Matters needing attention in using digital recording pen

Matters needing attention in using digital recording pen

Matters needing attention in using digital recording pen? With the continuous progress of society, people's needs are increasing, and digital products can be seen everywhere. Among them, digital recording pens are needed by many workers. Let me share the precautions for using digital recording pens?

Matters needing attention in using digital recording pen 1 switch

Press and hold the middle key D until the red light is on, then release it, and the recorder will be turned on, that is, it will enter the recording preparation state (the red light will be on all the time); Press the middle key of D for a long time, and the red light will go out, that is, turn it off.

record

After starting, in the recording preparation state (red light is on), press and hold the D key until the red light flashes, and then release it. The tape recorder began to record, and the red light went out after three seconds, but the tape recorder was still in the recording state and continued to record. Press the middle key of D again to stop recording, and the recorded content has been automatically saved as a WAV file. At this time, the red light lights up and stays on, and the recorder returns to the recording preparation state.

Play recording

When recording is ready (the red light is always on), press the D key briefly to start playing the recording file circularly, and the red light is always on and the yellow light flashes; Press the middle key of D again to stop playing the recording, and the recorder returns to the recording preparation state. In the recording preparation state, press and hold the D middle key to turn off the machine.

Volume increase/decrease

Press and hold the key on D for a long time to increase the volume while playing the recorded file; Long press d, press the key to reduce the volume;

In the state of playing music files, press and hold the key on D to increase the volume; Press and hold D, and press the key to lower the volume.

Forward/backward

In the state of playing the recording file, short press the key on D to enter the previous recording file; Press d briefly to enter the next recording file;

In the state of playing music files, press the key on D to enter the previous music file; Press D briefly, and then press the key to enter the next music file.

mode switch

In the recording preparation state, press the D key briefly to switch to the music playing preparation state (the yellow light is always on); When the music is ready to play, press the D key briefly to switch to the recording ready state (the red light remains on).

Play MP3 music

When the music is ready to play, press the D middle key to start playing MP3 music (if it cannot be played, please confirm whether there are music files). At this time, the yellow light flashes. When MP3 music in the tape recorder is played one by one, it will automatically cycle. When playing music, short press the middle key in D to stop playing music, and the yellow light will be on, then short press the middle key in D to continue playing; When the music is ready to play (the yellow light is always on), press and hold the D middle button to turn off the phone.

delete a file

Delete files After connecting to the computer, you can only delete music files or recorded files from the computer.

Matters needing attention in using digital recording pen

In order to maintain the good performance of the recording pen, please avoid placing or using the digital recording pen in the following places.

1, toilet or other damp places.

2, the sun exposure or close to heating equipment and other high temperature environment.

3. Where the temperature is too low.

4. dusty places.

Please do not disassemble, repair or replace the digital recording pen by yourself.

Short circuit, disassembly, heating or putting into fire will lead to leakage, heating and rupture of the battery, and may cause fire. When the recorder is not used for a long time, please take out the battery to prevent the battery from leaking and corroding the internal parts of the machine.

Avoid falling or strong collision of the digital recording pen, and don't press the LCD screen too hard, otherwise the LCD screen may be damaged or displayed abnormally. Please choose the appropriate volume, not too loud with headphones. If you feel tinnitus, please turn down the volume or stop using it.

Notes on the use of digital recording pen 2. Usage and notes of recording pen.

1. In shutdown mode, press the power-on key once to indicate standby state, and then press the key again to enter recording state. There is usually a yellow light or a blue light to indicate the status.

2. Press the stop button again to pause the recording in the recording state, and then press the stop button again to archive the recording file.

3. In standby mode, press the button to record again.

4. In standby mode, press and hold the power-on key for 3 seconds to directly shut down.

5. The battery will automatically shut down after use, and the system will automatically save the recording file before shutdown.

6. If you use a rechargeable battery, you can charge it through USB.

7. To recover the recorded file, you can directly copy the recorded file after connecting the computer with USB cable.

How to use the recording pen?

1. Turn the machine on and off. Press and hold the middle button of D until the red light comes on, and then release it. When the video recorder is turned on, it will enter the recording preparation state. Press and hold the middle button of D until the red light goes out, and then turn it off.

2. After starting the machine, in the recording preparation state, press and hold the middle key D until the red light flashes, and the tape recorder will start recording. After three seconds, the red light goes out, but the recorder is still recording.

Continue recording, and then press the middle key of D to stop recording. The recorded content has been automatically saved as a WAV file. At this time, the red light lights up and stays on, and the recorder returns to the recording preparation state.

Working principle and performance index of recording pen

1, the working principle of recording pen

Digital recording pen samples and encodes the analog signal of sound, converts the analog signal into digital signal through digital-to-analog converter, and then compresses and stores it. Digital signals will not be distorted, and even if they are copied repeatedly, sound information will not be lost.

2. Performance index of recording pen

(1) recording time. According to the different storage capacity and compression algorithm between different products, the recording time is different. At present, the recording time of digital recording pen is about 200-500 hours, and the longest time can reach 1000 hours.

(2) battery life. At present, most digital recording pens use No.7 AAA batteries, some small products use button cell, and some products have built-in rechargeable batteries. The general digital recording pen can work continuously for about 15 hours.

(3) Sound quality effect. Usually, the sound quality of digital recording pen is better than that of traditional tape recorder. Recording pens usually have recording modes such as SP and LP. SP stands for short-time mode, with low compression rate and good sound quality, but short recording time. LP stands for LongPlay, that is, long-time mode, with high compression rate and a certain decline in sound quality.

(4) storage mode. Digital recording pens all use analog recording and use built-in flash memory to store recording information. The characteristic of flash memory is that the stored information will not be lost after power failure, and it can withstand millions of repeated erasures in theory, so the cost of repeated use is zero. You can copy the recorded information by connecting to a computer, or you can play it directly in a tape recorder.