M4A 與 MP3 兩種音頻格式的深入回顧和比較

由於數字音樂的激增，選擇合適的音頻格式現在比以往任何時候都更加重要。雖然 M4A 和 MP3 被廣泛使用，但兩者之間存在重要區別。雖然 MP3 是音樂文件的事實標準，但 M4A 經常用於提供卓越的音頻質量。

In M4A vs. MP3 comparison, we'll examine the finer points between the M4A and MP3 file formats so you can make an informed decision. We'll also present a comprehensive analysis of the differences and similarities between the two file types regarding audio quality, compatibility, file size, and more. If you're a music lover or a working musician, you'll want to read on to find out which format is ideal for you.

第 1 部分 M4A 與 MP3

這是一個簡單的表格，在不同的重要方面比較了這些格式，以便做出明智的決定。查看下表。

第 2 部分。 M4A 和 MP3 介紹

MP3 與 M4A 的戰鬥已經足夠了。讓我們稍作停頓，通過對每種格式的簡要介紹來了解更多有關這些格式的信息。

M4A Introduction

Apple 專有的數字音頻格式是 MPEG-4 音頻（或簡稱 M4A）。它是適用於音樂、有聲讀物和播客的絕佳音頻格式，因為它可以適應多種比特率和採樣率。 M4A 文件可以在 iTunes、QuickTime 和其他媒體播放器中打開，使其成為 Apple 設備的理想選擇。

MP3 Introduction

MP3 代表“MPEG-1 Audio Layer 3”，是一種數字音頻格式，由於其廣泛採用和低比特率壓縮，已成為壓縮音頻的標準。 MP3 文件非常適合音樂、播客和鈴聲，因為與其他音頻格式相比，它們的體積更小。它們可以在許多不同的設備上播放，也可以從 Internet 上快速輕鬆地下載。另一方面，MP3 文件的音質通常比 M4A 等替代格式差。

第 3 部分。 M4A 比 MP3 好嗎？

M4A 和 MP3 各有優缺點。 M4A以卓越的音質著稱，深受音樂愛好者和專業人士的青睞。另一方面，MP3 的文件較小，並且廣泛兼容各種設備和媒體播放器。

在 M4A 和 MP3 之間做出選擇取決於對您來說更重要的是：高音質或更小的文件大小和兼容性。

第 4 部分。 MP3 和 M4A 之間的區別

流行的數字音樂格式 MP3 和 M4A 具有鮮明的特點。下面詳細解釋一下MP3和M4A的區別：

Sound Quality: M4A is known for its superior sound quality compared to MP3. M4A uses a better compression algorithm and supports a broader range of bitrates and sample rates. M4A also supports lossless compression, which preserves the original audio quality, while MP3 uses lossy compression, which reduces the file size but also reduces the audio quality.

File Size: MP3 files are smaller in size compared to M4A files. This is because MP3 uses a more efficient compression algorithm that reduces the file size without significantly affecting the audio quality. M4A, on the other hand, uses a less efficient compression algorithm that results in larger file sizes but better audio quality.

Compatibility: MP3 is widely recognized as the industry standard for digital audio and is compatible with a wide range of devices and media players, including smartphones, tablets, and computers. M4A, on the other hand, is less widely compatible and is primarily used on Apple devices and software, such as iTunes and QuickTime.

Metadata: M4A supports a wider range of metadata compared to MP3. This means that M4A files can store more information about the audio, such as album art, lyrics, and track information.

DRM Protection: M4A supports Digital Rights Management (DRM) protection, which allows copyright holders to control the use and distribution of their audio files. MP3, on the other hand, does not support DRM protection.

第 5 部分。 如何將 M4A 轉換為 MP3 或將 MP3 轉換為 M4A

除了比較和審查這兩種音頻格式之外，學習如何將 M4A 轉換為 MP3 或反之亦然也很重要。以下是您可以使用的一些程序：

Whether you are online or offline, Video Converter Ultimate is a great tool you can use to convert between M4A and MP3. This utility comes with a lot of features you can take advantage of. The tool offers the capability to convert multiple files into batches, which means you can transform a collection of music files. What is intriguing is that it grants you access to the output settings of your audio files. Find out how this tool works by looking at the steps below.

Step 1. Initiate the download by clicking one of the Free Download buttons and then following the on-screen instructions. The next step is launching the app and getting used to its simple interface.

Step 2. Click the add button on the main screen, then find the audio file you want to convert. A preview of an uploaded file will be displayed on the UI shortly after the upload. You can convert multiple M4As at once to MP3 by uploading a folder.

Step 3. To change the tool's output format, go to the Profile menu's Audio tab (found in the tool's upper right). You can change an M4a file into an MP3 file and vice versa.

Step 4. Select the desired location at the very bottom of the screen. To get started with the conversion, select Convert All.

免費在線視頻轉換器（在線）

No room for another show to air? The good news is that using a web-based converter can prevent downloading software altogether. The Free Video Converter Online web tool allows for in-browser conversion. It also supports a wide variety of music and video file types. In addition, this web tool supports batch conversions. In addition, the user can alter the final audio file's settings. Learn how to convert MP3 to M4A online.

Step 1. First, fire up your preferred web browser and navigate the Free Video Converter Online website.

Step 2. Click the Add Files to Convert option, then navigate to the M4A file you want to convert and select it.

Step 3. Select MP3 as the output file type from the Audio format menu. It is also possible to adjust the bitrate, or output quality, of the MP3 file.

Step 4. To start the conversion process, click the Convert button. That's the procedure for changing M4A to MP3 on the web.

延伸閱讀：

Guidelines on How to Convert M4A to WAV [PC and Mac]

Best Tools that You Can Use to Batch Convert MP3 to M4R Files

第 6 部分。 M4A 和 MP3 常見問題解答

結論

Understanding the MP3 vs. M4A comparison can help you choose the best digital audio format. Whether you're streaming music or producing it, selecting the right format is crucial for ensuring the best possible audio quality and compatibility.