Audiometer is listening to the test most commonly used acoustic electronic instruments. It is by can produce pure tones and noise signal generator, power amplifier, attenuator, indicating instrument (or display) and test listening to headphones and other parts.
Pure tone audiometer is through the audio oscillation occurs at different frequencies, the intensity can be adjusted (level). For testing different frequency in the auditory range, to determine whether there is no hearing impairment, the extent of the loss of hearing, the type and location of the lesion to make a preliminary judgment...By the subjects themselves to judge whether to hear the sound of the headphones, The minimum sound intensity of each frequency can be heard is the threshold. The frequency of the measured threshold standard in listening coordinates graph, and connections, namely hearing curve.
The hearing aid audiometer has features as follows:
Functions: Designed with application of electro-acoustics this pure tones audiometer can emit a variety of pure tones with different frequencies.
This pure-tone audiometer is used to determine the patients hearing thresholds in various testing frequencies.
AST Hearing (AST Hearing Science and Technology) has been devoting itself to the hearing improvement of the hearing impaired through Science and Technology. Business covers hearing aid, listening device and medical equipment in connection with Otology. AST (Germany), AST (Turkey), AST (China), AST (Singapore), AST (Hong Kong)^^AST has been providing customers with considerate services and high quality products worldwide.
AST obtained the certificates such as ISO9001, ISO13485, CE and FDA. Every link like R & D, manufacture, sales and service embodies the profession, intelligence and responsibility of AST team. In high-end market of Europe and USA, with approval of more and more audiologists, the sales grow exponentially. In Middle East, taking advantage of the reliable quality and clear sound, AST sets a good public praise and gets a stable market share. In 2003, AST entered the Chinese market and soon found favor with the hearing impaired. Sales volume of AST hearing aids ranks among the top brands in a short period of 5 years.
With the continuous market success, AST actively participates in Charity and makes a contribution to society in line with its social responsibility. AST (China) donated in Yushu disaster area and Wenchuan Earthquake disaster area, ect. The contribution of AST to society is also the honor of the entire AST team. Social responsibility has become the main Corporate Culture of AST.
