20 Recording; Recording Audio Files; Operation Of The Audio File - Kenwood TH-D74A User Manual

Digital transceivers
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20 RECORDING

RECORDING FUNCTION
You can record communications to a microSD memory card.
• Recording is performed when transmitting and when the
squelch is open. When transmission stops or the squelch
closes, recording is paused.
• Up to approximately 18 hours (2 GB) can be recorded
to one file. When the file being recorded exceeds 2 GB,
recording continues with a new file.
• Recording files are named as follows.
Example: 12202016_132051.wav (TH-D74A)
20122016_132051.wav (TH-D74E)
(File for which recording started at 13:20:51 on
December 20, 2016.)
• The recording audio file format is WAV.
Number of bits: 16 bits
Sampling frequency: 16 kHz
Number of channels: 1 (monaural)
• If the automatic power off (APO) time elapses during
recording, recording stops and turns the power OFF.
Note:
◆ The transceiver only supports recording to a microSD memory
card.
◆ A microSD memory card or microSDHC memory card is
not supplied with this transceiver. Purchase a commercially
available product.

RECORDING AUDIO FILES

Selecting the Recording Band
Select the recording band A or B.
1 Access Menu No. 302.
2 Select [A Band] or [B Band].
[A Band]: Records the sound of the band A.
[B Band]: Records the sound of the band B.
Recording Communication Audio
Set the recording function on to start recording. Even if the
recording function is on, recording will not start while the
squelch is closed.
1 Access Menu No. 301.
2 Select [Off] or [On].
[Off]: Turns off the recording function.
[On]: Turns on the recording function.
Note:
◆ If there is no free space on the microSD memory card when
recording starts or after recording has been started, a warning
tone sounds and the insufficient microSD memory card space
screen appears. Replace the microSD memory card with
another one.

OPERATION OF THE AUDIO FILE

Playing Audio Files
1 Access Menu No. 300.
The recording file list appears. Recorded audio files can
be played and cleared.
2 Select the file.
3 Press [MENU].
The recording file list menu appears.
4 Select [Play] and press [A/B].
Playback begins. When playback finishes, the recording
file list reappears.
Note:
◆ When the Menu No. 301 is [On], the recording file list does not
appear.
◆ If there is a problem with the format of an audio file, the error
screen appears and playback is not possible. Check the format
of the audio file.
Key Operations in playing audio files
Key
[ENT]
Pauses playback. Pressing it again resumes playback.
Stops playback. Pressing it again returns to the
[MODE]
frequency screen.
Holding down performs fast reverse playback.
]
[
Releasing it resumes playback.
Holding down performs fast forward playback.
[
]
Releasing it resumes playback.
Plays the file immediately above the file selected in the
[
]
recording file list.
Plays the file immediately below the file selected in the
[
]
recording file list.
20-1
Action

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