What are the common audio formats?

What are the common audio file formats?

1, AU format. Audio format developed by UNIX system. 2.AIFF format. Audio format developed by Apple. 3.VQF format (doomsday yellow flower). Audio format developed by Yamaha Company. 4.CD format (the sound of nature). The best audio format in the world today. 5.APE format (lossless compression). One of the popular digital music file formats in Apefa. 6, MP3 format (fashion). Born in Germany in the 1980s, with a small file. 7.RealAudio format (flowing melody). Mainly suitable for online music appreciation on the network. 8.WMA format (the most powerful enemy). Microsoft's high compression rate is suitable for the audio format of network play online. 9.MIDI format (composer's favorite). MIDI files are audio files that record sound information. 10, WAV format (lossless music). A popular sound file format developed by Microsoft on PC.

What are the audio formats? What is the difference?

1, MP3 format

The full name of MP3 is Audio Layer III of Moving Picture Experts Group. Simply put, MP3 is an audio compression technology. Because the full name of this compression method is MPEG Audio Layer3, people call it MP3 for short. MP3 uses the technology of MPEG Audio Layer 3, and compresses music into files with smaller capacity with the compression ratio of 1: 12 or even1:12. In other words, it can compress files to a smaller extent without losing sound quality. But also the original sound quality is well maintained. Because of its small size and high sound quality, MP3 format has almost become synonymous with online music. The MP3 format of music per minute is only about 1MB, so the size of each song is only 3-4MB. Use MP3 player to decompress (decode) MP3 files in real time, thus playing high-quality MP3 music.

Supplement: The highest code rate is 320K, and the high frequency part is one size fits all. The sound quality is not high!

2.WMA format

The full name of WMA is Windows Media Audio, which is an audio format promoted by Microsoft. WMA format aims to achieve higher compression ratio by reducing data traffic but maintaining sound quality. The general compression ratio can reach 1: 18, and the size of the generated file is only half that of the corresponding MP3 file. This is very important for a model that only assembles 32M. It supports WMA and RA formats, which means that the space of 32M is expanded by 2 times invisibly. In addition, WMA can also add anti-copy function through DRM (Digital Rights Management) scheme, or add restrictions on playing time and times, even playing machines, which can effectively prevent piracy.

Supplement: 128kbps is the best compression ratio of wma, WMA = 128kbps+092kbps MP3.

3.WAV format

WAV format is a sound file format developed by Microsoft, also known as waveform sound file. It is the earliest digital audio format and is widely supported by Windows platform and its applications. WAV format supports a variety of compression algorithms and a variety of audio bits, sampling frequencies and channels. It uses the sampling frequency of 44. 1kHz and the quantization bit of 16, so the sound quality of WAV is almost the same as that of CD. However, WAV format requires too much storage space for communication and propagation.

Supplement: lossless format, disadvantage: very large volume!

4.ASF format

The full name of ASF is Advanced Streaming Format, which is a media playing format developed by Microsoft and suitable for playing on the network. Windows Media On-Demand Producer is a free software for making ASF files, so that even beginners can easily make ASF files using ready-made WAV or AVI files.

Supplement: Rare format

5.AAC format

AAC is actually the abbreviation of Advanced Audio Coding. AAC consists of Flawn Hof IIS-A, Dolby and AT&; An audio format developed by T * * * is a part of MPEG-2 specification. The algorithm adopted by AAC is different from MP3, and AAC improves the coding efficiency by combining other functions. AAC's audio algorithm far exceeds some previous compression algorithms (such as MP3, etc. ) in terms of compressibility. It also supports up to 48 tracks, 15 low-frequency tracks, more sampling rate and bit rate, multi-language compatibility and higher decoding efficiency. In a word, AAC can provide better sound quality on the premise that it is 30% smaller than MP3 files.

Supplement: One of the best lossy formats at present. There are many kinds of coding, the common ones are faac and nero, and the highest bit rate is 448kbps. In terms of hardware support, it generally supports advanced mp3 and current mobile phones.

6.Mp3Pro format

Mp3Pro is an upgraded version of Mp3 encoding format. Developed by Swedish coding technology company, MP3Pro can compress the file size of sound files to half of the original MP3 format while maintaining the same sound quality. But also can improve the original sound quality of MP3 music without basically changing the file size. It can compress audio files at a lower bit rate and the maximum range. ......

What is the audio format, suffix name.

There are many audio formats of computers, among which WAV is commonly used.

, MIDI, CDA, MP3, WMA, MP4, etc.

WAV is a sound file format of Microsoft, also known as waveform sound file. It is the earliest digital audio file and is widely supported by windows platforms and applications. The audio format supports a variety of compression algorithms, a variety of audio bits, sampling frequencies and channels, and the quality of WAV is similar to that of CD. But its audio file is relatively large. It is not conducive to the storage capacity of equipment.

MIDI:

(Musical Instrument Digital Interface)

Also known as musical instrument digital interface, it is a unified international standard for digital music and electronic synthetic instruments. It defines the way in which electronic devices such as computer music programs and digital synthesizers exchange music signals, and specifies the protocol of data transmission between musical instruments and computer connecting cables and hardware devices. Stored in MIDI files are some instructions. Send these instructions to the sound card, and the sound card will synthesize sound according to the instructions.

Command data interception (abbreviation for Command and Data Acquisition)

This is a common CD music format. Its sampling frequency

44. 1khz, 16 quantized bits, CD storage is in the form of audio track, and the waveform stream is recorded in an approximate lossless format.

MP3 file

One of the most familiar audio formats (MPEG- 1 Audio Layer 3).

It was incorporated into MPEG specification in 1992. Mp3 can compress digital audio files with high quality and low sampling rate. Its duty cycle is very small, and the loss of compressed sound quality is very small.

WMA ( Windows

medium

Audio) is another masterpiece of Microsoft in the field of Internet audio and video. WMA format aims to achieve a higher compression rate by reducing data traffic but maintaining sound quality, and its compression rate can generally reach 1: 18. In addition, WMA can also use DRM (digital

Rights management) scheme increases the anti-copy function, or increases the limit of playing time and times. Even the restrictions on game consoles can effectively prevent piracy.

MP4

A2b music compression technology, the key technology of perceptual coding developed by AT&T Company, and the new music format jointly released by American Network Technology Company and RIAA are adopted. Mp4 adopts the coding technology of copyright protection in files, and the compression ratio is 1: 15.

The volume is smaller than mp3, but the sound quality is relatively unchanged.

The article comes from: dixinji/suibiriji/15 _ 04/124.

What are the common audio file formats?

1, AU format. Audio format developed by UNIX system. 2.AIFF format. Audio format developed by Apple. 3.VQF format (doomsday yellow flower). Audio format developed by Yamaha Company. 4.CD format (the sound of nature). The best audio format in the world today. 5.APE format (lossless compression). APE is one of the popular digital music file formats. 6, MP3 format (fashion). Born in Germany in the 1980s, with a small file. 7.RealAudio format (flowing melody). Mainly suitable for online music appreciation on the network. 8.WMA format (the most powerful enemy). Microsoft's high compression rate is suitable for the audio format of network play online. 9.MIDI format (composer's favorite). MIDI files are audio files that record sound information. 10, WAV format (lossless music). A popular sound file format developed by Microsoft on PC.

What are the common audio files?

(1) CMF (Creative Music Format): A special music format of creative companies, similar to MIDI, but with some characteristics in timbre and effect. It is specially used for FM sound cards, but its compatibility is also poor. (2)CDA(CD Audio): The format adopted by the record, also known as the "red book" format, records the waveform stream, which is absolutely pure and HIFI. But the disadvantage is that it can't be edited and the file length is too large. (3) MIDI/RMI (MIDI): MIDI is an international standard of digital musical instrument interface, which defines the communication interface between electronic music equipment and computer, and specifies the specification of using digital coding to describe musical scores. The computer synthesizes music according to the instructions to MIDI devices stored in MIDI files, that is, the frequency, volume and channel number of each note. The advantage of MID file is short; The disadvantage is that the playback effect varies with software and hardware. (4)WAV (Waveform Audio File): It is the standard format for Windows to store digital sound. Due to the influence of Microsoft, it has also become a universal digital sound file format. Because WAV format stores uncompressed audio data, its size is very large. (5) MP3/MP 1/MP2 (MPEG audio layer -3): MP3 compressed file. Because of its high compression ratio and good sound quality, MP3 is the most popular music file at present. (6) VQF (Transform-Domain Weighted Audio Vector Quantization, TwinVQ): It is an audio compression format developed by Yamaha Company, aiming at MP3. The main selling point is that the compression ratio is higher than MP3 and the sound quality is better than MP3. Because VQF is Yamaha's proprietary format and its support (player) is quite limited, its influence is not as good as MP3. (7) Ra/RAM (Real Audio): A file format developed by Real Networks, which is mainly suitable for real-time digital audio streaming technology on the network. Because its goal orientation is real-time online communication, it is far inferior to MP3 in high fidelity, but it is unparalleled in real-time network transmission. (8)ASF/ASX/WMA/ Wax: ASF and WMA are a new generation of streaming digital audio compression technologies developed by Microsoft for Real. This compression technology is characterized by meeting the requirements of fidelity and network transmission at the same time, so it is advanced to some extent. It is also because of the influence of Microsoft that this audio format is now getting more and more support. (9)XM/S3M/STM/Mod/MTM: Actually, these files have different formats, but they all belong to Module, or Mod for short. This music format was very popular on the Internet until the rise of MP3, but it still had some influence.

What are the formats of music files?

wam mp3 rm mid AAC、eAAC+、AAC+、

What are the commonly used audio formats and what software do you support to open them?

LZ upstairs is talking about audio! Only WMA, MIDI, RM, MP3 and ASF can support any format, including winamp, Qian Qian Listening, realplayer, windows media player or Storm Video, especially flash.

What are the common song file formats?

CD format: sounds of nature

What is the best audio format in the world today? CD, of course. So when it comes to audio format, CD is naturally the forerunner. In the "open file type" of most playback software, you can see *. CDA format, that is, CD audio track. The standard CD format is 44. 1K sampling frequency, 88K/ s rate and 16 quantization bits. Because the CD track can be said to be almost lossless, its sound is basically loyal to the original sound, so if you are an audio enthusiast, CD is your first choice. It will make you feel the sound of nature. A CD can be played in a CD player or in a computer through various playing software. The CD audio file is a *. CDA file, which is only an index information, does not really contain sound information, so no matter what the length of CD music is, you should put *. The CDA file seen on the computer is 44 bytes long. Note: * in CD format cannot be copied directly. CDA file to hard disk for playback. You need to use audio capture software like EAC to convert files in CD format into WAV. If the quality of optical drive is up to standard and EAC parameters are set properly, it can be said that audio capture is basically lossless. I recommend you to use this method.

WAV: lossless music

It is a sound file format developed by Microsoft, which conforms to the specification of PIFFRESOURCE exchange file format, and is used to save the audio information resources of WINDOWS platform, and is supported by WINDOWS platform and its application programs. “*。 WAV "format supports many compression algorithms such as MSADPCM and CCITTALAW, and supports many audio bits, sampling frequencies and channels. Like CD format, the sampling frequency of standard WAV file is 44. 1K, the rate is 88K/ s, and the quantization bit is 16. Look, the quality of audio files in WAV format is almost the same as that in CD format.

Incidentally, the AIFF (audio interchange file format) format developed by Apple and the AU format developed for UNIX systems are very similar to WAV, and these common music formats are also supported by most audio editing software.

MP3: A Fashion

MP3 format was born in Germany in 1980s. The so-called MP3 also refers to the audio part of the MPEG standard, that is, the MPEG audio layer. According to the difference of compression quality and coding processing, it is divided into three layers, which correspond to three kinds of sound files: * .mp1* .mp2/* .mp3. It should be noted that the compression of MPEG audio files is lossy compression. MPEG3-3 audio coding has a high compression ratio of10:12:1,while basically keeping the low audio part undistorted, but sacrificing the high audio part from 12KHz to 16KHz in the sound file. Music files with the same length are stored in * * .mp3 format, generally only * *110. WAV file, and the sound quality is not as good as CD format or wav format Because it has small files and good sound quality; So at the beginning of its appearance, no other audio format can match it, thus providing good conditions for the development of * * .mp3 format. Until now, this format is still all the rage, and its position as the mainstream audio format is hard to shake. But the copyright problem of MP3 music has not been solved, because MP3 has no copyright protection technology, which means anyone can use it clearly.

There are many sampling frequencies for MP3 compressed music. The sampling frequency of 64Kbps or lower can save space, and the standard of 320Kbps can also achieve extremely high sound quality. We use the MP3 encoder of fraunhofer Ispeg Lyaer 3 (the best encoder at present) to encode a 3-minute song at the frequency of 128Kbps, and get a 2.82MB MP3 file. Using the default CBR (fixed sampling frequency) technology, songs can be sampled at a fixed frequency, while VBR (can ......

What are the common audio file formats?

mp3，WMA

What are the common audio file formats?

MP3、WAV、WMA、WAV、OGG、APE、ACC