ADPCM Compressed Audio – file format by Actions Semiconductor ACT (ADPCM Compressed Audio) is a file extension developed by Actions Semiconductor. It is used for storing audio data that has been compressed using the Adaptive Differential Pulse Code Modulation (ADPCM) algorithm. ACT files are typically found on devices that use the Actions Semiconductor chipsets, such as MP3 players and smartphones.
How to Open ACT Files
To open an ACT file, double-click on it. This should automatically launch the default program associated with ACT files. If you do not have a program associated with ACT files, you can download one of the above-listed programs and install it.
Once you have a program installed that can open ACT files, simply double-click on the file to launch the program and begin playing the audio.
Tips for Opening ACT Files
If you are having trouble opening an ACT file, try the following:
ACT File Format
ACT (ADPCM Compressed Audio) is a proprietary audio file format developed by Actions Semiconductor, primarily used in action cameras and other consumer electronics devices. It employs Adaptive Differential Pulse Code Modulation (ADPCM) to compress audio data, resulting in reduced file sizes while maintaining acceptable sound quality. ACT files typically contain mono or stereo audio tracks encoded at a sample rate of 8 kHz or 16 kHz.
Key Features and Usage
ACT files offer several advantages over uncompressed audio formats. Their smaller file size allows for efficient storage and transmission, making them suitable for devices with limited storage capacity or bandwidth. Furthermore, the ADPCM compression technique preserves audio quality by maintaining the essential spectral characteristics of the original signal. ACT files are commonly found in action cameras, drones, and other portable audio devices where file size optimization is a critical consideration. They are also used in certain multimedia applications and software tools that support the ACT format.