Atmel AT89C51SND1C User Manual page 17

3.5.8 Song Erasing
3.6 Voice Operating
Mode
3.6.1 File Format
3.6.2 Keypad Functions
Firmware Package User Guide
Icon
In order to free-up memory for message recording, an erase function has been imple-
mented. Pressing the "Erase" key, for more than 3 seconds, erases the currently
selected song.
This mode is used to store voice messages.
Figure 3-5. Display in Voice Operating Mode
Lock Status
Player/Recorder State
Files created are compatible with windows
media player. File format is mono 8 Khz 8-bit leading to 64 Kbits/s, thus 8 Kbytes of
memory per second.
Table 5 details the functionality of each key depending on the current state.
Table 5. Voice Mode Key Function
Key
M O D E
Description
Repeat A/B
B marker is set, repeat playing from A to B.
Voice Memory
Icon Icon
VOICEOO1.WAV
Message Name
™
pcm wav files and can be played using any
Description
Next Message
Select next voice message in memory.
Previous Message
Select previous voice message in memory.
Play (stop state)
Start playing of selected voice message.
Pause (play state)
Suspend playing of voice message.
Pause (record state)
Suspend recording of song message.
Stop (play state)
Stop playing of voice message.
Stop (record state)
Stop recording of voice message.
Mode (stop state)
Exit the voice operating mode and go to the tool operating mode.
Increase Control
Increase volume.
Decrease Control
Decrease volume.
Operating Description
Volume Playing
Level Time
2 0:00
4209A–MP3–12/02
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