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File extension .ACT is a low-bitrate digital voice-recorder format commonly found on budget digital voice recorders and older MP3 gadgets to store quick voice reminders and simple recordings. Rather than holding CD-quality audio, an .ACT file generally uses a narrow-band ADPCM or similar codec at a low sampling rate so that hours of talking can …
File extension ACT file represents a low-bitrate digital voice-recorder format used by many inexpensive MP3 players and handheld recorders to store speech-oriented audio clips. Instead of saving full-bandwidth, uncompressed PCM like a WAV file, an ACT recording usually contains ADPCM-encoded audio at a relatively low sample rate (often around 8 kHz), which keeps file sizes …
File extension ACT file represents a compressed voice-recording format used by many inexpensive MP3 players and handheld recorders 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. Because native ACT support is rare …