SoundProof Studio is the main place for signal collection in voice experiments。Except for voice signals，You can also perform breathing signals、Electronic Sound Signal、Ligue and palate contact signal、Ultrasound signal、Lip shape and video signal and other voice multi -modal data collection。Shandong University recording and sound insulation room bet365 games best slotsis built by Beijing Korque Scholars Technology Co., Ltd.。

I. Introduction

The audio -visual room was built in 2020，Room 517, Block A in Zhixinlou，Occuping area 21.2m2。

2. Building structure

Recording and sound insulation room is mainly from sound insulation-sound-absorbing structure、Vibration structure、sound insulation doors and windows and ventilation lighting system，Including the control room and the collection room。The control room is used to place instruments and equipment，The main test can monitor the entire recording process in them; the collection room is used to collect the test data。

3, sound insulation-sound-absorbing structure

Use the "House in the House" structure。Internal and external suite consists of metal sound insulation-sound-absorbing module，The outer surface bet365 games best slotsis galvanized steel plate，The inner surface is perforation galvanized steel plate，Internal filling sound resistance and polyurethane fiber sound absorption material。

Four, vibration isolation structure

Once -inspiring suite is built on a rubber floating floor，Floating floor plates on the rubber composite vibrator connected from the ground beam，No rigid connection with the sound insulation suite and the surrounding structure，Solid communication path to cut off noise。

Five, sound insulation doors and windows

Sound door: There is a steel pitch door in the inner and outer suite，Inner door sound volume is 43 db，outer door sound insulation is 40 db。

sound insulation window: Connecting the sound insulation window composed of four -layer tempered glass between the control room and the collection bet365 games best slotsroom，Wall surface is used to measure the wall through embedded PVC pipes，Both ends of the pipeline are covered with a dedicated sound insulation end。

6, ventilation and lighting

Ventilation: The ventilation pipeline is a one -time，Entry and exit the air outlet is set on the top of the room，Each installation of a set of muffler。An additional aircraft is installed for air circulation circulation between the collection room and the control room。

Lighting: Energy -saving lamps with cold light source，The lamp tube is evenly arranged at the top of the collection room，The switch is located in the control room。

7. Evaluation indicators

Testing through trilogy institutions，Shandong University's audio -visual room bottom noise is less than equal to 6.4 decibels bet365 games best slots(ventilation system shutdown)，The reverberation time is 0.14 seconds (100 ~ 10kHz)，Both technical indicators are better than international standards。