| Filename extension | .act[1] |
|---|---|
| Developed by | Actions Semiconductor |
| Type of format | audio file |
| Standard | most Chinese MP3 and MP4 players |
ACT is a lossy ADPCM 8 kbit/s compressed audio format recorded by most Chinese MP3 and MP4 players with a recording function, and voice recorders.
Many models of recorder that use the ACT format do so only for their lowest-quality recording setting; if the quality setting is increased then a different format, typically WAV, is used, creating much larger files.
There are different versions of ACT; files produced by later devices could not as of June 2009[update] be read by any free standard audio player and converter software, only by the supplied MP3 utilities.
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Transcription
Decoding .act files
Using Windows
Devices which record in this format are usually supplied with an ACT to WAV converter program that runs under Microsoft Windows; the converter usually used can be downloaded as part of MP3 Player Utilities. Konvertor (http://www.logipole.com/index.html) can play and convert the format too.
Using Linux
Linux command-line utility SoX supports .act files. The following command converts an .act file to another format:
sox -i -r8k -tima -c1 infile.act outfile
References
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This page was last edited on 19 October 2023, at 22:45