ios打开mp3文件_什么是MP3文件（以及如何打开一个文件）？
ios打开mp3文件
A file with the .mp3 file extension is one of the most commonly distributed audio files used today. The MP3 file was created by the Moving Pictures Experts Group (MPEG) and is abbreviated from MPEG-1 or MPEG-2 Audio Layer 3.
扩展名为 .mp3的文件是当今使用最广泛的音频文件之一。 MP3文件是由运动图像专家组(MPEG)创建的，缩写为MPEG-1或MPEG-2音频层3。
什么是MP3文件？ (What Is An MP3 File?)
An MP3 file is an audio file that uses a compression algorithm to reduce the overall file size. It’s known as a “lossy” format because that compression is irreversible and some of the source’s original data is lost during the compression. It’s still possible to have fairly high quality MP3 music files, though. Compression is a common technique for all types of files, whether it be audio, video, or images to reduce the amount of storage they take up. While a 3-minute lossless file, such as Waveform Audio file (WAV), can be around 30 MB in size, the same file as a compressed MP3 would only be around 3 MB. That’s a 90% compression that retains near CD quality!
MP3文件是使用压缩算法来减小总体文件大小的音频文件。 之所以称为“ 有损 ”格式，是因为压缩是不可逆的，并且在压缩过程中会丢失某些源原始数据。 不过，仍然可能有相当高质量的MP3音乐文件。 压缩是所有类型的文件(无论是音频，视频还是图像)的常用技术，以减少它们占用的存储量。 3分钟无损文件(例如波形音频文件(WAV))的大小约为30 MB ，而与压缩MP3相同的文件只有3 MB。 90％的压缩率可以保持接近CD的质量！
RELATED: What Are the Differences Between MP3, FLAC, and Other Audio Formats?
All that compression doesn’t come without some drawbacks, though. While you’re gaining much needed hard drive space, you lose some quality of sound when converting from a lossless file format.
但是，所有这些压缩并非没有缺点。 当您获得了急需的硬盘空间时，从无损文件格式转换时会损失一些音质。
One of the main issues comes in the form of bit rate—basically the amount of actual audio information that gets produced every second. That bit rate is measure in kbps (kilobits per second), and the higher the bit rate, the better quality sound you’re going to hear. MP3 compression removes the parts of the audio file that human ears have a harder time hearing— the highest and lowest ends. For the average music listener, the loss in quality generally isn’t that noticeable.
主要问题之一是以比特率的形式出现的，基本上是每秒产生的实际音频信息量。 该比特率以kbps(每秒千比特)为单位，比特率越高，您将听到的声音质量越好。 MP3压缩会删除人耳难以听见的音频文件部分-最高端和最低端。 对于普通的音乐听众来说，质量损失通常不会那么明显。
RELATED: MP3 Isn't Dead
相关： MP3没有死
如何打开MP3文件？ (How Do I Open An MP3 File?)
As mentioned earlier, MP3 is the most widely used audio file format and because of this almost all audio playback applications are able to open MP3 files—possibly even your eReader.
如前所述，MP3是使用最广泛的音频文件格式，因此，几乎所有音频播放应用程序都可以打开MP3文件， 甚至可以打开eReader 。
RELATED: Why Can I Only Burn 80 Minutes of Music to a CD if My MP3s Take Up Less Than 700MB of Space?
相关： 如果我的MP3占用不到700MB的空间，为什么我只能将80分钟的音乐刻录到CD？
Windows and macOS users are able to play MP3 files right out of the box without having to install any third-party software. In Windows 10, MP3s are played by default in the Windows Media Player; in macOS, they’re played in iTunes.
Windows和macOS用户可以立即播放MP3文件，而无需安装任何第三方软件。 在Windows 10中，默认情况下，Windows Media Player中会播放MP3。 在macOS中，它们在iTunes中播放。
All you have to do is double-click on the MP3 file you want to listen to and by default, your audio player will open the file and start playing.
您所要做的就是双击要收听的MP3文件，默认情况下，音频播放器将打开该文件并开始播放。
If, however, you prefer a different audio player than either of those, changing the association of a file is a simple process on either Windows or macOS. And you most likely won’t even have to do that. When you install a new music app, the chances are high that the new app will claim the association with MP3 files during installation.
但是，如果您希望使用与其他音频播放器都不相同的音频播放器，那么在Windows或macOS上更改文件的关联都是一个简单的过程。 而且您很可能甚至不必这样做。 当您安装新的音乐应用程序时，新应用程序很有可能会在安装过程中声明与MP3文件的关联。
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翻译自: https://www.howtogeek.com/361516/what-is-an-mp3-file-and-how-do-i-open-one/
ios打开mp3文件