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Double-blind audio quality testing method
An ABX test is a method of comparing two choices of sensory stimuli to identify detectable differences between them. A subject is presented with two known
ABX_test
Topics referred to by the same term
ABX may refer to: ABX test, a double-blind testing method commonly used in codec listening tests and in ascertaining high fidelity Abaknon language, an
ABX
Scientific study designed to compare two or more lossy audio codecs
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
Codec_listening_test
Method of software testing
writes many test cases to check something that could have been tested by only one test case or leaves some parts of the program untested. ABX test Acceptance
Black-box_testing
US cargo airline
ABX Air, Inc. is an American cargo airline headquartered at Wilmington Air Park near Wilmington, Ohio. ABX Air operates scheduled, ad hoc charter and ACMI
ABX_Air
1996 aviation accident in Virginia
(FEF) of an ABX Air (operating under Airborne Express) Douglas DC-8 that had undergone a major modification. On December 22, 1996, during the test flight,
Airborne_Express_Flight_827
High-quality reproduction of sound
began to use blind tests, in which listeners cannot see the components being tested. A commonly used variant of this test is the ABX test. A subject is presented
High_fidelity
Amount a stimulus must be changed to be detected
the performance of the user in accomplishing a task. Absolute threshold ABX test Color difference Limen Minimal clinically important difference Mutatis
Just-noticeable_difference
Scientific study of sound perception
portal A-weighting, a commonly used perceptual loudness transfer function ABX test Audiology Auditory scene analysis, including 3D-sound perception, localization
Psychoacoustics
Concept in inferential statistics
other way. Mathematics portal A/B testing, ABX test Estimation statistics Fisher's method for combining independent tests of significance Look-elsewhere
Statistical_significance
Type of data compression
compression is transparent (imperceptible), which can be verified via an ABX test. Data files using lossy compression are smaller in size and thus cost less
Lossy_compression
High-fidelity sound reproduction enthusiast
based on objective criteria that can be verified using techniques like ABX testing, perceived sound quality is necessarily subjective, often with subtle
Audiophile
Technique employed in sensory analysis
Triangle (XXY) – three unknowns, test is which is odd one out (Y = 1, Y = 2, or Y = 3). ABX ABX – two knowns, one unknown, test is which of the knowns the unknown
Discrimination_testing
Perceptually indistinguishable data compression
hypothesis testing, since in hypothesis testing, a null hypothesis cannot be proven; it can either be rejected or fail to be rejected. Even when an ABX test or
Transparency (data compression)
Transparency_(data_compression)
Means of quantifying system performance
prefer sighted tests than blind tests. ABX test Alignment level Amplitude distortion Audio noise measurement Audio equipment testing Audiophile Clipping
Audio_system_measurements
Controversial claim that ultrasound produces measurable reactions in humans
Society published their study in which about half of the 554 double-blind ABX test listening trials made by 60 respondents showed the correct identification
Hypersonic_effect
American company specializing in audio equipment
against the Ethernet standard IEEE 802.3. In fact, an independent blinded ABX test of Ethernet cables at The Amazing Meeting in 2015 found that the cables'
AudioQuest
reasoning Absolute deviation Absolute risk reduction Absorbing Markov chain ABX test Accelerated failure time model Acceptable quality limit Acceptance sampling
List_of_statistics_articles
American periodical published 1947–2000
David Clark company and expert in unbiased double-blind test procedures and originator of the ABX test, wrote articles for Audio. In 1972, Robert W. "Bob"
Audio_(magazine)
Audio performance differences between technologies
thresholds for random jitter in music signals. Their method involved ABX listening tests. When discussing their results, the authors commented that: So far
Comparison of analog and digital recording
Comparison_of_analog_and_digital_recording
Investigational antibiotic
Zosurabalpin (RG6006, Abx-MCP, Ro7223280) is an experimental antibiotic developed in a collaboration between the pharmaceutical company Roche and scientists
Zosurabalpin
Japanese manufacturing company
French companies: the specialist blood cell counter maker ABX SA (currently called Horiba ABX SAS) in 1996, and optical equipment maker Instruments SA
Horiba
Electronics component
claims through measurement of the sound systems and through double-blind ABX tests of listeners. There is however agreement that the overall resistance of
Speaker_wire
American engineer
in the mid-1970s, Shanefield was an early proponent of double-blind ABX testing of high-end audio electronics; in 1980 he reported in High Fidelity magazine
Daniel_J._Shanefield
German railway network covering the Rhine-Ruhr region
cars were handed over to DB, followed by split first/second class cars type ABx 791.0 in early 1979. The prototypes were successful, so from 1981 to 1994
Rhine-Ruhr_S-Bahn
Pharmaceutical drug
01. PMID 16796788. "FDA updates Vectibix and Erbitux labels with KRAS testing info". 20 July 2009. Archived from the original on 3 March 2016. Retrieved
Panitumumab
Airline of the United States
The airline mainly serves the Nevada Test and Training Range (NTTR) (most notably Area 51 and the Tonopah Test Range) from a private terminal at Las
Janet_(airline)
Standardized psychometric measure of psychopathology and personality
Multiphasic Personality Inventory (MMPI) is a standardized psychometric test of adult personality and psychopathology. A version for adolescents also
Minnesota Multiphasic Personality Inventory
Minnesota_Multiphasic_Personality_Inventory
Isotope of iodine
significant contributor to the health hazards from open-air atomic bomb testing in the 1950s, and from the Chernobyl disaster, as well as being a large
Iodine-131
Species of bacterium
October 2007). "Serratia species". Point-of-Care Information Technology ABX Guide. Johns Hopkins University. Retrieved 13 December 2008.{{cite web}}:
Serratia_marcescens
Species of virus
PMC 6601091. PMID 31221784. "Respiratory syncytial virus". Johns Hopkins ABX Guide. Archived from the original on 1 November 2020. Retrieved 29 October
Respiratory_syncytial_virus
2011 aviation accident in Egypt
July 2011. Retrieved January 2, 2012. "Ground Fire Aboard Cargo Airplane, ABX Air Flight 1611, Boeing 767-200, N799AX, San Francisco, California, June
EgyptAir_Flight_667
Chemical compound
Triiodothyronine Thyroid extract Thyromimetics (selective agonists) Elunetirom (ABX-002, MA-JD21) Eprotirome (KB-2115) KB-141 KB-2611 KB-130015 MB-07344 MB-07811
Thiocyanate
Turkish charter airline
Caribbean Airways, based in Barbados. The company sold its DC-8 in 1994 to ABX Air and leased successively two Boeing 727-200 from Yemenia and one McDonnell
Birgenair
Airport in Wilmington, Ohio
DHL kept Airborne's ground operations and spun off its air operations as ABX Air. The facility was a major sorting center for package delivery service
Wilmington_Air_Park
Failed high-resolution audio download service
that the participants did not prefer Pono. A subsequent (subjective, non-ABX) review in the Stereophile magazine, deemed the Pono Player's performance
Pono_(digital_music_service)
Chemical compound
endogenous T3 can be estimated by the triiodothyronine resin uptake test. The test is performed by taking a blood sample, to which an excess of radioactive
Triiodothyronine
Chemical element with atomic number 53 (I)
and this reaction is often used to test for either starch or iodine and as an indicator in iodometry. The iodine test for starch is still used to detect
Iodine
Main airport serving St. Louis, Missouri, United States
Archived from the original on April 23, 2024. Retrieved April 24, 2024. "ABX Air 3943 ✈ FlightAware". Flightaware.com. Archived from the original on June
St. Louis Lambert International Airport
St._Louis_Lambert_International_Airport
National airline of South Korea
Business-Class Seat Design - Global Traveler's Tested Reader Survey Awards 2023 Best Airline Cuisine - Global Traveler's Tested Reader Survey Awards 2023 Best Frequent-Flyer
Korean_Air
Airline of Canada
limited interline agreement with Taiwan-based China Airlines, in part to test the company's capability to partner with other carriers. In 2006, WestJet
WestJet
Mosquito-borne disease
on 8 March 2024. Retrieved 8 March 2024. "Dengue vaccine | Johns Hopkins ABX Guide". www.hopkinsguides.com. Retrieved 4 December 2025. "Message by the
Dengue_fever
American ultra-low-cost airline
Retrieved May 10, 2026. Snyder, Brett (November 20, 2023). "Allegiant Tests the Waters At Orlando International On Its Busiest Routes". Cranky Flier
Allegiant_Air
2017 Oct 11, 2017 Oct 11, 2017 Two Parsecs From Earth Action, metroidvania ABX Games Studios Ratalaika Games Unreleased Oct 14, 2020 Oct 14, 2020 Two Point
List of PlayStation 4 games (M–Z)
List_of_PlayStation_4_games_(M–Z)
Airline of Japan
the failure of a safety test in Japan of a new seat design axle, made by seat manufacturer Koito Industries Ltd. This safety test failure also affected
All_Nippon_Airways
Device used to measure the amount of light
ISBN 0-240-80299-3. Eastman Kodak Company. Instructions for Kodak Neutral Test Card, 453-1-78-ABX. Rochester: Eastman Kodak Company. Eastman Kodak Company. 1992
Light_meter
(Mathematical) decomposition into a product
a b x + a c x + b c x − a b c {\displaystyle x^{3}-ax^{2}-bx^{2}-cx^{2}+abx+acx+bcx-abc} having 16 multiplications, 4 subtractions and 3 additions, may
Factorization
Psychoactive drug from the cannabis plant
the recency and extent of usage. The Duquenois–Levine test is commonly used as a screening test in the field, but it cannot definitively confirm the presence
Cannabis_(drug)
Airline of the United States (1926–2010)
In 1931, Northwest sponsored Charles and Anne Lindbergh on a pioneering test flight to Japan via Alaska, scouting what would become known as the Northwest
Northwest_Airlines
Safety Network. Retrieved on 15 December 2011. Accident description for ET-ABX at the Aviation Safety Network. Retrieved on 15 December 2011. Accident description
Ethiopian Airlines accidents and incidents
Ethiopian_Airlines_accidents_and_incidents
Uzbekistan airline
and arrived in Tashkent on March 21, 2023, after six stopovers. Following test flights, commercial operations began on April 25, 2023. On November 23, 2022
Silk_Avia
Cryptographic attack
string comparison which stops testing as soon as a character doesn't match. For example, when comparing "ABCDE" with "ABxDE" it will return after 3 loop
Timing_attack
National airline of the People's Republic of China
2013, in time for the company's 25th anniversary, Air China successfully tested Wireless LAN in flight. It was the first global satellite internet flight
Air_China
Plant species
TPT-0201 UCM710 URB-597 Activators: PDP-EA MAGL Inhibitors: Elcubragistat (ABX-1431; Lu-AG06466) IDFP Irafamdastat (BMS-986368; CC-97489) JJKK 048 JW 642
Cannabis_sativa
Airline of the United States
{{cite web}}: CS1 maint: bot: original URL status unknown (link) "Food Sales Test." Delta Air Lines. October 2, 2003. Retrieved on September 16, 2009. "Food
Delta_Air_Lines
Antiretroviral medication
2012 – via From Times Wire Services. "Zidovudine (AZT) | Johns Hopkins ABX Guide". Greenhouse L (January 17, 1996). "Supreme Court Roundup;Justices
Zidovudine
Species of plant
TPT-0201 UCM710 URB-597 Activators: PDP-EA MAGL Inhibitors: Elcubragistat (ABX-1431; Lu-AG06466) IDFP Irafamdastat (BMS-986368; CC-97489) JJKK 048 JW 642
Cannabis_indica
Genus of bacteria
Bartlett JG (October 5, 2007). "Nocardia". Point-of-Care Information Technology ABX Guide. Johns Hopkins University. Archived from the original on December 1
Nocardia
Charter and cargo airline of the United States (1975–2013)
Seattle Times. Retrieved December 15, 2021. "Rumbling of 747 at Mach 1 as test jet nears speed of sound". Chicago Tribune. December 20, 1992. "In-Flight
Evergreen International Airlines
Evergreen_International_Airlines
Tam Cargo Brazil TTN Absolute Flight Services TITANIUM South Africa GB ABX ABX Air ABEX United States August 15, 2003 Air operations of former Airborne
List_of_airline_codes
Airline of the United Arab Emirates
repair during ground testing at Airbus' facilities at Toulouse Blagnac International Airport in France. During a pre-delivery engine test, multiple safety
Etihad_Airways
Psychoactive component of cannabis
combination of immunoassay and chromatographic techniques as part of a drug use testing program or in a forensic investigation. There is ongoing research to create
Tetrahydrocannabinol
National airline of Canada
Canada enacted no-smoking flights between Canada and New York City as a test. After a survey reported that 96% of passengers supported the smoking ban
Air_Canada
German airline group
die Trendwende" [Lufthansa brings back another Airbus A380 – the shares test the turnaround]. Der Aktionär (in German). Retrieved 5 January 2025. lh-taufnamen
Lufthansa
Airline of the United States
year, the airline was run experimentally, operating different routes to test demand. In its first year, Southern operated as a DOT Part 380 scheduled
Southern_Airways_Express
List of pharmaceutical drugs under clinical development for treatment of depression
non-selective serotonin receptor agonist and psychedelic hallucinogen Elunetirom (ABX-002; MA-JD21; LL-340001 prodrug) – thyroid hormone receptor β (TRβ) agonist
List of investigational antidepressants
List_of_investigational_antidepressants
Synthetic cannabinoid, designer drug
brominated synthetic cannabinoid receptor agonists and their analogs". Drug Testing and Analysis. 16 (6): 616–628. doi:10.1002/dta.3592.
ADB-5'Br-PINACA
Chemical compound
brominated synthetic cannabinoid receptor agonists and their analogs". Drug Testing and Analysis. 16 (6): 616–628. doi:10.1002/dta.3592.
ADB-5'F-BUTINACA
Cargo airline of the United States
Express partnered with Iveco and started a new test program of hybrid electric/diesel vans. The test program consisted of ten hybrid vans deployed in
FedEx_Express
Low-cost airline of Brazil
Legacy jet landed safely at Cachimbo Airport, part of the Brigadeiro Velloso Test Range of the Brazilian Air Force, with damage to the tail and left winglet
Gol_Linhas_Aéreas
State-owned airline of Ethiopia
that day. On 30 November 1963, the airline lost another DC-3 (ET-AAT) in a test flight at Addis Ababa; the crew of three suffered minor injuries. Rome was
Ethiopian_Airlines
Portuguese charter airline
flights were carried out and the total weight of plastic saved over the entire test was 1500 kg. On these flights, plastic cutlery was replaced with bamboo and
Hi_Fly_(airline)
Medication for pain and fever
indicating possible gastrointestinal bleeding, and abnormal liver function tests, and higher doses may lead to toxicity, including liver failure. Paracetamol
Paracetamol
National airline of France
[non-primary source needed] On 29 May 2013, KLM and Air France launched a pilot to test inflight Wi-Fi. Both airlines have equipped one Boeing 777-300ER of each
Air_France
Nigerian airline
November 2021" (PDF). AIB Nigeria. Retrieved 26 April 2022. "Air Peace pilots tested positive for alcohol, cannabis after the Port Harcourt runway incident"
Air_Peace
Indian airline
Volotea Vueling Wamos Air White Airways Widerøe World2Fly The Americas Region ABX Air Aerolíneas Argentinas Aeromar Aeroméxico Air Canada Air Transat Alaska
Kingfisher_Airlines
Airport in North Carolina
42-108992 at the Aviation Safety Network "Uncontrolled Flight into Terrain, ABX Air (Airborne Express) Douglas DC-8-63, N827AX, Narrows, Virginia, December
Piedmont Triad International Airport
Piedmont_Triad_International_Airport
International airport serving Bogotá, Colombia
following which the propeller on the engine was feathered. The aircraft was on a test flight. All four on board were killed. On 8 February 1986, Douglas DC-3 HK-3031
El Dorado International Airport
El_Dorado_International_Airport
Flag carrier of Romania
necessary for maintenance, dedicated spaces for chemicals, special tools and testing equipment, and quarantine spaces. It also provides conveyance services
TAROM
United States airline (1927–1991)
missile-tracking range in the South Atlantic and operating a nuclear-engine testing laboratory in Nevada. In addition, Pan Am participated in several notable
Pan_Am
Airline of the United States (1930–2001)
A Lockheed 12A, used by TWA as an experimental/test aircraft
Trans_World_Airlines
vinblastine, dacarbazine (first-line treatment for Hodgkin's lymphoma) ABX antibiotics a.c. AC before a meal (from Latin ante cibum) AC abdominal circumference
List of medical abbreviations: A
List_of_medical_abbreviations:_A
National airline of Indonesia
Board". Garuda Indonesia. Retrieved 22 May 2017.[permanent dead link] "Flight test: Garuda's onboard immigration service – Flights | hotels | frequent flyer
Garuda_Indonesia
Genus of flowering plants
Cannabis All pages with titles containing Cannabis Cannabis drug testing – Drug test methodologies for the use of cannabis Cannabis edible – Food item
Cannabis
Airline of the United Arab Emirates
percent SAF in one of the airplane's four engines. Following successful tests, Emirates operated its first commercial flight using SAF blend on 24 October
Emirates_(airline)
Cannabis sativa L. (marijuana; hemp) used medicinally
cannabis as medicine has a long history, but has not been as rigorously tested as other medicinal plants due to legal and governmental restrictions, resulting
Medical_cannabis
Medication used for hyperthyroidism
symptoms of infection, such as sore throat or fever, so that a full blood count test may be arranged. If this confirms a low neutrophil count, discontinuation
Carbimazole
Military air base in Riverside County, California
cargo center and in 2004 it was announced that air freight corporation DHL/ ABX Air was considering the base for its new Southern California hub. Competition
March_Air_Reserve_Base
Mammalian protein found in Homo sapiens
phenotype, showing reduced pain sensation in the hot plate test, the formalin test, and the tail flick test. Finally, because of their impaired ability to degrade
Fatty-acid_amide_hydrolase_1
National airline of Latvia, Estonia and Lithuania
Volotea Vueling Wamos Air White Airways Widerøe World2Fly The Americas Region ABX Air Aerolíneas Argentinas Aeromar Aeroméxico Air Canada Air Transat Alaska
AirBaltic
Cargo airline based in the United States
Aircraft Fleet" (PDF). UPS. November 5, 2025. "UPS Announces Successful Test Flight of A300 with Flight Deck Upgrades". AirlineGeeks.com. September 23
UPS_Airlines
International Airport serving San Francisco, California, United States
clearing departing aircraft on the intersecting runway. On June 28, 2008, an ABX Air Boeing 767 preparing to depart with cargo caught fire and was seriously
San Francisco International Airport
San_Francisco_International_Airport
Type of crystal structure
Becker, Markus; Klüner, Thorsten; Wark, Michael (2017). "Formation of hybrid ABX 3 perovskite compounds for solar cell application: first-principles calculations
Perovskite_(structure)
Medication and supplement
of endogenous urinary steroids after pregnenolone administration". Drug Testing and Analysis. 3 (5): 283–290. doi:10.1002/dta.281. PMID 21538944. Sripada
Pregnenolone_(medication)
Airline of the United States (1926–1991)
National Airport, collided in mid-air with a Lockheed P-38 Lightning being test-flown for acceptance by the Government of Bolivia, killing all 55 aboard
Eastern_Air_Lines
Designer drugs
marijuana drug tests including the immunoassay test (EMIT), GC-MS screening, and multi-target screening by LC-GC/MS because those tests only detect the
Synthetic_cannabinoids
Low-cost airline of the United States
for Testing". Yahoo! Life. July 15, 2022. Retrieved July 18, 2022. "A JetBlue-Backed Hydrogen-Fuel Powered Airplane Is Coming to the US for Testing". Robb
JetBlue
Beta blocker drug
doi:10.2190/QPWL-14H7-HPGG-A29D. PMID 9844835. S2CID 25222454. "Doctors test a drug to ease traumatic memories - Mental Health - NBC News". NBC News.
Propranolol
National airline of Poland
Polskie Linie Lotnicze 'LOT'. That same year, a well-publicised transatlantic test flight from Los Angeles to Warsaw via Buenos Aires, Natal and Dakar, aimed
LOT_Polish_Airlines
Airline brand of the United States
administration let the merger fly?". Associated Press. "Alaska-Hawaiian merger tests Biden administration's resolve to preserve competition". Alaska Public Media
Hawaiian_Airlines
ABX TEST
ABX TEST
Boy/Male
Hebrew American
Father of a multitude. In Genesis the Old Testament patriarch Abram's name was changed to Abraham...
Male
English
Short form of Hebrew Abraham, ABE means "father of a multitude,"Â and other names beginning with Ab-.
Boy/Male
Arabic, Islamic
Austere; Frowning
Boy/Male
American, Australian, Chinese, Christian, Dutch, Hebrew
Father of a Multitude; Breath; He who is High is Father; Diminutive of Abraham
Boy/Male
Arabic, Muslim
Name of a Great Jurist and Pupil of Imam Abu Hanifah
Surname or Lastname
English
English : patronymic from Back 2.German : from a short form of a Germanic personal name, related to Old High German bÄgan ‘to fight’.North German form of Backhaus.
Boy/Male
African, Arabic, Australian, French, German
Father (Pahlavi); Master
Female
Gaelic
Variant form of Irish Gaelic Meadhbh, MÉABH means "intoxicating." In mythology, this is the name of a warrior queen of Connacht, the wife of Ailill.
Boy/Male
American, British, English, German
Baker
Boy/Male
Indian
Servant, Devotee, Slave
Male
Portuguese
Portuguese name ABÃLIO means "able; proficient; skillful."
Boy/Male
Australian, British, English, French, German
Father
Male
Hebrew
Pet form of Hebrew Abraham, ABI means "father of a multitude." Also spelled Avi. Compare with feminine Abi.
Boy/Male
Arabic, Muslim
Well-known Sahabi Abu Moosa Al-ashari
Male
French
French form of German Abelard, ABÉLARD means "noble strength."
Female
English
Anglicized form of Hebrew Abiy, ABI means "my father." In the bible, this is the name of the mother of King Hezekiah. Compare with masculine Abi.Â
Boy/Male
Muslim
Servant, Devotee, Slave
Girl/Female
German
Highborn and Steadfast
Boy/Male
Biblical
My father.
Female
Irish
Variant form of Irish Meadhbh, MÉABH means "intoxicating." In mythology, this is the name of a warrior queen of Connacht, the wife of Ailill.
ABX TEST
ABX TEST
Boy/Male
Tamil
Dhrutav | தà¯à®°à¯à®¤à®¾à®µÂ
Boy/Male
Indian
Long lived
Boy/Male
Arabic
Lamp; Light
Girl/Female
Hindu, Indian
Flower
Female
Russian
 Short form of Russian Annina, NINA means "favor; grace." Compare with other forms of Nina.
Surname or Lastname
English
English : habitational name from any of the many places throughout England named Bradley, from Old English brÄd ‘broad’ + lÄ“ah ‘woodland clearing’.Scottish : habitational name from Braidlie in Roxburghshire.Irish (Ulster) : adopted as an English equivalent of Gaelic Ó Brolcháin.
Girl/Female
English American
Combination of Deana (divine) and Dina (from the valley; avenged).
Surname or Lastname
English
English : from Middle English pertriche ‘partridge’ (via Old French and Latin from Greek perdix), either a metonymic occupational name for a hunter of the bird or a nickname for someone with some fancied resemblance to it, or a habitational name for someone living at a house distinguished by the sign of a partridge. This surname has been established in Ireland since the 17th century. As an American family name, it has probably absorbed some cases of other European surnames with the same meaning, e.g. Italian Pernice.
Girl/Female
Muslim
Girl/Female
Indian
Excellent (Name of the wife of caliph Harun al Rashid)
ABX TEST
ABX TEST
ABX TEST
ABX TEST
ABX TEST
v. t.
To furnish with a helve, as an ax.
adv. & a.
Braced aback.
n.
The fifth month of the Jewish year according to the ecclesiastical reckoning, the eleventh by the civil computation, coinciding nearly with August.
v. t. & i.
To ask; to inquire or inquire of.
n.
An Anglo-Saxon battle-ax, or halberd.
n.
One who wields an ax.
n.
A member of a compound quantity; as, a or b in a + b; ab or cd in ab - cd.
v. t. & i.
Alt. of Abye
n.
A rude ancient ax or hatchet, seen in museums.
n.
Among weavers, yarn for the warp. Hence, abb wool is wool for the abb.
n.
The handle of an ax, hatchet, or adze.
n.
Alt. of Axe
n.
An ax with a broad edge, for hewing timber.
n.
An ancient military weapon; a battle-ax.
a.
Having the form of an ax hatchet.