Q: What're the possible ways to trim an MP3 file on a Mac? Please give me some suggestions. Thanks in advance! - John White from Quora

There are a lot of reasons that you may want to trim your MP3 music files. For example, trim a beloved song and keep the most exciting part to make it as a ringtone; cut the large audio files into smaller ones so as to save the space of your computer; or slice off the useless portion of your file and share it with friends easily… No matter what reason it might be, what you need is a powerful yet easy-to-use MP3 trimmer to help achieve your purpose.

If you're a Mac user, you may want to know the possible ways to trim MP3 file on Mac, just as John asked. Thus in this article, we're going to show you top 4 methods to trim MP3 on Mac easily and efficiently, so that you can choose one according to your needs.

Part 1. How to Trim MP3 on Mac with Joyoshare Media Cutter for Mac

If you want to trim your MP3 music files on Mac in high quality, here I highly recommend you to use Joyoshare Media Cutter for Mac. Joyoshare Mac MP3 Trimmer is a smart and professional audio video cutter and editor that enables you to trim any MP3 and other media file with almost 100% original quality preserved in a lightning fast speed. You can cut the MP3 file in the millisecond precision level. Besides, the real-time preview is available, so you can pre-hear the audio file every time you made a change.

Besides MP3 format, the program also supports various other audio formats including WAV, OGG, AAC, AC3, FLAC, AIFF, M4R, AU, MKA, WMA, APE, M4A, etc. You can also output the trimmed audio file into other popular mobile devices like iPhone, iPod touch, Samsung Galaxy, Windows Phone, Android Generic, Blackberry, etc. Moreover, Joyoshare MP3 Trimmer also offers you options to edit the file as you like, such as apply special sound effects to your song, add new background music to your recordings, etc.

Key Features of Joyoshare Mac MP3 Trimmer:

Trim MP3 on Mac without quality loss

Cut and convert MP3 at 60X faster speed

Export polished MP3 file in various formats and devices

Pre-hear the MP3 file during the whole process

Step 1 Add an MP3 file to Joyoshare Mac Media Cutter

joyoshare media cutter main screen
Go to the download page of Joyoshare and Choose Media Cutter to download and install the app on your Mac. It will take you a few minutes to complete the installation, and then launch Joyoshare Media Cutter. Click the "Open" button to import the MP3 file you want to trim or simply drag the target file and drop it to Joyoshare.

Step 2 Set the cutting segments

timeline
Drag the handles to determine the starting point and end point, or manually enter the specific starting time and end time. You're also allowed to trim MP3 on Mac in the edit window by clicking the edit icon edit icon next to the file and do the same operation. You need to hit the Scissors icon cut icon to finish cutting the file. Then press the "OK" button to close the window.
trim mp3 on edit window
Note: If you want to add more clips from the same source, then cut and merge them together, you can click the "+" button and then tick the "Merge Segments" box to combine the audio clips losslessly.

Step 3 Select the output mode

output formats
Then click the "Format" button, and there are two output modes that you can choose. Here we highly recommend you to select the "High-speed mode" to trim and convert your MP3 file in a fast speed if you only do the basic trimming. Otherwise, you should choose the "Encoding mode" to customize your audio file quality, bit rate, codec, etc. Then press the "OK" button to shut down the window.

Step 4 Start to trim MP3 on Mac

After all the settings are done, now it's time to click the "Start" button to trim an MP3 on your Mac. Wait a few seconds and then get your trimmed MP3 file from the destination folder converted-files of your computer.

Part 2. How to Trim an MP3 File with QuickTime Player

If you download want to download and install any software in your Mac, you can probably go to Apple's QuickTime Player for help, which every Mac users have. QuickTime Player can also works well as an MP3 trimmer, and cutting an MP3 with this Mac MP3 trimmer can also be pretty easily:

1. Import MP3 music file. Launch QuickTime Player and then go for "File" > "Open File", or just drag the MP3 file you'd like to trim to the program;
2. Trim MP3 file. Go to the "Edit" > "Trim", and then move the yellow sliders to decide the length you desire. Press the playing button to confirm whether it's the right clip you want. If you're happy with it, click the yellow "Trim" button on the top right corner;
3. Save the file. Go to "File" > "Save As/ Export" to save the audio file in M4R format or others as you like.

See also: How to Trim Video Clips with QuickTime

trim mp3 mac with quicktime player

Part 3. How to Cut an MP3 File in GarageBand

Another bundled software in your Mac that can be used to trim MP3 file is GarageBand. Actually it is a useful music creation studio and it can be a nice choice when choosing an MP3 trimmer for Mac. Now follow the quick steps below to see how to trim MP3 on Mac in GarageBand:

1. Open GarageBand on the computer. Choose an "Empty Project" panel and select an MP3 file from iTunes library to be trimmed;
2. Move your mouse to the right position you like. When the cursor becomes a line with arrows, simply click, hold and drag it to trim the MP3 file;
3. Click the playing button to listen to the trimmed clip, if you're satisfied with it, press the "Share" > "Export Song to Disk" to save the file in MP3, AAC, AIFF, etc.

trim mp3 mac with garageband

Part 4. How to Trim MP3 on Mac with Audacity

Of course, you can also trim an MP3 file on Mac with the free open-source audio editing tool - Audacity. Just get the free download of the program from the Internet, and you can easily trim MP3 in Audacity as below:

1. Run Audacity and go to the "File" > "Open" to import the desired MP3 file. Click the "Selection Tool" icon to make it active;
2. Move your mouse to get a specific area you desire. You can press the "View" > "Enlarge" to confirm whether it is just what you need;
3. Now click the "Cut" button to trim MP3 in Audacity. Remember to press the "Stop" button to stop playing before cutting the file, since you're unable to edit it when it is playing.

See also: How to Cut Audio in Audacity

trim mp3 mac in audacity

author

Aug. 07, 2018 14:20 pm

Posted by Josh White to Video Cutting

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