Sometimes we need to trim sound file for diverse purposes. We trim sound to fit a video or trim sound file as a subtitle file for uploading to YouTube. However, most of us don’t know effective solutions or sound trimmer apps to trim sound. That’s why we publish this post. We are here to introduce you how to trim sound file with different sound trimmer tools.

Part 1: Trim Sound Online with Sound Trimmer Online

Sound trimmer online would be the first choice if you don’t want to download and install any kind of sound trimmer programs on your computer. What’s more, most sound trimmer online sites provide totally free service for you to trim sound file online at no cost. This could be a charming feature to us. We would like to introduce you how to trim sound online free with a special sound trimmer online site – Online Audio Trimmer. The below steps would show you how to make use of this online sound trimmer to trim sound online.

1. Visit this sound trimmer online: https://audiotrimmer.com/.

online-sound-trimmer

2. Upload sound file by clicking the "Choose File" button. Then you could browse and upload sound file to trim on this sound trimmer online. You could then view the whole uploading process and this sound trimmer online would play back uploaded sound file for you.

upload-sound-file

3. Trim sound online by adjusting the green limitators or setting the volumes in the "Crop from" boxes. Meanwhile, you need to determine the output format from MP3 and M4R (iPhone) in the "Output Format" box (other sound trimmer online tools might support more output formats).

trim-sound-online

4. After trimming sound file online, you need then to click the blue "Crop" button. Then this sound trimmer online would start to trim sound file online and then save the trimmed file for you to download. On the popup page, click the blue "Download" button to download trimmed sound file. You will be asked to set target directory and file name.

download-trimmed-sound-file

Part 2. Trim Sound with Leawo Video Converter

Most sound trimmer online sites could only handle one file one by one. If you want to trim sound files in batch, you could take a try of Leawo Video Converter, a powerful video converter with multiple functions. It is also an audio converter and sound trimmer that enables you to trim sound file easily. You could easily use this video converter program to trim and cut sound file as you like.

video-converter

Video Converter 

☉ Convert video and audio between all formats.

☉ Trim, Crop, Effect, Watermark to edit video.

☉ Support 2D to 3D conversion.

☉ Add external subtitle and select audio channel.

Download Windows  Download Mac

Download and install Leawo Video Converter on your computer. Then follow the below steps to learn how to trim sound file.

Step 1: Launch Leawo Video Converter and load sound file

Open the software and click "Convert" on the top. Then upload sound file by clicking "Add video" at the top left corner. Leawo Video Converter actually could help you trim sound file from video file as well. Thereby you could upload video and then trim sound from the video to save in sound file.

add-AC3-audio

Step 2: Set the output format

Click the drag-down box next to "Add Photo" button and click "Change" to enter "Profile" panel.

Select  Output Format

Choose one of output formats you want under the "Common Audio". You can choose WAV for good sound quality or MP3 for wide population.

choose mp3 as output format

Step 3: Adjust the parameter of audio

Back to the main interface and click drag-down box next to "Add photo" and choose "Edit" in the drag-down box to go to "Profile Settings". Here you could adjust the audio parameters of selected audio format, including quality, audio codec, bit rate, sample rate and channel.

adjust parameters

Step 4: Trim sound clip

Click the "Edit" icon in the loaded sound file to enter the editing panel.

edit-icon

On the editing panel, open the "Trim" tab and then you could trim sound file as you like. You could adjust the green twin limitators or set the "Start Time" and "End Time" volumes to trim sound file as you like. During trimming, you could preview the trimmed sound file.

trim-sound

Step 5: Output trimmed sound file

With sound file trimmed, click "OK" button to return to the main interface and then click the big green "Convert" button. On the popup sidebar, set output directory in the "Save to" box. After that, click the bottom "Convert" button to start outputting trimmed sound file to your computer.

Convert AC3 files to MP4

Now, you only need to wait for the conversion. When it’s finished, you’ve got the sound files trimmed within Leawo Video Converter. If you’re using a Mac computer, you could turn to Leawo Video Converter for Mac.

Video Demo of How to Use Leawo Video Converter

Part 3. Trim Sound with Leawo Music Recorder

If you want to record sound file and trim sound file by yourself, Leawo Music Recorder is no doubt the best solution for you. It is a professional sound recoding software program and also sound trimmer app that could help you trim sound file as long as you need. To trim sound file, you only need to record the clip you want.

music-recorder

Leawo Music Recorder 

☉ Record any sound from computer stream audio and input audio.

☉ Record from 1000+ music sites like YouTube, Facebook, etc.

☉ Schedule music recording via internal recording task scheduler.

☉ Automatically/manually add tags: artist, album, cover, genre, etc.

☉ Save recordings into either WAV or MP3 format for wide uses.

Download and install this music recorder software on your computer. The below steps would show you detailed guide on how to trim sound file with Leawo Music Recorder.

Step 1: Choose audio source

Click the microphone icon on the main interface to enter the "Audio Source" panel, where you could see "Record Computer Audio" and "Record Audio Input" options. If you want to record and trim sound file from computer file or online, choose "Record Computer Audio". If you want to record and trim sound file from microphone, choose "Record Audio Input".

choose-audio-source-1

Step 2: Choose output format

Go to "Format" tab and then set output format from " Output Format" box. You can choose MP3 or WAV as the output format. Besides, you can change the parameters of bit rate and sample rate.

audios-settings-12

Step 3: Select a folder to save trimmed sound file

Then go to "General" to select the target output directory in the "Output" box.

output settings

Step 4: Start to record and trim sound file

Click the yellow "OK" button to save settings and return to the main interface. To record and trim sound file, you could firstly play back the sound file and then click the red button to start trimming at the point you want to trim. Click the red button again to stop recording at the point you want to end trimming.

start recording

Step 5: Manually add tags if needed

One of the advantages of Leawo Music Recorder is that it could automatically download and add music tags to your recording if you’re recording a song. However, you could adjust these tags like title, artist, album, cover, etc. by going to the "Media" library and then right-clicking the recording to select "Edit Music Tags" option.

Edit music tags

Video Demo of How to Use Leawo Music Recorder

If you’re using a Mac computer, you could turn to Leawo Music Recorder for Mac, which could do exactly the same thing as that of the Windows version, and be compatible with Mac OS 10.6 and later.

To sum up, all these 3 apps could help you trim sound file with ease. Sound trimmer online could help you trim sound file without charge, but the quality is not ensured, while Leawo Video Converter and Leawo Music Recorder could ensure you the sound quality. Leawo Video Converter enables you to trim sound file and then save in tens of audio formats, while Leawo Music Recorder could help you trim sound file and then automatically/manually add tags. What’s more, Leawo Music Recorder enables you to record and trim sound file from microphone.