Picture out, sound kept
The converter discards the video stream and writes only audio. You do not need to open the recording in an editor or extract the track by hand.
TS to MP3 Converter
You get an MP3 with the sound of your recording: one audio track, no picture, a file that phones, cars and almost every player open.
To convert TS to MP3, add the TS file, keep MP3 as the output and download the result. TS here is the video file used by TV recordings, DVRs and HLS streams, not TypeScript code. The picture is dropped and one audio track is re-encoded as MP3. In our test a 1.02 MB TS with two audio tracks became a 321 KB stereo MP3 at 128 kb/s, and the full 20 seconds were kept.
Transfers use HTTPS, and files converted on the free tier are deleted after 24 hours, so the result is not a long-term archive. Quality depends on the source file, so open the MP3 file once before you share it.
FromTSLossy
TS (MPEG transport stream)
A video container, not TypeScript code, defined in ISO/IEC 13818-1 (ITU-T H.222.0) for broadcast. It splits audio and video into fixed 188-byte packets, each starting with a sync byte, so a player can recover after transmission errors. It is used by DVB, ATSC and IPTV recordings, DVR and PVR captures, and HLS segments. One file can hold several programs and audio tracks, usually with MPEG-2 or H.264 video, and many phones and editors will not open it directly.
ToMP3Lossy
MP3 (MPEG-1 Audio Layer III)
The oldest widely used lossy audio format, dating from the early 1990s. Its compression is less efficient than AAC, but virtually every car stereo, portable player, operating system and audio program made since can open it.
A 20-second TS test clip with two stereo audio tracks, made by us, converted on indox.org
- TSthe original, H.264 video with two stereo AAC tracks
- 1.02 MB
- MP3from indox, 68.6% smaller, stereo 48 kHz at 128 kb/s, first track only
- 321 KB
Why use indox to convert TS to MP3?
One audio track is chosen for you
A TS can carry several audio tracks, such as two languages. The converter picks one and there is no option to choose. In our test it took the first track when both had the same number of channels, and the track with more channels when they differed.
128 kb/s stereo when you set nothing
We did not set a bitrate. The MP3 came out as 128 kb/s stereo at 48 kHz, the same sample rate as the source audio.
The whole recording, start to end
In our test the source ran 20.02 seconds and the MP3 ran 20.06 seconds. The extra 0.04 seconds is padding added by the encoder, not extra content.
What happens to your recording
Stays
- The length of the recording, start to end
- The sound of the track that is taken
- Your original TS file, which is not touched
Changes
- The picture is removed
- The audio is encoded again as MP3
- Only one audio track is kept
- A 6-channel track is mixed down to stereo (in our test)
How do I convert TS to MP3 online?
- 1
Add your TS file
Drop the TS file on the box or choose it from your device. Keep the original; it is the only copy that still has the picture and every audio track.
- 2
Confirm MP3, then start the conversion
Check that MP3 is the output format and start the conversion. In our test a 20-second clip took 4.3 seconds from the click to Completed.
- 3
Download the MP3 and listen to it
Save the MP3 and play the first minute. If the recording had several languages or commentary tracks, check that the one you wanted is the one you got.
What do I get from indox's TS to MP3 converter?
You hand over a TS recording and take away an MP3 of its sound, with no software to install. The page says plainly that one track is chosen for you, that surround is mixed down to stereo and that the audio is compressed a second time.
- An MP3 that plays on phones, in cars and in every audio app
- Nothing to install on Windows, Mac or a phone
- Results measured on a test clip, including the case with two audio tracks
- A plain statement of which track you get and what is lost
What are the limits for TS to MP3?
Size
The upload box shows the live size limit before you add a file. Signing in raises it; a paid plan does not change it.
Formats
TS in, MP3 out. Pick another output on the converter if you need a different format.
Privacy
Files are encrypted in transit over HTTPS and processed on indox infrastructure.
Deletion
Free-tier files are kept for 24 hours after the job finishes, then deleted automatically.
Limits worth knowing
- You cannot choose the audio track. If the track you want is not the first, or does not have the most channels, it will not be in the MP3. We saw no option to pick a track.
- A surround track is mixed down to stereo. In our test a 6-channel track came out as a stereo MP3.
- The sound is compressed twice. A high-quality TS does not give a better MP3 than its audio allows, and the MP3 is not a lossless copy.
- A browser can refuse the file before it is uploaded. Chromium on Linux labels .ts files as a text type, and in our test the box answered "Nothing in that drop can be converted". The same file was accepted once it was sent as video.
- A damaged or unusual stream can give silent or empty output, as people report for HLS downloads whose audio was lost. Play the MP3 before you delete the recording.
- This page makes no promise about upload size or how long files are kept, and we did not measure either. Check the privacy policy before you upload a recording you care about.
When the result is not what you expected
| What you see | Why | What to do |
|---|---|---|
| The upload box says nothing can be converted | Some browsers label .ts files as a text type, and the page checks that type before uploading | Try another browser or computer; in our test the file was accepted once sent as video |
| You hear the wrong language | Only one track is taken: the first one, or the one with the most channels | Keep the original TS and extract the other track with ffmpeg, which can select a track by number |
| The MP3 is silent or empty | The stream may be damaged, or its audio may not have been saved | Play the TS in VLC to check it has sound, or try another copy of the recording |
| You need the picture as well | MP3 has no video | Use TS to MP4 to keep both |
What do the free and paid plans add?
Free
- All converters
- Daily credit refresh
- Email support
Basic
- Access to all features
- AI Extract
- Priority conversions
- Email support
Highest priority
Premium
- Everything in Basic
- Highest priority queue
- Priority support
Pay-As-You-Go
- No subscription
- Credits never expire
- Opt-in auto-refill
- Access to all features
Which conversions are close to TS to MP3?
TS vs MP3: what is the difference?
| Compared on | TS | MP3 |
|---|---|---|
| Standard | MPEG-2 transport stream, ISO/IEC 13818-1 (ITU-T H.222.0) | MPEG-1 Audio Layer III, ISO/IEC 11172-3 |
| What it holds | Video and audio, and it can carry several programs | Sound only |
| Typical use | Broadcast, DVR recordings and HLS stream segments | Music and speech on players, phones and car stereos |
| Compression | Depends on the codecs inside | Perceptual, lossy audio coding |
| Converting between them | The picture is dropped and one audio track is encoded again | Cannot go back to the original video |
Who can use a TS to MP3 converter?
When to use it
- Keeping the audio of a TV programme or radio show recorded on a DVR to listen to on a phone.
- Pulling a lecture, talk or meeting out of a capture-card or TV-tuner recording.
- Making an audio copy of a recording that has two languages, once you know the first track is the one you will get.
- Saving the sound of a downloaded stream segment as one small file.
Where can I read more about converting files?
Sources
- MPEG-2 Transport Stream (ISO/IEC 13818-1)Library of Congress
- MP3 (MPEG Layer III Audio Encoding)Library of Congress
- ffmpeg Documentation: stream selectionFFmpeg
- Ticket 1056: selecting a second audio streamFFmpeg Trac
Facts checked on November 4, 2026
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TS to MP3 FAQs
How do I convert TS to MP3?
Add the TS file to the converter in your browser, keep MP3 as the output and download the result. Nothing is installed. The picture is dropped and one audio track is written as MP3.
Which audio track is used when the TS has several?
Only one. In our test, with two stereo tracks, the first was taken and the second was missing from the MP3. When we put a 6-channel track second, that track was taken instead, so the track with the most channels wins and the first wins a tie.
What bitrate does the MP3 have?
We did not set one. In our test the stereo MP3 came out at 128 kb/s and 48 kHz. We saw no bitrate option on the page, and a higher number would not add quality the source audio does not have.
Will the sound quality drop?
A little, in principle. The audio in a TS is already lossy, and MP3 compresses it again. For speech and casual listening the difference is small. Keep the original TS if you may need a better copy later.
Is the whole recording kept?
In our test, yes. The 20.02-second source gave a 20.06-second MP3. The extra 0.04 seconds is encoder padding.
Do I need to register?
Not in our test. We used the page without an account and saw no limit, quota or paywall message in four conversions. Limits can change, so this is what we saw on 4 November 2026, not a promise.
Is a TS file the video format or TypeScript?
Here it is the video format, MPEG transport stream, used for broadcast, DVR recordings and HLS streams. It is unrelated to TypeScript code, which also uses .ts.
My .ts file is refused in the upload box. What now?
Some browsers on Linux label .ts files as a text type and the box rejects them. In our test the file worked once it was sent as video. Try another browser or computer, or read the troubleshooting table above.
Can I keep the picture as well?
Not with this page, because MP3 has no video. If you want the whole recording in a more common file, use TS to MP4.