Why are there so many video and audio formats, and is there a difference?
3.WAV format
The WAV format is the oldest digital audio format and is widely supported by the Windows platform and its applications. WAV supports many compression algorithms, supports a variety of audio bits, sampling rates and channels, adopts 44.1 kHz sampling rate and 16 quantization bits, so the sound quality of WAV is almost the same than CD, but WAV format requires too much storage space Not easy to communicate and broadcast.
Supplement: Lossless volume is large
4. Format
ASF ASF is a multimedia playback format formulated by Microsoft, suitable for playback on the Internet.
Supplement: rare format
5. Format
AAC AAC is actually short for Advanced Audio Coding. AAC is part of the MPEG-2 specification. The algorithm used by AAC is different from that of MP3. AAC improves encoding efficiency by combining other features. AAC’s audio algorithm far exceeds some older compression algorithms (like MP3, etc.) in terms of compressibility. It also supports up to 48 audio tracks, 15 low-frequency audio tracks, higher sample rates and bit rates, multi-language support, and higher decoding efficiency. In short, AAC can provide better sound quality on the assumption that MP3 files are 30% smaller.
Added: One of the best lossy formats out there. There are many encodings, faac and nero are common, and the bit rate is up to 448kbps. In terms of hardware support, advanced mp3 and mobile phones are generally supported.
6. Format
Mp3Pro Mp3Pro is an improved version of the Mp3 encoding format. MP3Pro is developed by the Swedish Coding Technology Company, which can also compress the volume of sound files to half the size of the original MP3 format while maintaining the same sound quality. Also, the sound quality of the original MP3 music can be improved basically without changing the file size. You can compress audio files to a lower bit rate and keep the sound quality before compression to the greatest extent possible. MP3pro can achieve full compatibility. The extension of the files compressed by mp3Pro remains .mp3. It can be played on old mp3 players. Old mp3 files can be played on the new mp3pro players.
