2023/02/28

Buri Shabu-shabu

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"Buri", Yellowtail is the king of Japan's winter season seafood. I had it with shabu-shabu today.

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Natural live fish is essential for shabu-shabu cooking. This one was so fatty, and so damn tasty!

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The last one is ochazuke.
.t
posted by toons at 23:58 | diary

2023/02/27

New updated iOS app - "Sound Lissajous Meter" ver 3.0

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"Sound Lissajous Meter" has been updated to version 3.0 today!

"Sound Lissajous Meter" is an iPhone app that can display audio signals as Lissajous curves in real time.

"Lissajous" is a plane figure obtained by combining two single vibrations that oscillate at right angles to each other.

With the vertical axis as the microphone input signal and the horizontal axis as the reference sine wave, the Lissajous curve can be displayed as a two-dimensional curve.

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For example, a sine wave of the same frequency as the reference sine wave can be played back from an audio system and its frequency and phase changes can be observed in the Lissajous curve pattern. If there is a lot of noise, it can be displayed more clearly by applying a filter.

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In the case of an unknown sound source, the interrelationship of amplitude, frequency, and phase with a reference sine wave can be used to analyze the source.

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

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posted by toons at 09:00 | News

2023/02/18

New updated iOS app - "Octave-band Colored Noise" ver 2.0

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"Octave-band Colored Noise" has been updated to version 2.0 today!

"Octave-band Colored Noise" is a new sound generator iPhone app that can generate various colored noises and octave-band noises.

It can be used for various purposes such as sound masking, sound effects for tinnitus relief and sleep, reference sound source for sound equipment measurement, sound tuning, and sound insulation effect measurement for buildings.

The latest version features improved performance and revamped UI design.

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It generates six types of color noise signal, white noise, pink noise, brown noise, blue noise, purple noise, and gray noise.

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Furthermore, octave-band noise signals of various frequency bands can be generated by processing color noise signals with the 1/1 octave-band filter.

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As an application, the octave-band noise is also useful to adjust the characteristics of the audibility of earphones or headphones. By selecting the pink noise and playing the 1/1 octave band noise in the order of 125Hz, 1KHz, 8kHz of the center frequency, you can determine the intensity of each frequency band on the audibility. If you know the characteristic of frequency band, you will be able to adjust the earphone in the equalizer to your favorite sound easily.

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

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posted by toons at 20:59 | News

2023/02/09

New updated iOS app - "ClinoScope" ver 4.0 - 3D dynamic inclinometer

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"ClinoScope" has been updated to ver 4.0 today!

"ClinoScope" is a new analysis tool for measuring 3-dimensional angles of tilt, inclination of an object with respect to gravity by using iPhone's acceleration/gyro sensor.

You can easily measure the slope of a variety of locations, such as the distortion of the floor, the inclination of buildings.

The latest version has new UI design and improved stability.

Utilization examples:
- Measuring the tilt states, such as furniture, floors, pictures and buildings.
- Measuring angle on moving vehicles.
- Showing the inclination of an aircraft or ship relative to the horizon.
- Measurement of the rotational speed, such as the amusement playground equipment.
- Setting adjustment of audio equipment, for example, adjustment of the rotational speed of the analog record player.
- Use in various sports, for example, measurement of the green inclination angle of the golf.
- Checking the sense of balance by sensing the body swinging angle.
- Tuning the elevation angle of a satellite antenna.

In INCLINE mode, it works as a 3D inclinometer, utilizing the information of the accelerometer. It visually displays the angle and slope according to the spatial orientation of the iPhone device.

# FaceUp (Terminal horizontal, Flat)
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# Portrait (Vertical possession)
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# Landscape (Horizontal possession)
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In TIME mode, time variation of angle and angular velocity can be graphically displayed in real time.

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

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posted by toons at 13:40 | News

2023/02/01

New updated iOS app - "High-Frequency Noise Monitor" ver 3.0

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"High-Frequency Noise Monitor" has been updated to version 3.0 now!

"High-Frequency Noise Monitor" is a high-frequency noise analysis tool that specializes in high-frequency bands above 8 kHz.

You may be exposed to artificial high-frequency noise on a daily basis that is inaudible to the human ear. This app allows you to monitor such high frequency noises and examine their occurrence.

In general, noise may contain relatively high frequency components depending on its source, and this is classified as high frequency noise.

For example, harmonic noise is radiated from the main body of an electronic device or the power lines of a power conversion device such as a AC-DC power adapter, and depending on its power level, it may affect peripheral devices.

There are also devices that generate high-frequency noise to drive away vermin such as rats and weasels. The frequency of the sound varies depending on the type of vermin, and some devices incorporate sensors to change the volume and frequency over time. When such devices are installed in the vicinity, there are cases where they can lead to noise problems with adverse effects on human health.

High-frequency noise does not often occur at a constant volume or frequency, but often occurs in a certain cycle or randomly. It is not easy to detect such high-frequency noise.

This app records randomly fluctuating high-frequency noise from the iPhone built-in microphone and performs frequency analysis in real time.

The latest version has an updated UI design and improved application stability.

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In addition, it retains the PCM data for 20 seconds just before the measurement is stopped, and displays a spectrogram by FFT or the octave band analysis.

The spectrogram is a graph showing the analysis results of the frequency spectrum of sound with time on the vertical axis, frequency on the horizontal axis, and signal strength in colors, allowing visual observation of the occurrence of high-frequency noise.

# FFT analysis
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# Octave-band analysis
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If you are interested in this app, please click the following link to display on the product information of App StoreTM.

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posted by toons at 09:03 | News