Accurately convert
Welsh MTS files to text
Sonix automatically transcribes your Welsh MTS files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Welsh MTS files are long gone. Welsh speech to text: Sonix has been independently reviewed the most accurate Welsh automated transcription, translation, and subtitling platform.
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Thousands of Sonix customers convert their Welsh MTS files to text











Use Sonix to quickly convert
Welsh MTS files to text
- 1Log into your Sonix account~30 sec
If you don't have one, you can sign up for Sonix's free account — Your free trial includes 30 minutes of transcription and translation.
- 2Upload your Welsh MTS file~1 min
Click “Upload” and locate the Welsh MTS file on your computer.
- 3Choose language: Welsh~10 sec
Select Welsh as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your MTS file~5 min
Sonix transcribes your Welsh MTS file and converts it to Welsh text.
- 5Polish your Welsh transcript~2 min
Edit your Welsh transcript directly in the browser to correct any misheard words.
- 6Export Welsh text~10 sec
Export the Welsh text to MS Word, PDF, subtitles, or plain text.
Understanding Welsh MTS files
The main spoken split is between northern and southern Welsh, which differ in vowel pronunciation and everyday vocabulary (for example, llefrith versus llaeth for milk). Colloquial speech also diverges noticeably from formal literary Welsh, and a small Patagonian Welsh community survives in Argentina.
MTS technical specifications
- Codec
- H.264/AVC video with Dolby Digital (AC-3) or linear PCM audio
- Container
- MPEG-2 Transport Stream (AVCHD)
- Typical bitrate
- 5–24 Mbps video (up to 28 Mbps in AVCHD 2.0)
- Sample rate
- 48 kHz (audio track)
- Compression
- Lossy
Welsh at a glance
- Speakers
- ~600,000–900,000 speakers worldwide, mostly in Wales (survey estimates vary)
- Writing system
- Latin alphabet, with Welsh digraphs (ch, dd, ff, ng, ll, ph, rh, th) and circumflex accents marking long vowels (â, ê, î, ô, û, ŵ, ŷ)
- Say hello
- Helo
Frequently asked questions
How to improve the accuracy of your Welsh transcripts?
Start by improving the quality of the Welsh MTS file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the Welsh MTS file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Welsh MTS file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from MTS, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Welsh with Sonix:
Why won't my MTS file play on my computer?
MTS files use the AVCHD transport-stream structure, which some default media players do not support, and clips copied out of the camcorder's AVCHD folder can lose playback context. Opening the file in VLC or remuxing it to MP4 usually resolves the issue.
Do I need to convert MTS to MP4 before transcribing?
No. You can upload the MTS file directly, and its audio track is extracted and transcribed the same way as an MP4 upload.
Can Sonix transcribe Welsh audio and video?
Yes. Upload your Welsh recording, select Welsh as the language, and Sonix generates a transcript you can edit in the browser and export to formats such as DOCX, PDF, and SRT.
Does Welsh transcription handle both north and south Wales accents?
Sonix transcribes Welsh spoken across regions, though vocabulary and pronunciation differ between northern and southern Welsh, so it is worth reviewing regional words in the built-in editor.
Can Sonix transcribe recordings that mix Welsh and English?
Each file is transcribed in one selected language, so choose the language that dominates the recording and correct mixed-language passages in the editor.
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Sonix is by far the best transcription tool I have ever used.
I was amazed by your accuracy. What I used were not very good recordings. One with an American accent, another one Australian and many background noises. The transcript exceeded my expectations.
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