossy compression format. Almost all terminals and software support this format. The development of the MP3 format began at Fraunhofer IIS in Germany in 1987 and lasted 4 years. MP3 takes advantage of the human ear's insensitivity to high-frequency sound signals to convert time-domain waveform signals into frequency-domain signals, and divides them into multiple frequency bands. Different compression rates are used for different frequency bands, and the compression ratio is increased for high frequencies. (Even ignoring the signal) Use a small compression ratio for low-frequency signals to ensure that the signal is not distorted. This compresses the sound with a compression ratio of 1:10 or even 1:12.

4. APE? This format has been around for a long time. It uses a more refined recording method to reduce the size and achieve no compression effect. Use Monkey's Audio to compress WAV audio files into APE. Although the size is smaller, the sound quality is the same as the original. The WAV file obtained after decompression and restoration through Monkey's Audio can be completely consistent with the source file before compression. Therefore, APE is known as the "lossless audio compression format". At present, most of the lossless compressed audio files for digital music on the Internet are in the APE format.

Baidu Encyclopedia—Audio Format