Nasal flow is an effective tool for collecting and analyzing pronunciation air dynamics data，It is also a common tool for clinical diagnosis and evaluation of patient pharyngeal closure problems。The nasal current of the bet365 live casino bettingVoice Laboratory of Shandong University is produced by GLOTTAL Company，It has non -invasiveness、Easy operation and portable advantages。

1. Hardware system

Popularity nasal mask、Children's mouth nose mask、Mask handle、The handle of the nose and nose is divided into the handle (including narrow、Middle、Demolitionable partitions of the three models wide)、microphone、USB wiring

2. Instrument connection

Mouth and nose current measurement: Install the mouth and nose mask on the mask handle，Connect to the computer through the USB wiring。

Nasalization measurement: Connect the microphone Bet365 gameswith a microphone and nose.。

Note: After the connection is completed,，You need to record the sound of the computer to dual -channel。

3, signal collection

Oral and nose flow signals are collected through the nasal flow system，Nasalization signal is collected through the nasalization system，Recording uses dual channels，The first channel is the nasal signal，The second channel is the oral signal。Correction must be made through "Zero" before the signal recording，After use, you need to use alcohol cotton slices to clean and disinfect the mask。

Bet365 Casino login(Insert Figure 3-1, Figure 3-2)

4. Data analysis

Real -time extraction and analysis of air dynamic parameters with the software with the nasal flow meter，Including nasalization、mouth flow、Nose flow, etc.。

5. Application field

Linguistics Research: Nasal flow and nasal pressure data can make up for the lack of acoustic analysis，Display important pronunciation facts of some voice phenomena，such as Qinghua Nose and Nasal Monterization;

speech pathological research: Clinical assessment for comprehensive pharyngeal closure、Correction and rehabilitation training;

Bet365 gamesJudicial Language Study: Individual differences in nasal sound parameters can be used for voice identification of the same sex。