New updated - "Mosquitone Detector" ver 2.0


"Mosquitone Detector" has been updated to ver 2.0.

"Mosquitone Detector" is a sound measurement app that detects high frequency noises and ultrasonic sounds hard to hear for human ears.

It may have been exposed to artificial high frequency noise while you do not notice. This app can detect and visualize such high frequency noises.

For example, there are increasing cases where high-frequency noise generators are installed in various places as a purpose of repelling young people and beast pests using very high frequency mosquito noises that can not be heard by general adults.

Especially for young children, there are cases that they stay in the bad place even though on a very uncomfortable noise environment because adults can not recognize at all.

Please use this app to find the high frequency noise, so it will help you to quickly get away from the bad spot or remove the noise source.

- Detection of high frequency sound and ultrasonic wave, and display the peak frequency of the highest level. (Detection mode: DETECT)
- Search for sound source direction (Search mode: SEARCH): 360 degrees horizontally
- Detectable frequency range: 8kHz - 23kHz (2 band division)

In the latest version, the detectable frequency band has been extended. You can select the frequency band you want to detect from 16kHz or more or less than 16kHz.

Detection mode finds an inaudible high frequency and ultrasonic sound in the frequency band more than 16 kHz (or less than 16 kHz).

[Detection mode]
mtd-detect_v200.jpg mtd-detect-L_v200.jpg

"Search mode" finds the direction of occurrence of the high-frequency sound source that detected the peak frequency. It can be used only when high frequency or ultrasonic sound is founded in “Detection mode".

[Search mode]
mtd-search_v200.jpg mtd-search-L_v200.jpg

If you are interested in "Mosquitone Detector" app, please click the following link to display on the product information of App StoreTM.

posted by toons at 23:59 | News


FAQ-E014: What is the background noise? Its influence?

FAQ-E014: What is the background noise? Its influence?

The background noise is a sound that exists in a certain place other than the target sound when considering a specific sound.

In the case of measuring the noise level of a specific steady noise, it may be affected by the background noise.

When measuring the noise level, if the difference between the indicated value of the sound level meter with and without the noise is 10 dB or more, the influence of the background noise can be almost ignored.

However, when it is less than 10 dB, it cannot be ignored, and the noise level of only steady noise can be estimated by correcting the following table.
Note that this correction is for stationary noise and cannot be applied when the background noise level fluctuates. The difference from the background noise level must be at least 3 dB.
# Measurement value difference : Correction value (unit: dB)
     3         : -3.0
     4         : -2.3
     5         : -1.7
     6         : -1.25
     7         : -0.95
     8         : -0.75
     9         : -0.60
    10          : -0.45

* Note: ISO 1996-1 (JIS Z 8731: 1999 “Description and measurement of environmental noise”)

For example, if a certain machine is measured to be 55 dBA and the background noise when it is stopped is measured to be 50 dBA. Since the level difference is 5 dB, the level is estimated to be 53.3 dBA.

* Applicable apps :
- Sound Level Analyzer PRO
- Sound Level Analyzer
- Sound Level Analyzer Lite - Free of charge!
posted by toons at 19:53 | FAQ


1.17 - Sincerest condolences


25 years since the Great Hanshin-Awaji Earthquake.

On that day on 1995, I lived in Kobe city.

I close my address by offering my sincerest condolences to the over six thousand people who lost their lived in the earthquake.

It was a violent shaking that I had never experienced, and I didn't know what had happened until it was bright.

At dawn, I realized that the city and people's lives were destroyed in an instant.

I was not injured miraculously, but the reinforced concrete apartment where I lived was in a dangerous situation where the ground floor was compressed and crushed, leaking water here and there.

I remember being afraid and desperate again.


Where is the epicenter? Where is the safe place to escape? What should I do?

Both the electric power and rhe communication were lost, and Kobe had no information at all at that time.

And I remember going to the nearest elementary school and taking care of the victims who lost their homes.

Since that day, my life and my outlook on life have changed dramatically.

Twenty-five years have passed and the beautiful cityscape has returned to Kobe, but those who have experienced that day will only have the sad memories of the day.

Today, I am renewed my own oath.
posted by toons at 23:47 | diary


"Nokori Fuku" of Kyoto Ebisu Shrine


I visited the Kyoto Ebisu Shrine yesterday. The New Year's "Toka Ebisu" festival is being held.


On the last day, "Nokori Fuku" of this festival, there were quite few people and I felt very relaxed.


It seems that the timing was missed, and Maiko from Gion-machi and Miyagawa-chou was awarded rice cake the day before.


I knocked on the side wall of the main hall and went home.

Since Ebisu is an elderly god, it seems to inform that "I came to visit" so that knocks the side wall next to his living room.
posted by toons at 08:19 | diary


Imamiya Ebisu in Osaka


I visited the Imamiya Ebisu Shrine dedicated to a god of good commerce and bountiful fishing, praying for the success of the year’s business.


Due to the good weather, it was warmer than usual winter and I felt little hot in the crowd.


Today was not as crowded as I thought. Probably It had been very crowded for the main festival, "Hon Ebisu" yesterday.


Many people were gathering to get the lucky bamboo grass, ”Fukuzasa”.


There were long waiting queues in the gong behind the main shrine.


On my way home, a contrail was just forming in the blue sky. A sign of good things!

posted by toons at 23:52 | diary


Lighting collaboration in Kyoto


Lighting collaboration of Higashi Honganji Temple and Kyoto Tower.

During New Year holiday, many tourists from all over the world came to Kyoto and were very crowded, but the streets in front of Higashi Honganji temple were sparse at night.

posted by toons at 13:11 | diary


New Release - ”Vocal On Stave” pitch & scale check / Free of charge!


Vocal pitch & scale check app, "Vocal On Stave" was newly released today!

Support tool for improving your singing voice!

"Vocal On Stave" gives you valuable visual feedback on your vocal pitch.
You just sing into the built-in microphone on your iPhone, and it graphs the estimated vocal pitch on the stave.

Please use this app to improve the ability for your singing.

- Vocal analysis and pitch estimation for human voice.
- Display ranges: 4 octave (up to C6 from A2)
- Sensitivity level: 0 (Low) - 10 (High)
- Pitch analysis display can be scrolled back in the time axis.
- Automatic stop up to 60 seconds

vos_1_v100.png vos_2_v100.png

Please to click the following link to show this app on App StoreTM. It will be open our product page on App StoreTM.

posted by toons at 13:26 | News


Information on season's holidays closure

We will be closed from 2019/12/28 to 2020/1/5 for the season's holiday.

Regarding inquiries received during the holidays, we will respond sequentially after the holidays. Thank you for your understanding.

Have a good new year !


posted by toons at 22:57 | News


Marché de Noël 2019


Yesterday, I went to "Marché de Noël 2019".


Le Marche is held once a month at "Institut français du Japon – Kansai Kyoto". Since this month is Christmas, it is held for two days on this weekend. I look forward to this event every year.


Noel's decoration was displayed and there was a wonderful live performance of Argentine guitar by Guillermo Rizzotto.

Noel's decoration was displayed and there was a wonderful live performance of Argentine guitar by Guillermo Rizzotto.

Illuminations are handled by the art group “Mirror Bowlers”. The space of light projection using mirror balls was very fantastic.


Kyoto city was a cold day with light rain, but there were many stalls and many people gathered.


I was warmed by drinking French orange wine and mulled wine.

posted by toons at 07:43 | diary


ROHM Illumination 2019


I went to "ROHM Illumination 2019".


A semiconductor manufacturer, ROHM, holds an illumination event using its own LED around the Kyoto headquarters at the end of the year.

I went a little early because it was very crowded around Christmas.



It was still cold, so I was able to appreciate the beautiful illumination.

posted by toons at 23:57 | diary