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2. NTi Audio - Wikipedia

   en.wikipedia.org/wiki/NTi_Audio

   NTi Audio AG is a manufacturer of test and measurement instruments for acoustics, audio and vibration applications. With headquarters in Schaan, Liechtenstein, the company specializes in end-of-line audio testing for manufacturing quality control purposes, [1] provides instruments for testing public address systems in safety-critical environments [2] and also produces handheld Audio Analyzers ...

3. Direct-field acoustic testing - Wikipedia

   en.wikipedia.org/wiki/Direct-field_acoustic_testing

   Direct-field acoustic testing, or DFAT®, is a technique used for acoustic testing of aerospace structures by subjecting them to sound waves created by an array of acoustic drivers. [1] The method uses electro-dynamic acoustic loudspeakers, arranged around the test article to provide a uniform, well-controlled, direct sound field at the surface ...

4. Riverbank Laboratories - Wikipedia

   en.wikipedia.org/wiki/Riverbank_Laboratories

   The testing service remains a highly respected source of independent acoustical materials testing. RAL specializes in STC (Sound Transmission Loss per ASTM E90), NRC (Sound Absorption per ASTM C423), IIC (Impact Sound Transmission per ASTM E492), and Sound Power (ISO 6926) testing. The current address for the company is 1512 Batavia Ave. Geneva ...

5. Meyer Sound Laboratories - Wikipedia

   en.wikipedia.org/wiki/Meyer_Sound_Laboratories

   Meyer Sound Laboratories is an American company based in Berkeley, California that manufactures self-powered loudspeakers, multichannel audio show control systems, electroacoustic architecture, and audio analysis tools for the professional sound reinforcement, fixed installation, and sound recording industries.

6. Audio equipment testing - Wikipedia

   en.wikipedia.org/wiki/Audio_equipment_testing

   Audio equipment testing is the measurement of audio quality through objective and/or subjective means. The results of such tests are published in journals, magazines ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. AOL Mail for Verizon Customers - AOL Help

   help.aol.com/products/aol-mail-verizon

   AOL Mail welcomes Verizon customers to our safe and delightful email experience!

9. Loudspeaker measurement - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker_measurement

   For a multiple sound source speaker system, the measurement should be carried out for all sound sources (woofer, bass-reflex vent, midrange speaker, tweeter...). These measurements are easy to carry out, can be done at almost any room, more punctual than in-box measurements, and predicts half-space measurements, but without directivity information.