How to convert MPEG Transport Stream (TS) to M4A (AAC/ALAC)
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
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Convert MPEG Transport Stream (TS) to M4A (AAC/ALAC)
NexMedia converts MPEG Transport Stream (TS) to M4A (AAC/ALAC) on its own servers. Processing time depends on the file size and how busy the queue is.
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Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About MPEG Transport Stream (TS)
An MPEG transport stream (TS, MTS, M2TS) is the container used for digital TV broadcasting and Blu-ray. It is built from small fixed-size packets that tolerate transmission errors.
TV recordings, AVCHD camcorder files (.mts), Blu-ray discs (.m2ts) and HLS streaming segments.
The packet structure adds overhead, and many editors and phones do not open TS files directly.
Convert TS to M4A online free, no account required — M4A is an MPEG-4 audio file, usually holding AAC.
Change TS to M4A without losing quality — convert TS to M4A free in your browser.
Why won't my media player open the .ts file I recorded? A transport stream is written for broadcast, so many players expect a renamed or converted container before they accept it.
About M4A (AAC/ALAC)
M4A is an MPEG-4 audio file: the MP4 container holding only audio, usually AAC and sometimes Apple Lossless (ALAC).
Music bought on iTunes, iPhone voice memos and many podcast downloads.
Whether an M4A is lossy or lossless depends on the codec inside, which the file extension does not show.
Why convert audio to M4A? It wraps efficient AAC audio with chapter marks and cover art in one small file that Apple, Android and Windows all play.
What changes when you convert TS to M4A
- The soundtrack of the TS is re-encoded as M4A at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the M4A file contains the audio track of your TS, and the picture is dropped.
Settings you can change
Before you convert TS to M4A, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted M4A file is kept for 2 hours, then deleted.
TS to M4A: questions and answers
Does converting TS to M4A reduce quality?
The soundtrack of the TS is re-encoded as M4A at the default settings, so it is close to the original but not bit-identical.
What is the difference between TS and M4A?
TS is the broadcast and Blu-ray transport stream format. M4A is an MPEG-4 audio file, usually holding AAC.
Can I change the settings when converting TS to M4A?
Before you convert TS to M4A, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert TS to M4A?
No. You can convert TS to M4A without an account; signing in raises the file-size and daily limits.
How long is my converted M4A file kept?
The M4A file you convert from TS is kept for 2 hours, then deleted automatically.
When I convert TS to M4A, can I keep just the sound?
Only the sound is kept: the M4A file contains the audio track of your TS, and the picture is dropped.
Will converting TS to M4A change my original file?
No. The conversion reads your TS and writes a new M4A file, leaving your original TS file untouched.