Operation Manual
17
7.3.5
Loop Recording
In the loop-recording mode, audio data is recorded into a specified flash memory segment in the loop. Once
this segment is full, the data recorded in the very beginning of the recording session will start being replaced
with the new data. Loop recording duration can be specified in hours and minutes (see Section 9.4.7).
Maximum loop duration cannot exceed 2 GB.
Loop recording may be used in combination with any other recording mode.
7.3.6
Recording Duration
Recording duration depends on the specified parameters and available memory. Table 2 lists approximate
recording time for different recording modes and sampling rate values.
Table 2: Recording duration for various modes and sampling rate values.
Mode
Recording duration with the sampling rate
22050 Hz
8000 Hz
μ-law 8 bit, mono
196 h
541 h
μ-law 8 bit, stereo
98 h
270 h
PCM 24 bit, mono
64 h
180 h
PCM 24 bit, stereo
32 h
90 h
Note, that any recording exceeding 2 GB will be divided into 2 files automatically. Maximum
recording size is 2 GB.
7.4
Recording Playback and Deletion
You can delete and play back recordings stored in the device memory either using device controls or by
means of the managing application.
Playback and deletion process with Voice Recorder Manager is described in Section 9.5.
To play back or delete recording with multifunction button on the device case (
4
in Figure 1), you must assign
the relevant function in the application (see Section 9.4.11).
This way, you can play back only the last recorded audio file.
By default, the button
4
in Figure 1 performs playback.
7.4.1
Recording Playback
If the playback function is enabled, to listen to the last recording stored in the memory, plug in the adapter
(Figure 5) and earphones into the jack on the device case and press the button (
4
in Figure 1). To stop
playback, press the button again.
7.4.2
Deleting Recordings
If the erase function is selected, to quickly erase all recordings from the voice recorder memory, press the
multifunction button (
4
in Figure 1) and hold it down for about 3 seconds. The red LED (
6
in Figure 1) will
indicate the process of file deletion and will go down as soon as all files are erased. All recordings will be
removed from the voice recorder memory.
