Summary
To convert an MTS video file to MP3, AnyMP4 Video Converter Ultimate and VLC are best for offline use and privacy. For small files and occasional conversions, AnyMP4 Free Online Video Converter, CloudConvert, and FreeConvert are worth trying. If you're a mobile user, Media Converter is a good app. Each tool extracts and saves audio in a few easy steps.
An MTS file is an HD video file format based on the AVCHD standard. Sony and Panasonic digital camcorders use it to store 720p and 1080i/1080p video recordings. These files are large because they contain both high-definition video and audio. If all you need is the soundtrack, converting MTS to MP3 removes the unnecessary video data, creating an audio file. In this guide, we will teach you six ways to extract audio from your MTS files and convert them to MP3s. By the end, you will learn which method works best for large AVCHD files, occasional conversions, and mobile users.
AnyMP4 Video Converter Ultimate isn't just software for converting video to another video format. It can also extract audio from MTS and decode it into an audio-only format. It allows you to batch-extract hundreds of audio files from MTS at 120× speed. Best of all, you can adjust the audio encoder, channel, bitrate, and sample rate to achieve lossless audio extraction.
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1. Download AnyMP4 Video Converter Ultimate and complete the installation. Soon after the setup, click +Add Files to import your AVCHD recordings.
2. Head to Output Format and select MP3 in the Audio category. Next, select the Same as Source quality preset to match the audio bitrate of MTS to MP3.
3. Enable Hardware Acceleration to accelerate the conversion process. Specify the output destination, then click Convert All to batch-extract the audio from your recordings.
It took only 5 seconds to extract the audio from a 384.80 MB file (10 MTS) and convert it to MP3. Before the conversion, we increase the MP3 volume to maximize the signal-to-noise ratio. In our audit, using the Same as Source preset, the bitrate is retained at 320 kbps.
VLC Media Player isn't just used for MTA and AVCHD playback. Many users didn't know that it has a secret Panasonic AVCHD audio extractor. You can use the Convert/Save tool to extract the audio stream and save it as an MP3.
1. Head to the Open Media window by selecting Convert/Save in the Media tab. Click +Add to add the MTS sources, then click Convert/Save to continue.
2. In the Convert window, click the Profile picker and choose Audio - MP3. After selecting the new profile, click Start to begin the conversion.
For a fair test, we used the same source files (10 MTS files, totaling 384.80 MB). During the process, VLC crashed unexpectedly at the 6th item in the queue.
AnyMP4 Free Video Converter Online can safely and securely convert 320 kbps MP3 from MTS. It is best used for small, single-file conversions with a file size below 100 MB. You can also adjust the default encoder, channel, sample rate, and bitrate before conversion. Better yet, it ensures 100% data privacy and security by deleting the uploaded files after conversion.
To convert: Go to AnyMP4 Free Video Converter Online and click Upload File to load the MTS source. Switch to the Audio tab and select MP3 in the Format picker. Click Save to start the conversion, then download it right after.
Guest users can upload files up to 50 MB, while logged-in users get a 100 MB limit. For larger files, we recommend using the AnyMP4 desktop version.
CloudConvert is a media and file converter that supports lossless extraction of MTS to MP3. It can isolate the internal audio from an AVCHD recording and save it as an MP3 file. It also includes a built-in audio trimmer, allowing you to cut the start and end times.
To convert: Navigate to CloudConvert and click Select File to upload MP4s. Click the Format picker and select MP3 in the Audio category, then click Convert.
CloudConvert allows up to 1 GB upload size and 10 conversions per day in the free version. However, you can only process 5 concurrent conversions at a time.
FreeConvert is a conversion service that can be used as an AVCHD-to-MP3 converter. It supports local uploads, cloud imports, and pasting a URL. Apart from MP3, it can also convert MTS to MP4 and other video formats.
To convert: Head to FreeConvert and click Choose Files to import the MTS. Set MP3 as your target format in the Output picker, then click Convert to initiate the conversion.
As the name implies, FreeConvert is free to use. However, it has a 1 GB file upload limit and a daily cap of 20 minutes of conversion time.
Media Converter is an iOS app packed with various tools for handling media files. It offers video-to-video, audio-to-audio, image-to-image, video-to-GIF, and most notably, video-to-audio. The Video-to-Audio tool allows you to convert MTS to MP3 with customizable settings.
To convert: Get the Media Converter app from the App Store and open it. Select Video to Audio and import the MTS video. Select mp3 as your target output, then tap Start to convert.
For Android users, the process is almost identical. If you don't want to install any third-party app, you can use an online tool on your default mobile browser.
| Speed | Max Bitrate | Batch Support | Best for | |
|---|---|---|---|---|
| Anymp4 Video Converter Ultimate | 120× speed | 320 kbps |  Unlimited |
Fast batch conversion of hundreds of MTS with 320 kbps output |
| VLC Media Player | Normal speed | 320 kbps | No limit |
Converting files below 10 without a paid subscription |
| AnyMP4 Free Online Video Converter | Depends on the server | 320 kbps |  |
Small, single-file conversion below 100 MB |
| CloudConvert | Depends on the server | Same as source | 5 concurrent conversions |
Decoding MTS with a 1 GB file size |
| FreeConvert | Depends on the server | Same as source | 5 concurrent conversions |
Converting MTS files not exceeding 5 |
| Media Converter | Normal speed | 320 kbps | |
Extracting audio directly from a mobile phone |
How can I convert MTS to MP3 on Windows 11 without losing quality?
You can use AnyMP4 Video Converter Ultimate on Windows 11 to convert files without losing quality. It offers various presets, allowing you to retain the original quality of the source file.
What is the best bitrate for extracting audio from AVCHD files?
AVCHD files contain Dolby Digital (AC-3)/DTS audio, recorded at a bitrate between 384 and 448 kbps. For MP3 files, 320 kbps is the recommended bitrate for audio extraction.
Can VLC batch convert MTS files to MP3?
Yes, it can transcode MTS to MP3 in batches. However, it overloads the memory when converting multiple or large HD files, leading the software to crash.
Why is there no sound when I play MTS files on my phone?
It is because most mobile phones' default video players do not support the AC-3 (Dolby Digital) audio codec. This is why it is recommended to convert it to standard formats like MP3.
Converting MTS to MP3 allows you to extract audio from large AVCHD recordings. This makes storage, sharing, and playback much easier across different devices. After comparing 6 methods, AnyMP4 Video Converter Ultimate is the best tool for fast, high-quality, and batch conversion. If your MTS files are smaller than 100 MB, AnyMP4 Free Video Converter Online is a good alternative.
Posted by Alice Thorne to Convert Video, Convert AudioMore readings
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