Some computers have different USB controllers for each port. In this case, connecting to a different port may solve the problem. kbps mono – When using alkaline battery: Approx. 110 hours, When using NiMh battery: Approx. 74 hours Some recording media memory capacity is used as a management area, so the actual usable capacity will always be slightly less than the displayed capacity. Actually available recording times may be shorter than the figures shown here when making short recordings repeatedly (Equipment displays of available/elapsed recording times should be considered guideline values).

Olympus WS-853 Digital Voice Recorder with Built-In Stereo

Regardless of the amount of remaining memory, the maximum recording time per file is restricted to the following values.When recording with built-in microphone: 70Hz ～ 17 kHz (Frequency response upper limit is set by recording mode during.) MP3-format recording. kbps mono – When using alkaline battery: Approx. 48 hours, When using NiMh battery: Approx. 31 hours Available recording time will also vary due to differences in the available memory capacity of different microSD cards. Internal memory (8GB) 128 kbps: Approx. 130 hrs, 64 kbps: Approx. 260 hrs, 8 kbps: Approx. 2080 hrs