ACT (audio format)
Encyclopedia
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
.
However, 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 such as WAV is used instead (albeit at the expense of using up recorder memory more quickly).
There are different versions of ACT; files produced by later devices cannot be read by any free standard audio player and converter software, only by the supplied MP3 utilities.
; the converter usually used can be downloaded as part of MP3 Player Utilities.
Act files can be converted by numerous programs. See the external links below.
. A command line that converts an .act file to another file format is the following:
Download Windows version of amv-codec-tools and run it under Wine
:
S1 MP3 Player
S1 MP3 players are a type of digital audio players based on many different kinds of chipsets. The popular ones include Actions and ALI chipsets...
.
However, 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 such as WAV is used instead (albeit at the expense of using up recorder memory more quickly).
There are different versions of ACT; files produced by later devices cannot be read by any free standard audio player and converter software, only by the supplied MP3 utilities.
Using Windows
Devices which record in this format are usually supplied with an ACT to WAV converter program that runs under Microsoft WindowsMicrosoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...
; the converter usually used can be downloaded as part of MP3 Player Utilities.
Act files can be converted by numerous programs. See the external links below.
Using Linux
One command-line utility that is able to read .act files is SoXSoX
Sound eXchange, abbreviated SoX, is a free cross-platform digital audio editor, licensed under the GNU General Public License, and distributed by Chris Bagwell through SourceForge.net...
. A command line that converts an .act file to another file format is the following:
sox -i -r8k -tima -c1 infile.act outfile
Download Windows version of amv-codec-tools and run it under Wine
Wine (software)
Wine is a free software application that aims to allow computer programs written for Microsoft Windows to run on Unix-like operating systems. Wine also provides a software library, known as Winelib, against which developers can compile Windows applications to help port them to Unix-like...
:
wine amv-ffmpeg.exe -f act -i REC05.act REC05.wav
External links
- Logipole Konvertor
- Convert voice recorder .ACT files to .WAV
- NCH Software WavePad Audio Editor - there is a free and a paid version; both will read some .ACT files, but not those produced by more modern recorders.
- MP3 Player Tools 2.0 (in archive)
- ACT2WAV: another ACT to WAV Converter (in archive)
- All about ACT file
- SoX - Sound eXchange