High Performance Business REC 16Bit 48Khz Pcm & Mp3 -4GB

Outstanding reliability for business use

The DM-720 includes high quality features packed into an efficient, smart body.

Equipped with an easy-to-use interface, editing functionsthat extend audio use, and various playback functions, this recorder provides outstanding practicality and reliability to support your business needs.

High quality recording

The 3-microphone “TRESMIC” system available on the DM-720 delivers high quality sound recording.

The recorder is also equipped with many more functions to further enhance sound recording quality.

“TRESMIC” Three-microphone system for superior sound

The DM-720 achieves high S/N ratio thanks to its low-noise microphone design.

The stereo microphones arranged outward at an angle of 90° produce a natural stereo feeling, while an omnidirectional center microphone compensates for low-range sounds.

By increasing the size of peripheral openings and capturing sound from both front and rear, the resultant phase difference can be used to maximise directional microphone characteristics.

When the omnidirectional center microphone is on, frequencies from 20Hz to 20kHz are picked up (60Hz to20kHz when off), compensating for low-range sounds.

“TRESMIC” Three-microphone system for superior sound

Frequency characteristic

Zoom microphone for recording from a distance

With the latest directional quality control technologies, switching to directional microphone mode unleashes the power of proximity recording in noisy environments, such as at lectures or when recording from a distant position.

You can adjust the directivity by operating with the "-" and "+" buttons. The new zoom microphone mode adjusts the recording level higher according to the zoom.

Compact recorder with 48 kHz/ 16 bit linear PCM recording

Create high quality recordings using the linear PCMformat.

With a sampling frequency of 48 kHz, this linear PCM format easily outclasses the 44.1 kHz / 16 bits of CD-quality audio.

While this may surpass your needs in business, it is useful for those using the digital voice recorder for hobby or music, providing the quality to easily make their own CDs.

Automatic sensitivity adjustment with Intelligent Auto Mode

To make listening to your recordings more comfortable, the Intelligent Auto Mode adjusts the microphone sensitivity to match the volume of the sound source.

When a speaker is talking loudly, the recorder reduces the input level, and for soft voices, the recorder increases the input level.

In this way, the function automatically keeps track of the input level and simultaneously adjust therecording level so that it always records in the best quality and provides and even level of volume.

Low-cut filter eliminates extraneous noise

During recording, the low-cut filter is used to cut the sound at frequencies of 300 Hz and lower during the recording process.

Typical examples of these lower frequenciesinclude air conditioner noise, projector fan noise, and evenwind noise while outside.

By cutting the lower frequency during recording your audio is natural sounding and free of background noise and distortion during playback.

Playback functions

The DM-720 includes a variety of useful playback functions for all business situations.

Functions include Voice Playback, to skip non-speech parts of your recordings, Voice Balancer to ensure everyone in your recording is heard, and noise cancellation technology to remove unwanted ambient noise.

Create meeting minutes efficiently with Voice Playback

By using the Voice Playback function, you can skip non-voice parts during playback, and only play parts of the file where there is voice.

This feature makes transcribing meeting minutes efficient. For example, if 70% of the recorded file contains speech, you can finish listening to a 1-hour recording in about 40 minutes.

Once you finish recording, use Voice Playback to save time and improve playback for transcription.

Noise cancellation for clear playback quality

The noise cancellation function powerfully reduces unwanted ambient sounds such as air conditioner noise or projector fan noise to enable clear playback quality.

This function is effective when playing back meeting recordings.

Recording containing background noise

Recording with noise cancellation applied

Voice Balancer delivers audio quality that is easier to hear

When voices are at different volume levels dueto the distance and physical relationship to the recorder, the Voice Balancer automatically makes smaller voices louder, and ensures that louder voices stay below a given level, providing playback where everyone is audible.

This comes in handy when recording sound sources from many positions, such as in a large meeting or conference.

The voice filter function operates simultaneously, and reduces the prominent noise produced when amplifying small sounds.

By eliminating the lower and higher frequenciesduring playback, recorded voice is further enhanced.

This enables much clearer playback than the functions offered by our competitors.

Possible use of the Voice Balancer

Effective language learning through Speech Shadowing

"Transcription" mode is convenient when you want to create minutes from your meeting recordings.

While transcribing, it is necessary to frequently repeat play and stop to check the content.

As such, when resuming playback, the recorder will automatically playback from 3 seconds before playback was stopped, so that you can easily review the content you need.

The fast forward function is set to a preset 3.5x speed so that you can conveniently skip the silences inyour recording.

urthermore, the Voice Balancer helps to normalise audio levels when recording speakers of different volume in a meeting

Create meeting minutes efficiently with "Transcription mode"

"Transcription" mode is convenient when you want to create minutes from your meeting recordings.

While transcribing, it is necessary to frequently repeat play and stop to check the content.

As such, when resuming playback, the recorder will automatically playback from 3 seconds before playback was stopped, so that you can easily review the content you need.

The fast forward function is set to a preset 3.5x speed so that you can conveniently skip the silences inyour recording. Furthermore, the Voice Balancer helps to normalise audio levels when recording speakers of different volume in a meeting

Usability

The recorder includes an easy-to-use interface, andconvenient functions that extend your use.

The DM-720 has a built-in USB connector with recharge function, expandable microSD memory, and voice guidance.

A convenient clip stand attachment is included, to allow you to attach the recorder to a pocket or notebook.

Direct PC connection without a cable

The built-in USB connector can be easily deployed and stored using the slide lever.

With this feature, you can connect directly to a computer without using a cable or software.

Not only can you save and share your recordings, the DM-720 can also be recharged via USB withouthaving to remove the battery, and the recorder can also be used as a USB memory device.

Attachment usable as both a clip and a stand

The recorder also comes with a handy clip stand attachment that can be attached to the rear of the recorder body.

The clip stand can be attached to your pocket or notebook, or can be used as a stand to face the recorder towards the audio source, to reduce noise when the recorder is placed directly on a tabletop.

Voice guidance and other usability improvements

The voice guidance feature provides audio announcements of the recorder operating conditions in an easy to understand spoken human voice.

For further ease-of-use, the operation buttons have been optimised to ensure that the recorder can be operated without having to look at the recorder display.

Select from 5 recording scenes

The DM-720 comes with recording scenes that providepreset settings optimised for different recording environments.

When the "Conference" scene is selected, the Intelligent Auto Mode is enabled so that conferences can be recorded at the optimum recording level.

By selecting the "Lecture" scene, the Zoom Mic function is used so that the voice of lecturers can be captured reliably.

Further scenes include "Meeting", "Dictation", and "DNS" mode which is ideal for voice recognition.

Using recording scenes will aid you in obtaining failure-free, high quality recording.

The File Divide function makes it easier to handle longer recordings

Recordings of long meetings with many topics, or audio files that are too big to send via email can be divided on the recorder without having to use a computer.

This makes it easier to manage files according to the content, or divide files into a smaller size to send via email.

microSD card slot

The DM-720 includes a micro SD card slot that supports cards of up to 32 GB in size.

You can select whether to use the 8GB of built-in memory or a micro SD card from the recorder menu.

File searching is easy with the Calendar function

Audio files stored on the unit are automatically organised by date.Because files are displayed in a calendar format, you can quickly find the file you are looking for bythe recording date.

Specifications

Recording formats

Linear PCM format / MP3 format

Sampling frequency

Linear PCM format	[48.0 kHz / 16 bit]: 48.0kHz [44.1 kHz / 16 bit]: 44.1 kHz
MP3 format	[320 kbps]: 44.1 kHz [128 kbps]: 44.1 kHz [64 kbps (mono)]: 44.1 kHz [8 kbps (mono)]: 11.025 kHz

Maximum headphone output

Recorder: ≦ 150 mV (according to EN 50332-2)

Recording media

Built-in NANDflash memory	4 GB
microSD card	Supports 2GB to 32GB

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.

Speaker

Built-in Ø18mm dynamic speaker

Maximum working output: 150mW (8Ω speaker)

Microphone Jack

Ø3.5mm, impedance 2kΩ

Earphone Jack

Ø3.5mm, impedance 8Ω minimum

Power source

Specified voltage	1.5 V
Battery	AAA dry-cell battery x1 (LR03) or Ni-MH rechargeable battery x1
External power supply	USB Connecting AC Adapter (model A514; DC5V)

External dimensions

105.9 × 39.6 × 14.4 mm

Not including largest projection

Weight

72g

including battery

Operating temperature

0 to 42°C (32 to 107.6°F)

Frequency response

When recording from microphone jack

Linear PCM format	[48.0 kHz / 16 bit]: 20 Hz - 23 kHz [44.1 kHz / 16 bit]: 20 Hz - 21 kHz
MP3 format	[320 kbps]: 20 Hz - 21 kHz [128 kbps]: 20 Hz - 17 kHz [64 kbps (mono)]: 20 Hz - 13 kHz [8 kbps (mono)]: 20 Hz - 3.5 kHz

When recording with built-in microphone

Recoding(centre microphone ON)	20 Hz - 20 kHz
Recoding(centre microphone OFF)	60 Hz - 20 kHz

Frequency response upper limit is set by recording mode during MP3-format recording.

During playback

20 Hz - 20 kHz

The upper and lower limit values of the frequency response depend on each recording format.

Battery life

When recording with built-in stereo microphone (using internal memory)

Recording mode		Alkaline dry cell battery	Nickel-metal hydride rechargeable battery
Linear PCM format	48.0 kHz / 16 bit	26 hours (approx.)	20 hours (approx.)
Linear PCM format	44.1 kHz / 16 bit	28 hours (approx.)	21 hours (approx.)
MP3 format	320 kbps	31 hours (approx.)	22 hours (approx.)
	128 kbps	35 hours (approx.)	25 hours (approx.)
	64 kbps mono	39 hours (approx.)	28 hours (approx.)
	8 kbps mono	52 hours (approx.)	38 hours (approx.)

The battery life figures shown here were determined using an Olympus test method (When [Mic Select] is set to [Central Mic Off], and [LED] is set to [Off]). Actual batterylife figures will vary greatly according to the battery used and usage conditions (Changingthe playback speed or using the [Zoom Mic], [Noise Cancel] and [Voice Balancer] functions may affect the battery life).
Battery life will be shorter when usinga nickel-metal hydride rechargeable battery that has been used repeatedly.
Battery life will be shorter when usinga microSD card.

During audio file playback (all playback modes)

During speaker playback

Recording mode		Alkaline dry cell battery	Nickel-metal hydride rechargeable battery
Linear PCM format	48.0 kHz / 16 bit	13 hours (approx.)	11 hours (approx.)
Linear PCM format	44.1 kHz / 16 bit	13 hours (approx.)	11 hours (approx.)
MP3 format	320 kbps	13 hours (approx.)	11 hours (approx.)
	128 kbps	13 hours (approx.)	11 hours (approx.)
	64 kbps mono	13 hours (approx.)	11 hours (approx.)
	8 kbps mono	13 hours (approx.)	11 hours (approx.)

The battery life figures shown here were determined using an Olympus test method (When [Mic Select] is set to [Central Mic Off], and [LED] is set to [Off]). Actual batterylife figures will vary greatly according to the battery used and usage conditions (Changingthe playback speed or using the [Zoom Mic], [Noise Cancel] and [Voice Balancer] functions may affect the battery life).
Battery life will be shorter when usinga nickel-metal hydride rechargeable battery that has been used repeatedly.
Battery life will be shorter when usinga microSD card.

During earphone playback

Recording mode		Alkaline dry cell battery	Nickel-metal hydride rechargeable battery
Linear PCM format	48.0 kHz / 16 bit	26 hours (approx.)	20 hours (approx.)
Linear PCM format	44.1 kHz / 16 bit	28 hours (approx.)	21 hours (approx.)
MP3 format	320 kbps	30 hours (approx.)	22 hours (approx.)
	128 kbps	30 hours (approx.)	22 hours (approx.)
	64 kbps mono	31 hours (approx.)	22 hours (approx.)
	8 kbps mono	35 hours (approx.)	25 hours (approx.)

The battery life figures shown here were determined using an Olympus test method (When [Mic Select] is set to [Central Mic Off], and [LED] is set to [Off]). Actual batterylife figures will vary greatly according to the battery used and usage conditions (Changingthe playback speed or using the [Zoom Mic], [Noise Cancel] and [Voice Balancer] functions may affect the battery life).
Battery life will be shorter when usinga nickel-metal hydride rechargeable battery that has been used repeatedly.
Battery life will be shorter when usinga microSD card.

Recording time

Linear PCM format

Recording mode		Recording mode
Recording mode		48.0 kHz/16 bit	44.1 kHz/16 bit
Internal memory	4 GB	5 hours (approx.)	5 hours, 30 minutes (approx.)
microSD card	32 GB	44 hours (approx.)	48 hours (approx.)
	16 GB	22 hours (approx.)	23 hours, 30 minutes (approx.)
	8 GB	11 hours (approx.)	11 hours, 30 minutes (approx.)

MP3 format

Recording mode		Recording mode
Recording mode		320 kbps	128 kbps	64 kbps mono	8 kbps mono
Internal memory	4 GB	24 hours, 30minutes (approx.)	61 hours (approx.)	123 hours (approx.)	985 hours (approx.)
microSD card	32 GB	212 hours (approx.)	530 hours (approx.)	1060 hours (approx.)	8480 hours (approx.)
	16 GB	105 hours (approx.)	264 hours (approx.)	525 hours (approx.)	4220 hours (approx.)
	8 GB	52 hours (approx.)	132 hours (approx.)	264 hours (approx.)	2110 hours (approx.)

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 beconsidered guideline values).
Available recording time will also varydue to differences in the available memory capacity of different microSD cards.

Maximum recording time per file

Recording mode		Recording time
Linear PCM format	48.0 kHz/16 bit	3 hours (approx.)
Linear PCM format	44.1 kHz/16 bit	3 hours, 20 minutes (approx.)
MP3 format	320 kbps	29 hours, 40 minutes (approx.)
	128 kbps	74 hours, 30 minutes (approx.)
	64 kbps mono	149 hours (approx.)
	8 kbps mono	1193 hours (approx.)

*The maximum file size is limited to about 4GB in the MP3 format, and to about 2 GB in the linearPCM (WAV) format.
*Regardless of the amount of remaining memory, the maximum recording time per file is restricted tothe following values.