2018/04/28

Accuphase E-302B

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Accuphase's Integrated Stereo Amplifier E-302B.

Accuphase products are generally champagne gold color, but this is a very rare black model. It was released in glossy black finish like a mutation in 1984. It is the fifth generation product as Accuphase's Integrated Stereo Amplifier, and was sold together with E-302 of champagne gold color.

My amplifier has been 33 years old, but there is never a failure like a breakdown. I am still using in my sub audio system as an active machine.

Accuphase's integrated amplifier before this model was sticking to the control amplifier function, but this model seems to be tuned in the direction to increase the freshness of the sound by making the pre part as simple as possible. I think that the sound is not too tight such as so-called Accuphase tone.

Although this amplifier heats up considerably, it seems that troubles are hard to occur owing in order to the simple circuit configuration. I'd like to continue using it for a long time.

The spec of E-302B is as follows. The product catalog is still existed on Accuphase's website now.

Accuphase E-302 : http://www.accuphase.com/cat/e-302en.pdf

posted by toons at 03:45 | Sound

2018/04/19

New updated "Colored Noise Generator" ver 2.0

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"Colored Noise Generator" was updated to ver 2.0 today.

"Colored Noise Generator" is a new noise generator that can be used to as the sound source for a variety of acoustic measurement and auditory effects.

This app can generate standard noise signals such as white noise, pink noise, brown noise, blue noise, purple noise and gray noise.

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In addition, it can generate a specific octave band noise signal by using the band-pass filtering of 1/1 octave band with ideal steep attenuation characteristics.

Octave band noise can be used for various purposes as a reference sound source for environmental sound measurement, sound tuning, tinnitus relief and sound masking.

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Please to click the following link to show "Colored Noise Generator" from App StoreTM. It will be open our product page on App StoreTM.

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posted by toons at 07:25 | News

2018/04/18

New updated "Low Frequency Detector" ver 1.3.

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"Low Frequency Detector" was updated to ver 1.3.

"Low Frequency Detector" is a new acoustic measurement tool for detecting low frequency sound/noise that is hard to hear in the normal situation. This app can display the frequency component of the low frequency sound by examining by 1/3 octave band analysis and FFT analysis.

Low frequency sound is lurking everywhere in everyday life.

Unlike general noise, low frequency sounds are often not noticed easily and there is a property that it is hard to predict the physical influence.

If it is general noise, you may get used to it. However, in many cases the low frequency sound deteriorates physical influences over time.

If there is insomnia or poor physical condition, low frequency sound may be the cause. Please check the presence and source of low frequency sound by using this app to solve your problems.

- Example of low frequency noise detection by 1/3 octave band analysis,

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- Example of low frequency noise detection by FFT analysis,

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Please to click the following link to show "Low Frequency Detector" from App StoreTM. It will be open our product page on App StoreTM.

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posted by toons at 02:05 | News

2018/04/15

Rokakudo Light up - Kyoto

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I went to the light up of ”Rokkakudo” temple. It was only held for three days during this weekend.

The flowering of cherry blossoms is very early this spring in Kyoto, the cherry blossoms of "Rokakudo" have already scattered and become green leaves.

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”Rokakudo” is the birthplace of Japanese traditional flower arrangement school, "Ikebana Ikenobo". The flower arrangement exhibited in this temple was beautiful and a solemn.

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The hexagonal stone is in this temple. It called the "Heso ishi", it said to be the centre point of Kyoto City from 1200 years ago.
posted by toons at 23:56 | diary

2018/04/11

New updated "ATG - Audio Tone Generator" ver 4.0

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"ATG - Audio Tone Generator" was updated to ver 4.0 today.

"ATG - Audio Tone Generator" is a high quality Audio Signal Generator app for iPhone, which creates the Audio Reference signals as Sinewave, Frequency Sweep, White Noise and Pink Noise.

It creates the reference Audio test signals as Sinewave, Frequency Sweep, White Noise and Pink Noise, and has a high precision of DVD quality and a frequency accuracy of 0.1Hz. Frequency Sweep time can be altered as desired by the user.

By the ver 4.0, it has been added the octave band generator function as a new feature. Octave band noise is generated a frequency limited band signal by using the band-pass filtering of 1/1 octave band or 1/3 octave band. It can be used in order to measure and evaluate the sound level of a certain frequency band on the basis of the octave.

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This app can be very useful for a variety of applications including:
- Testing for Loudspeakers and Headphones
- Burn-in for Audio equipment and Loudspeakers
- Testing and tuning for Audio amplifiers, Equalizers and many other Audio equipment.
- Acoustics testing
- Frequency response measurement for Audio systems using White noise and Pink noise
- Sound Masking
- Relaxation and Meditation
- Hearing Test
- Mosquito sound creation for teenagers

If you are interested in "ATG - Audio Tone Generator" app, please click the following link to display on the product information of App StoreTM.

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posted by toons at 17:03 | News