The soundproof studio is the main place for signal collection in speech experiments。Except voice signal，Can also perform breathing signals、Electronic glottal signal、Langual and palate contact signal、Ultrasound signal、Collection of speech multi-modal data such as lip shapes and video signals。The recording soundproof bet365 online betting approom of Shandong University is constructed by Beijing Keok Acoustic Technology Co., Ltd.。

Bet365 games1. Introduction

The recording soundproof room was built in 2020，Located in Room 517, Block A, Zhixin Building，Occupied area 21.2m2。

2. Building structure

The recording soundproof room is mainly composed of sound insulation-sound absorption structure、Vibration isolation structure、Soundproof doors and windows and ventilation and lighting system composition，Including control room and collection room。The control room is used to place instruments and equipment，The tester can monitor the entire recording process；The collection room is used to collect subject data。

3. Sound insulation-sound-absorbing structure

Using a "room within a room" structure。Both the interior and exterior suites are composed of metal sound insulation Bet365 gamesand sound absorption modules，The outer surface is galvanized steel plate，The inner surface is perforated galvanized steel plate，Internally filled with sound insulation damping and polyurethane fiber sound-absorbing materials。

4. Vibration isolation structure

Soundproof suite built on rubber floating floor，The floating floor is laid on rubber composite isolators connected by ground beams，So that the soundproof suite does not have any rigid connection to the surrounding structure，Cut off the solid transmission path of noise。

5. Soundproof doors and windows

Soundproof door: There is a steel soundproof door in each suite，The sound insulation of the inner door is 43 dB，Exterior door sound insulation is 40 dB。

Soundproof window: The control room and the collection bet365 games best slotsroom are connected by a soundproof window made of four layers of tempered glass，Pre-embedded PVC pipes are used to measure cables passing through the wall，Both ends of the pipe are sealed with special sound insulation end caps。

6. Ventilation and lighting

Ventilation: The ventilation duct is one in and one out，The air inlet and outlet are located diagonally at the top of the room，Install one set of mufflers each。Install another fan for air circulation between the collection room and the control room。

Lighting: using cold light source energy-saving lamps，The lamp tubes are evenly arranged on the top of the collection room，The switch is located in the control room。

7. Evaluation indicators

Tested by third-party agencies，The background noise of the soundproof bet365 online betting approom of Shandong University is less than or equal to 6.4 dB (ventilation system off)，Reverberation time is 0.14 seconds (100~10kHz)，Both technical indicators are better than existing international standards。