What Is an ACT File and How FileViewPro Can Open It
File extension ACT file represents a proprietary ADPCM-style audio format typically created by small portable MP3/voice devices to store quick voice reminders and simple recordings. Unlike high-quality music formats, ACT files typically pack the signal into a narrow-band, ADPCM-compressed stream optimized for intelligible voice, not rich, full-range sound. Since relatively few current apps can open …
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