New updated - "Synthetic Healing Sounds" ver 2.0 - Charge of free!


"Synthetic Healing Sounds" has been updated to ver 2.0 today.

"Synthetic Healing Sounds" is a ASMR healing sound app that has the right relaxing sound on your living, bedroom and working space.

In addition, Binaural beat can be produced with mixing base sound at the same time. It can control by the mixing parameters. For example, please try it out if the ambient sound is loud and you can not concentrate on the work or the study or if you can not sleep.

Find the relaxing sound like a meditation sound to deepen your healing sense even further.

Sound playback can be stopped at your desired time with a timer. It can also be used as a sleep timer.

Original base sound - White noise

Binaural beat mixing sound - Birds / Wave

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


posted by toons at 23:27 | News


Carita's coffee mill gDIA MILLh


Carita's coffee mill gDIA MILLh!

I loved the classical form and got it about 40 years ago. It is working as a main coffee mill in my home.

This product was temporarily discontinued, but recently revived as gDIA MILL Nh and continues to be sold without changing the design. The price seems to have become very expensive.

The body weight of this mill is about 3.3kg, which is a slightly large hand mill. Since the handle is turned vertically, no extra force is required and the grinding feel is outstanding.

I have never cleaned the inside so far, so I tried to disassemble and clean it.

To disassemble, it seems to be necessary to remove the handle and unscrew the six side plate screws that hold the shaft. The screw was stuck, but it managed to come off safely!



Looking inside, there was a lot of coffee residue stuck inside. Red rust on the back of the side plate. Is it a miracle that it worked well?


I wanted to wash everything with a machine oil because it is made of iron except for the wooden powder tray.
Since it had a problem in terms of food hygiene, the coffee residue was scraped off and wiped clean with kimwipe using absolute alcohol.


Next pic is a temporary assembly of the internal cutter.
The pile on the shaft pulls coffee beans into the inside and crushed it roughly, and it seems to be finely crushed with rounded molar teeth. But it looks like a hardware structure where a small amount of powder remains.


The rubbing part of the shaft, the side plate, and the outside of the body were wiped with Camellia oil. I expect that the internal cutter part will be supported by the coffee fat oily component.


For the first time in 40 years, it has been completely cleaned!

I tried to grind coffee beans at once, but the rotation is smooth and the grinding condition can be adjusted well. The taste is refreshing with no miscellaneous taste.

It was very easy to disassemble and clean, so let's do it once a month. I will continue to use this "DIA MILL" for a long time.
posted by toons at 00:17 | diary


OSAKA High-end Audio Show 2019


I went to Osaka High-end Audio Show 2019 last weekend.

After 16:00 on Friday, each listening room was full and most of them seemed to be in their 50s and 60s.

This year, the venue was only the Hearton Hotel Shinsaibashi, so it may be because people were concentrated.



The Bayz Audio's gCouranteh speaker was very interesting, with a very large and unique pipe shape.


The Burmester amplifier, which was placed in a corridor in the hallway, was created a strong presence. (Is the power amplifier's top-plate flat for listening equipment?)



As an audio sound, I was impressed that JBL EVEREST speaker, which was playing in Mark Levinson, was producing a stable good sound.
posted by toons at 16:24 | Audio


New released - "Voice Sonogram" - Wavelet vs. FFT analysis / Free of charge!


"Voice Sonogram" is sound spectrogram app that expresses color intensity by frequency analysis of temporally continuous sounds. The sound spectrogram is used for acoustic analysis and voiceprint appraisal.

This app uses some sound analysis techniques such as FFT and Wavelet transform, and graphs the analysis results. It can be easily analyzed voices and instrument sounds, or you can learn elementary sound analysis.

- Analyze the sound data recorded from the built-in microphone.
- FFT, Octave band analysis, and Wavelet analysis can be selected.
- Analysis result graph and time axis sound waveform can be compared in playback.
- Snapshot: Save the analysis result in Photos.

- Wavelet analysis


- Octave band analysis

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 11:39 | News


Thanks for the 7th anniversary of TOON establishment.

Our company celebrated the 7th anniversary of establishment on October 11 today.
We will continue to provide comfortable environmental solutions.
Thank you very much all for your support and gratefulness.

October 11, 2019
posted by toons at 15:39 | News


SONY Blu-ray Disc Recorder "BDZ-X95"


Sony's Blu-ray Disc recorder high-end machine released in 2008.

It was the popular model of the time with high-quality video circuit "CREAS", and became a hot topic even with the failure of Seagate HDD.

It malfunctioned due to HDD system error. I tried to disassemble it and repair myself, but eventually gave up.

The top plate is made of 4mm aluminum, and the HDD has a rubber-damped pedestal and a copper spacer.
By the way, I will use this aluminum top plate in place of the insulator of my CD player, and I am thinking about what the copper spacer can be used for.

Introducing each part of the dismantling.

# All boards

# System board


# Video Encoder/Decoder

# Digital tuner

# Video signal I/F


# Display

# Power supply
posted by toons at 08:11 | diary


Got FoodSaver FM2000! - its noise level?


As a new kitchen tool, I got the vacuum packer gFoodSaver FM2000h.

I've wanted this tool since purchasing the low temperature cooker gBoniqh.

There are various manufacturers of vacuum packers, and their performance and price are very different. In the past, I used a semiconductor vacuum device, so I know how it works. But the consumer products is proved to be incomparable to expensive professional products with vacuum chambers. For the time being, I decided to choose a product that seems to be reasonably durable next to performance.

I finally selected FoodSaver's gFM2000h. FoodSaver has the US No.1 share, but it seems that the cost performance is not so good because a special pack is required.


This product has a lot of accessories such as handy sealer, vacuum fresh box, special pack roll, bottle stopper, etc., so it is quite profitable.

gFM2000h is designed to perform vacuuming and sealing automatically, so it may be packed with air remaining due to malfunction of the pressure sensor.

In fact, I think that the manual method that can perform vacuuming and sealing by separate operations is more certain.

Ay first, I tried to make rice into a vacuum pack to check the packingoperation of FM2000.


The important point of FoodSaver products is to set the rough side inside the original pack roll to the lower side. On the other hand, it seems that vacuuming process tends to fail.



The rice vacuum packed in a tick has been successfully completed.

There are rumors that the vacuum packer is quite annoying and cannot be used at night, so I tried to measure the noise level during vacuuming.

I use the sound level meter app " Sound Level Analyzer PRO" that was measured at a distance of 30cm from "FM2000".

foodsaver-MF2000-sla.jpg foodsaver-MF2000-sla-tc.jpg

According to this measurement result, the maximum noise level during vacuuming with FM2000 was 68.7dBA, and the average of 10 seconds at the last vacuuming was 65.4dBA.

As the degree of vacuum increases during the vacuuming process, the noise level gradually increases. But it turned out to be much quieter than I had imagined in advance.

Looking at the results of statistical analysis, the noise level with higher occurrence is 62 dB, which can be said to be steady noise during vacuuming.


Furthermore, looking at the frequency analysis results when the noise level is maximum, it seems that the main component of the noise is around 500-1000Hz.

Since there is no peak at a specific frequency, there is no harshness in the sense of hearing. Unless midnight, FM2000 seems to be usable normally.


I would like to use it for frozen storage of food, but the special pack is quite expensive, so I need to search a cheap alternative. Well, FoodSaver products are major, so the SNS reviews will be very helpful.
posted by toons at 17:50 | Environmental noise


SANSUI AU-907 Limited


SANSUI AU-907Limited

Released in 1994, the third-generation limited products of Sansui 907 integrated amplifier.

Equipped with a HYPER -X balance circuit, it featured a clean sound in the mid-high range of Toshiba's old MOS-FET (2SK405 / 2SJ115). This is still popular as the best sounding device for audio power MOSFETs along with Hitachi 2SJ49 / 2SK134.

Last night, after a long time, I tried to play an analog record to adjust my 2way speaker, but the amplifier was out of order and no sound was produced (CD direct input was sounded).

This morning, I opened the top plate to clean the inside, and after removing dust for the first time in several years, it started to sound normal.

# Inside of amplifier

# 6mm thick aluminum bonnet with copper powder coating

# Left channel power block

# Right channel power block, preamplifier section (black box at right end)

# Power block (large power transformer with a total weight of 13kg)

It was a total weight of 34kg, so I was concerned that it would hurt my waist when placed on the floor, but there was enough reward to clean it!
posted by toons at 03:15 | Audio


MarkAudio OM-MF519 vs OM-MF5, Fostex speaker frequency characteristic comparison - extra edition

Extra edition report of my handcrafted speakers characteristic comparison.

I tried to measure the frequency characteristics of MarkAudio OM-MF519, last year's model OM-MF5, and some FOSTEX products under the same conditions as much as possible.

The amplifier volume position was the same, pink noise, and the measurement position was fixed at 1m on the axis, but the height of the unit was adjusted precisely, and there were a difference of several centimeters.

This was measured frequency characteristics with RTA app "Audio Frequency Analyzer".

OM-MF519 double bass reflex vs OM-MF5 bass reflex

# MarkAudio OM-MF519iDuct 15cm + 2.5cmj


# MarkAudio OM-MF5 (Tw is removed.)


As expected, the rich bass of OM-MF519 double bass reflex!
It seemed that the level around 30-50Hz is higher than OM-MF5 bass reflex.
For hearing, the left handed sound of the piano was resonated deeply. The loudness of the contrabass was also rich. And the mid-high range resolution is quite high, and the sound image localization was good due to the narrow baffle.

On the other hand, OM-MF5 bass reflex feeled like being pushed by energy. Since 60-100Hz was the same level as the mid range, the force of the base went up here. Full orchestra was a little difficult, but it was more suitable for Pops and Jazz.

The OM-MF519 double bass reflex was a 12mm front MDF, so I intended to reinforce it, but I found that the top plate was vibrating a little.

Since OM-MF5 bass reflex had 18mm side plate and bottom plate, it may be affected by the difference in rigidity.

Compared to the playback sound of two speakers, I prefered the normal bass reflection.

And measured other speakers under the same conditions!

Fostex FE83n


Fostex FE83n mini bass reflex, installed in the enclosure in the Ontomo MOOK appendix.
The sound pressure level was the same, and the low frequency response was attenuated gently from 100Hz, making it easy to hear.

Fostex M800


2016's Fostex M800.
This box was a simple square shape, but the inside is actually elaborate. It had a hard reinforcement and air venting duct port, but was almost a sealed design.

The low frequency response feeled better than FE83, but was less conservative than OM-MF5. Since the sound had a peak in the high range of the unit, there were a feeling that it will be a little audible, such as a scratching sound. The low range was neutral and sound power can be put in as it fully.

Each units and boxes had very different characteristics and sounds. How far I can get to my favorite sound is a long way off.
posted by toons at 02:12 | Audio


MarkAudio "OM-MF519" Speaker assembly Part 7 - frequency characteristics


After painting, I played a lot of music with this speaker for sound aging.

My personal impression is that the bass sound is very loud despite the 8cm full range. This is probably due to the bass enhancement effect of the double bass reflex.

# frequency characteristics (distance 1m, Pink noise, measurement by RTA app "Audio Frequency Analyzer"j

However, looking at the frequency characteristics measurement above, it seems that the elasticity and tightness are retreating compared to a general bass reflex type, probably because 125-200Hz is slightly depressed. In a sense, 100Hz or less is too high.

Next, I adjusted the length of the second duct and examined how the frequency characteristics changed.

# Original duct (15cm)


I prepared a paper pipe with a slightly smaller diameter and measured it in units of 2cm.

The level of 100Hz decreased in the duct +2cm. It may be the effect that the duct area is slightly reduced.

# Duct +2cm


After that, the length of the duct was increased by 2cm, but no significant change was observed. It is also possible to pick up ambient noise.

# Duct +4cm


# Duct +6cm


# Duct +8cm


# Duct +10cm


# Duct +12cm


As a trial, I changed the length of the upper and lower ducts extremely. But, it did not be much different from closing the duct.

# Duct +2cm, +10cm


These results was not clear, so I have to try several times with different dates. I try listening with a duct length of + 4cm for a while.
posted by toons at 03:20 | Audio