Technology to achieve ultrahigh-quality sound

The microphone and amplifier circuits have been completely redesigned to achieve superior frequency response and the maximum sound pressure level of 140dB SPL. The result is astounding, ultra high quality sound.

Newly designed high-performance directional stereo microphones with 90° layout

A. Microphone case
B. Screen mesh
C. Side net
D. Microphone unit
E. Shock absorber
F. Microphone holder

To get the most out of basic performance such as frequency response and directional characteristics, focus was placed on the size of the microphone casings and the shape of the openings. The left and right microphone units are placed angled outward at a 90 degrees angle to achieve a stereo sound with a natural ambience.

Optimally designed microphone chambers reduce unwanted reflected sound

Optimally designed microphone chambers keep the generation of unwanted reflected sound (noise) to a minimum.

Frequency response: 20Hz to 20,000Hz

The optimally designed microphones and circuits have a wide frequency response. The result of this is a recorder with rich sound quality that excels at reproducing low frequencies, such as the sound of bass drums and bass guitars.

High-quality sound amplifier circuit with low noise and high S/N ratio

To transfer and amplify the sounds captured by the microphones as faithfully as possible, Olympus' design focuses on sound quality in its signal processing circuitry. The amplifier components include independent low noise and distortion amplifier signals for the left and right channels. Eliminating cross-channel interference enables clear signal transmission and achieves a high signal-to-noise (S/N) ratio. Analogue circuits, which perform delicate processing of the electric signals that affect subtle nuances in the sound, include isolated power supply circuits. This reduces the minute interference from the power supply to help improve the S/N ratio. In addition, the boards for system control (digital) and audio have been separated to prevent interference noise and achieve low-noise signal transmission.

  • Audio circuit board
    A. Capless class-D amplifier for speaker
    B. Microphone amplifier
    C. Audio circuit-dedicated power circuit
    D. Instrumentation amplifier for XRL input
    E. Audio control IC (codec)
    F. Class-G amplifier for earphone
  • System circuit board
    A. Multimedia processor
    B. Power manager IC

Impressive maximum sound pressure level of 140 dB SPL breaking the mould of conventional recorders

If sound that exceeds the maximum sound pressure level of the recorder is recorded, clipping will occur even if the recording level is decreased. Therefore, measures such as moving the microphone extremely far away from the sound source have been required up until now, but a good result was not always possible depending on the recording environment. For that reason, we have made sure that the LS-100 achieves the highest maximum sound pressure level for a recorder of 140 dB SPL. This is a level that was previously unthinkable with conventional recorders. It means that the explosive sound of rock music or loud sound of drums can be recorded without clipping.

Examples of sound pressure levels of musical instruments and music

110dB Alto sax, piano (professional), vocal (amateur), brass instruments
120dB Tenor sax, vocal (professional), live club performance, orchestra
130dB Rock band concert, percussion, conga, drums, etc.

XLR and phone combo jacks

XLR and phone combo jacks placed at the bottom

24V/48V phantom power compatible XLR and standard phone combo jacks

This model comes with 24V/48V phantom power compatible XLR and standard phone combo jacks. This means that you can connect a guitar, bass, keyboard, or other musical instrument directly to the LS-100. The recorder incorporates an independent instrumentation amplifier so noise is reduced to achieve a high S/N ratio even when a very long cable is used.

Connecting a musical instrument

* Recommended to connect via an amplifier.

When connecting a monaural device, connect it to the L combo jack. Connect a musical instrument that outputs stereo such as a keyboard to both the L and R combo jacks.

Connecting a microphone

When connecting a dynamic microphone or condenser microphone, connect it to either the L or R combo jack. When phantom power is required, turn on the XLR Power switch of the XLR and standard phone combo jack to which the microphone is connected.

Independent adjustment of left and right recording levels

The recording levels can be finely adjusted even if different devices are connected to the left and right XLR.

Lissajous function for detecting and adjusting the phase difference of the left and right XLR microphones

This function automatically measures the phase distance to determine the distance between the microphones and the sound source for studio recording and other applications. You can adjust or reproduce the recording conditions by adjusting the position and orientation of the XLR microphones while checking the Lissajous waveforms.

Multitrack functionality brings fun to the creative process

Multitrack recording allows you to mix together multiple separately-recorded sound sources to create a single stream of sound. A class-leading maximum of eight tracks per project is possible. Now you can enjoy full-fledged song writing in an accessible format.

Multitrack recording and editing facilitates high-level recording

Multitrack recording allows you to mix together multiple, separately recorded, sound sources to create a single stream of sound. A class-leading maximum of eight tracks per project is possible. Now you can enjoy fully fledged song writing in an accessible format.

Example of using multitrack recording

The following is an example of creating a one-person band by playing various instruments in succession and then mixing the recordings together.

Track 1: Record the drums

Record the drums first on Track 1 to set the tempo of the performance. Connect headphones to check the exact tempo with the metronome function.

Track 2: Record the bass.

Record the bass on Track 2 while listening to the drums of Track 1. Any mistakes or corrections will not affect Track 1 so you can re-record as many times as you want.

Track 3: Record the guitar.

Record the guitar on Track 3 while playing back either just Track 1 or both Track 1 and Track 2.

Track 4: Record the vocals.

Record the vocals on Track 4 while playing back Track 1 to 3 that you recorded up to now. You can even record additional tracks for the sub vocals of the chorus and harmonic parts yourself.

Simultaneous editing of up to eight tracks

A. Mute
B. Sound volume
C. Left and right balance

Up to eight tracks can be mixed at the same time. All operations are possible with the screen level meters including using the mute function to turn on or off each track, using the volume controls to adjust the volume balance of parts, and using the left and right balance (pan function) to adjust the positional relationship of musical instruments, so anybody can make music they will be satisfied with.

Bounce (mixing down tracks)

Output up to 8 tracks to a stereo audio file.

Writing to CD and MP3 conversion

The completed audio file can be written to a data CD in a directly connected commercially available CD drive. You can also convert the file to MP3 and then distribute it over the Internet via a PC.

Useful functions

Professional videos combined with hifi sound: The LS-100 Linear PCM Recorder and Olympus OM-D[*]

While the OM-D already offers impressive audio recording capabilities, anyone who wishes to record in hifi quality should make use of an external Linear PCM audio recorder, such as the one from the Olympus LS series. Connect the Olympus OM-D E-M1/E-M5 Mark II and the Olympus LS-100 with a separately available audio cable. The LS-100 records in the highest possible audio quality while the camera captures the video images in Full HD splendor. Use the enclosed USB cable for synchronised PCM audio and video movie recording. The recorder can be easily connected to the camera hot-shoe using a separately available adapter. The LS-100 can generate a quick "slate tone," which adds a simultaneous quick tone to both the audio track on the PCM recorder and in-camera audio, making the separate audio tracks easy to sync up in post-production.

Overdubbing for recording sound on top of existing recorded data

Existing recorded data can be overdubbed. While similar to the multitrack function, this is a way to enjoy overdubbing in a simpler and more direct way. For private enjoyment, you can even use sources such as music CDs to make an original recording in which you perform together with pro musicians. This is also a useful feature for karaoke-type uses, for adding sound effects such as the bustle of the city, train sounds or bird calls, and for adding subtle arrangements on top of existing data to make something original.

  • A. Recorded sound
    B. Overdubbing
    C. Original sound

Metronome function serves as a rhythm guide during recording and can also be used when practicing an instrument

Normal metronome screen / Screen for recording while listening to the metronome

There is a metronome function that can be used for practicing an instrument as well as a rhythm guide during recording.

Metronome settings
Count down / Tempo / Rhythm pattern / Sound / Volume

Tuner function enables fine tuning

This function includes Calibration, Chromatic Tuner and Guitar and Bass Mode, enabling you to perform accurate tuning according to the type of instrument.

  • Calibration Reference pitch A can be adjusted between 435Hz and 445Hz in 1Hz increments.
  • Chromatic Tuner supports all the musical scales and allows you to tune your instrument by adjusting the deviation between the input instrument sound and the reference tone.
  • Guitar and Bass Mode Easily tune your instrument by plucking a single note.

4GB of internal memory and SD card slot supporting 64GB SDXC cards

There is 4GB or internal memory and an external memory slot with support for the very versatile SD, SDHC, and SDXC (up to 64GB) cards.

Support for variety of recording formats including 96kHz/24bit linear PCM and MP3

Support is included for both the 96kHz/24bit linear PCM (WAV) format enabling high quality recording and playback with a dynamic range surpassing that of music CDs and the highly versatile MP3 format.

Conversion of recorded linear PCM (WAV) data to MP3 in the recorder

This function is for converting WAV files saved in PCM format to MP3 files with a bit rate of 128kbps. This allows you to decrease the size of large WAV files.

Limiter and compressor function useful for preventing clipping during manual recording

There is a limiter function that allows you to adjust the recording level manually. It suppresses distortion caused by sudden loud sounds. There is also a compressor function for compressing while maintaining the overall balance.

Microphone gain function for changing the input sensitivity

The input sensitivity can be changed to match your recording environment or intended purpose. This function supports not only manual mode but also auto mode.

Low cut filter cuts noise in two steps

You can use the low cut filter to cut the noise in two steps according to the types of noise, such as that of an air conditioner, projector, and wind.

  • Cut low frequency noise of 300 Hz or less: Cutting of various types of low-frequency noises.
  • Cut low frequency noise of 100 Hz or less: Used when you want to cut, for example, the air conditioner noise that interferes with the recording of the low frequency sound.

Pre-recording function for recording from two seconds before the start of recording

Pre-recording is a function for continuing recording from up to two seconds before the start of recording. For example, when recording a small bird singing, this function will start recording up to two seconds before the bird starts singing if you press the recording button the moment the bird starts singing.

Playback speed adjustable between 50% and 400% without altering the pitch

The playback speed can be changed between 50% and 400% without changing the pitch of playback.

Segment repeat function for playing back a section of a file repeatedly

You can repeatedly play back one section of the file being played.

Convenient internal charging enables charging even with a USB connection

The battery can be charged while it is still in the recorder. You can also connect the recorder to a PC via USB to charge the battery from the power supplied from the PC.

Voice guide function for notifying of operating conditions by voice

This convenient feature gives audio announcements of recorder operating conditions.

Convenient file splitting function

Large files or files with long recording times can be split.

Support for optional remote control RS30W

You can use the dedicated remote control RS30W (sold separately) to start and stop recording remotely.