Accurately convert
Portuguese CAF files to text
Sonix automatically transcribes your Portuguese CAF files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Portuguese CAF files are long gone. Portuguese speech to text: Sonix has been independently reviewed the most accurate Portuguese automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their Portuguese CAF files to text
Use Sonix to quickly convert
Portuguese CAF 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 Portuguese CAF file~1 min
Click “Upload” and locate the Portuguese CAF file on your computer.
- 3Choose language: Portuguese~10 sec
Select Portuguese as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your CAF file~5 min
Sonix transcribes your Portuguese CAF file and converts it to Portuguese text.
- 5Polish your Portuguese transcript~2 min
Edit your Portuguese transcript directly in the browser to correct any misheard words.
- 6Export Portuguese text~10 sec
Export the Portuguese text to MS Word, PDF, subtitles, or plain text.
Understanding Portuguese CAF files
Portuguese has two major standards: Brazilian Portuguese and European Portuguese, which differ noticeably in pronunciation, rhythm, and some vocabulary. African varieties spoken in Angola, Mozambique, and other Lusophone countries generally follow the European standard, while Brazil itself has distinct regional accents such as Carioca, Paulista, and Northeastern speech.
CAF technical specifications
- Codec
- Various (Linear PCM, Apple Lossless, AAC, IMA4, others)
- Container
- Core Audio Format (Apple container)
- Typical bitrate
- Varies by codec; ~1,411 kbps for 16-bit/44.1 kHz stereo PCM, lower with AAC or Apple Lossless
- Sample rate
- Arbitrary; 44.1–192 kHz common in professional use
- Compression
- Container (varies)
Portuguese at a glance
- Speakers
- ~260 million speakers worldwide
- Writing system
- Latin alphabet (with diacritics such as ã, õ, ç, and é)
- Say hello
- Olá!
Frequently asked questions
How to improve the accuracy of your Portuguese transcripts?
Start by improving the quality of the Portuguese CAF 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 Portuguese CAF file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Portuguese CAF file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from CAF, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Portuguese with Sonix:
Why won't my CAF file play on Windows?
CAF is an Apple container that most Windows applications do not support natively. You can open it with a third-party player such as VLC, or convert it to WAV or MP3 for broader compatibility.
How large can a CAF file be?
CAF uses 64-bit file offsets, so there is no practical size limit and recordings can run for many hours. This is the main advantage over WAV and AIFF, which are capped at 4 GB.
Does Sonix support both Brazilian and European Portuguese?
Yes. You can upload audio or video in either variety, transcribe it, edit the transcript in your browser, and export it in a range of formats.
Can Sonix transcribe Portuguese audio with accented characters?
Yes. Portuguese transcripts include the language's diacritics, such as ã, õ, and ç, and they carry through to exported files.
Can I translate a Portuguese transcript into English?
Yes. After transcribing your Portuguese audio, you can translate the transcript into English or other supported languages and export the result.
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