如何在電腦上免費將 M4A 轉換為 MP3 格式

M4A 是 Apple 專有的音訊檔案格式，採用 MPEG-4 編解碼器。它與 MP4 格式非常相似，不同之處在於 MP4 除了音訊檔案外還可以容納視訊資料。 MP3 發布得更早，在 1993 年，至今仍是儲存音樂最具權威性的標準。它的最大優點是能夠非常有效地壓縮音頻，確保在提供較小文件大小的同時不會顯著損失音頻品質。

M4A gives us better sound quality compared to MP3. If you think that M4A files are more significant than MP3 files, you are wrong. In fact, M4A files can be almost half the size of MP3, and it also supports users to add DRM protection to prevent others from unauthorized distribution of audio. M4A has been regarded as the successor of MP3, but it is still much less compatible. M4A music can only be played on some devices and platforms, so it is better to convert M4A music to MP3 if we want to share the audio files with our friends more conveniently. Here, we pick five methods for turning M4A to MP3 to recommend to you, with their respective application steps.

第一部分.將 M4A 轉換為 MP3 的最佳方法 [快速且無質量損失]

FVC Video Converter Ultimate

After actual testing and comparison, FVC Video Converter Ultimate is the best M4A to MP3 converter worth trying. As a desktop application, it is compatible with both Windows and Mac operating systems and supports up to 1000+ input and output formats. It can easily accomplish almost any file conversion task. Although M4A format files will be higher than MP3, we can hardly feel any change in sound quality when we use FVC Video Converter Ultimate to convert M4A to MP3. And this app is also loaded with a hardware gas pedal that guarantees to output files at 30X faster efficiency, and even batch process multiple tasks with one click.

它值得嘗試，不僅僅是因為它在格式轉換方面的出色表現。它的介面還包含一整套音訊編輯工具，可輕鬆改善音質、消除噪音、修剪長度等。有了這個一體化軟體，將 M4A 轉換為 MP3 將非常容易。

以下是使用 FVC Video Converter Ultimate 將 M4A 轉換為 MP3 的方法。

Step 1. Get FVC Video Converter Ultimate on your device. Finish the basic settings and launch it on your desktop. After entering the main interface, click Add Files to select your M4A audio.

Step 2. The selected audio will be loaded very soon. Go to Convert All to and choose Audio > MP3. Several output options with different bit rates and sound quality are displayed on the page. Select the one that meets your requirements.

If you want to make further editions, click the Cut icon.

Step 3. Go to Save to and set a storage path for your converted M4A audio. Then click Convert All.

二、如何在線上將 M4A 轉換為 MP3

FVC免費音頻轉換

While the desktop tool is more stable and has more features, we need to complete a long list of downloads and installations before we can start the conversion. The installation package of the software will take up a lot of memory space. If we want to start the conversion immediately and save some storage space, we can seek the help of an online M4A to MP3 converter. In this area, we recommend FVC Video Converter Ultimate. the platform supports many popular audio formats, including MP3, WMA, AAC, WAV, AC3, FLAC and so on. Some online converters have file size limitations, but FVC Free Audio Converter doesn't, and we can even let it convert a large number of files at once.

以下是使用 FVC 免費音訊轉換器將 M4A 轉換為 MP3 的方法。

Step 1. Open the FVC Free Audio Converter using your browser. When the web page loads, click Add Files to Convert and upload your M4A audio.

Step 2. After adding, go to the bottom section and choose MP3 as the output format. Press on the settings icon if you want to make further adjustments.

Step 3. Finally, click Convert to start the transformation.

第 3 部分。如何在 Mac 上將 M4A 轉換為 MP3

使用 iTunes 將 M4A 轉換為 MP3

上述兩種方法均適用於 Windows 和 Mac。如果您是 Mac 用戶，並且想要找到與您的作業系統更相容的免費轉換器，我們推薦 iTunes。這款軟體內建於蘋果系統，雖然通常被視為多媒體播放和管理工具，但它也支援執行一些簡單的格式轉換操作。順便說一句，即使是 Windows 用戶也可以嘗試 iTunes。

以下是如何使用 iTunes 在 Mac 上將 M4A 更改為 MP3。

Step 1. If your computer has iTunes, open it. If not, download and install it. You should sign in with your Apple ID and password.

Step 2. Click File > Add Folder to Library, and choose the folder where your M4A audio is kept. Then click Open to upload your M4A file to iTunes.

Step 3. Choose Edit > Preference to open another window.

Step 4. In the new window, click Import Settings and navigate to the Import Using dialog. Choose MP3 Encoder and click OK to keep the settings.

Step 5. Go back to the iTunes library and find the target M4A file. Click File > Convert > Create MP4 Version.

第 4 部分。如何免費將 M4A 轉換為 MP3

在免費的常用工具中，還有兩個可以幫助我們轉換檔案格式的工具，分別是FFmpeg和VLC Media Player。在本部分我們將分別展示如何使用它們。

使用 FFmpeg 將 M4A 轉換為 MP3

FFmpeg 以其能夠執行的任務數量而聞名。不過，相較於傳統的帶有按鈕和預覽視窗的多媒體編輯軟體，FFmpeg 的操作有其獨特之處。我們需要準備程式碼模板，並填寫文件存放路徑。將編碼指令輸入到FFmpeg中，我們就可以得到轉換後的檔案。不過這款應用程式對於沒有經驗的新手來說並不是很友善；準備程式碼比較麻煩。

閱讀本指南以了解如何使用 FFmpeg 將 M4A 轉換為 MP3。

Step 1. Download and install FFmpeg on your computer. Open the Terminal application.

Step 2. Prepare the command you need to use.

ffmpeg -i input.m4a output.mp3

Replace the location of input in the above template with the storage path where the source M4A file is located. Then, replace the output with your desired output path. If you want to convert MP3 to M4A, swap the location of these two storage paths.

Step 3. Type the command into FFmpeg. Then press Enter to start the conversion.

透過 VLC 媒體播放器執行從 M4A 到 MP3 的轉換

VLC Media Player is one of the most recognizable of the free M4A player and format converters. It is known to open multimedia files in almost all formats and is compatible with Windows, Mac, and Linux devices. On its page we can also find some essential audio editing tools.

以下是使用 VLC 媒體播放器將 M4A 轉換為 MP3 的方法。

Step 1. Open VLC Media Player on your computer. Click Media > Convert/Save.

Step 2. Launch the Open Media window. Then press + Add to upload your M4A file. Next, click Convert/Save again.

Step 3. A Convert window will appear. Choose Profile > Audio - MP3. Finally, click Start.

部分4。結論

In this article, we recommend five tools for converting M4A to MP3 and how to use them. Among the desktop software, FVC Video Converter Ultimate is the most versatile and fast converter; iTunes is suitable for Mac users; VLC Media Player is totally free but with fewer editing tools; FFmpeg can accomplish a lot of tasks but is a bit difficult to use. If you want to bypass software downloads and installations, you can use FVC Free Audio Converter.