Ads
related to: nmls sample test questions free audio
Search results
Results from the WOW.Com Content Network
A codec listening test is a scientific study designed to compare two or more lossy audio codecs, usually with respect to perceived fidelity or compression efficiency. Most tests take the form of a double-blind comparison. Commonly used methods are known as "ABX" or "ABC/HR" or "MUSHRA". There are various software packages available for ...
MUSHRA stands for Multiple Stimuli with Hidden Reference and Anchor and is a methodology for conducting a codec listening test to evaluate the perceived quality of the output from lossy audio compression algorithms. It is defined by ITU-R recommendation BS.1534-3. [1] The MUSHRA methodology is recommended for assessing "intermediate audio quality".
PESQ is a full-reference algorithm and analyzes the speech signal sample-by-sample after a temporal alignment of corresponding excerpts of reference and test signal. PESQ can be applied to provide an end-to-end (E2E) quality assessment for a network, or characterize individual network components.
The Harvard sentences, or Harvard lines, [1] is a collection of 720 sample phrases, divided into lists of 10, used for standardized testing of Voice over IP, cellular, and other telephone systems. They are phonetically balanced sentences that use specific phonemes at the same frequency they appear in English.
Hydrogenaudio is an online community of audio enthusiasts, including some software developers. [1] It is known for its blind listening tests [2] [3] and scientific mindset. [4] [5] It has a website with forums featuring discussions about all kinds of audio reproduction issues.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more
NMLS may refer to: Nationwide Multi-State Licensing System and Registry , a federal record system for licensing and registration of financial services in the United States. Norman Manley Law School , a law school in Jamaica.
The orientation of the free-field microphones in a DFAN test arrangement is not critical. However, reflections from the test article can be minimized with the microphone oriented toward the sound source with a 0 degree incidence. [3] Most modern day, quality measurement, free-field microphones are factory adjusted to compensate for incident angle.
Ads
related to: nmls sample test questions free audio