Happy new year! This is Mr.I of Shizuka Co., Ltd..

Today’s article is about flutter echo processing in audio room and home theater.
※original article in Japanese (日本語の記事)

Our sound absorbing material “SHIZUKA Stillness Panel (SSP)” is a panel suitable for improving the sound environment of the room.

Sound adjustment is an important factor when creating sound space such as audio room and home theater. There are many people who are introducing audio and video equipment because they are becoming more familiar with lower cost and higher performance. However, even if the equipment is high-performance it is ineffective when the environment is not maintained. For example, even if a nice movie is clearly reflected in the 4K TV, the impression will be bad if the TV speaker begin howling. If you can focus on creating better sound space as much as you can, the high quality equipment is made more useful and the balance will be wonderful.

By attaching sound absorbing material to the room, flutter echo (sound coming and going) can be reduced. However, it is not necessary to install an inappropriate sound absorbing material, you need a material that matches the characteristics of the sound source. For example, when a high sound occurs such as classic, you need a sound absorbing material suitable for it, and when you want to adjust low sounds, you need another material suitable for it.

Now talking about our product SSP, it has seen the sound absorption effect from 125 Hz to 4000 Hz, it is suitable for creating a certain level of music environment. Regarding the required number of panels, if the sound is echoing in the room of about 8 square meters, you can process flutter echo by installing two SSP (1000 mm x 1000 mm)  on the back of the audio and two on the back of the listening point. There are also 500 mm × 500 mm sizes when listening on desktop, so you can make a difference by using the same number of sheets.