GRAZ, Austria--(BUSINESS WIRE)--Nov 7, 2024--
USound announced the results of a drop-test comparison between the company’s Conamara UA-C0503-3T tweeter and a standard balanced armature (BA) tweeter. Dropped on an asphalt concrete floor from a 150 cm height for 20 consecutive times, USound’s Conamara speakers remained unharmed, reaching a remarkable 100% survival rate.
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Maintaining their total harmonic distortion (THD) and sound pressure level (SPL) results, the Conamara microspeakers were proven to be up to 25% more reliable than their competition. Under the same conditions, the BA tweeters exhibited a lower resonance frequency rate, noticeable SPL changes (+/- 7 kHz), while their THD limits were exceeded on at least two occasions. According to the results, the BA tweeters had a survival rate of 75% - 83% when measured on 100 mVrms and 200 mVrms data respectively.
“These results confirm that USound MEMS loudspeakers excel in both audio quality and durability, delivering a level of performance unmatched by traditional speakers. With significantly wider bandwidth, much lower Total Harmonic Distortion (THD), and 100% drop-proof reliability, our MEMS loudspeakers are the superior choice for next-generation wearables and hearables, setting new standards for audio clarity and reliability.”
– Ferruccio Bottoni, Co-founder & CEO of USound
Conducted for a product qualification in October, 2024, the unguided drop-test followed the IEC60068-2-31 environmental testing standards. The test results were evaluated using USound’s standard passing criteria for reliability tests. The two criteria state that, after the speakers are dropped, the sound pressure level (SPL) should not decrease or increase more than 3 dB, and that the increase of the total harmonic distortion (THD) must be below 5%.
The positive news follows another recent development: the ability to drive the Conamara MEMS speakers without DC bias, bringing a classic approach to speaker integration, while further decreasing power consumption.
About USound
USound is a fast-growing MEMS speaker company that enables its customers to bring new revolutionary audio products to the market. USound’s unique selling proposition is based on radical miniaturization, power reduction and increased production efficiency. Learn more by visiting www.usound.com
USound's Conamara speakers proven 100% drop-proof. (Photo: Business Wire)
OTTAWA, Ontario (AP) — Boston College teammates James Hagens and Ryan Leonard each scored twice and the defending champion United States routed Switzerland 7-2 on Thursday in the world junior hockey quarterfinals.
Boston University's Brandon Svoboda, Notre Dame's Danny Nelson and Denver's Zeev Buium also scored, Hampton Slukynsky of Western Michigan made 17 saves and BC’s Gabe Perreault had three assists.
“I thought we played a good back and forth game with them, got pucks behind them and went to work,” Svoboda said. “We’re a fast team, and when we play like that, we’re hard to beat. We’re watching video every day, and if we can keep improving little things then we’ll continue to be successful.”
The Group A champion Americans awaited the late quarterfinal between Canada and Czechia at Canadian Tire Centre to learn their semifinal opponent.
“Overall, I thought we were ready to play and did what we needed to do against a good opponent in Switzerland,” said U.S. coach David Carle of Denver. “We’ll get ready now for the semifinals and look forward to the challenge in front of us.”
Nils Rhyn and Andro Kaderli scored for Switzerland.
In the other quarterfinals at TD Place, Group B winner Sweden beat Latvia 3-2, and Finland topped Slovakia 5-3.
David Edstrom, Zeb Forsfjall and Anton Wahlberg scored for Sweden. Jesse Nurmi had two goals and an assist for Finland, a 4-3 overtime winner over the United States in group play.
In the relegation game, Maxim Schafer scored twice to help Germany beat Kazakhstan 4-3. Germany secured a spot next season in the tournament, while Kazakhstan was demoted to the Division I Group A tournament.
AP sports: https://apnews.com/sports
Finland forward Rasmus Kumpulainen (18) celebrates his goal with teammates Benjamin Rautianen (37) and Konsta Helenius (19) during the second period of an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Slovakia goaltender Samuel Urban (30) makes a save from a shot by Finland forward Julius Miettinen (27) during the second period of an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Finland goaltender Noa Vali (31) makes a save during first period of an IIHF World Junior Hockey Championship quarterfinal match against Slovakia in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Finland forward Arttu Alasiurua (29) falls to the ice as Slovakia forward Frantisek Dej (22) and teammate Roman Kukumberg (16) battle for the puck during the first period of an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Finland forward Jesse Nurmi (24) celebrates his goal with teammates Mitja Jokinen (2) and Daniel Nieminen (7) during the first period of an IIHF World Junior Hockey Championship quarterfinal match against Slovakia in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Team Latvia defenseman Krisjanis Sarts (2) takes a shot on Team Sweden goaltender Melker Thelin (35) during the first period of an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Team Sweden forward Otto Stenberg (25) tries to score on Team Latvia goaltender Linards Feldbergs (29) as Latvia forward Davis Livsics (7) and defenseman Darels Uljanskis (15) defend during the third period of an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
Team Sweden goaltender Melker Thelin (35) celebrates his team's win over Team Latvia with defenseman Axel Sandin-Pellikka (4) and forward Felix Unger Sorum (16) after an IIHF World Junior Hockey Championship quarterfinal match in Ottawa, Ontario Thursday, Jan. 2, 2025. (Spencer Colby/The Canadian Press via AP)
USA forward Brandon Svoboda (8) celebrates his goal with forward Austin Burnevik (23) and forward Max Plante (22) as Switzerland goaltender Christian Kirsch (1) looks on during the first period of a quarterfinal match at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
USA defenseman Logan Hensler (3) reacts as he blocks a shot with his body during second period of a quarterfinal match against Switzerland at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
USA forward Brandon Svoboda, left, checks Switzerland forward Simon Meier (27) as USA forward Max Plante (22) skates with the puck during the third period of a quarterfinal match at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
USA goaltender Hampton Slukynsky (30) stretches prior to the start of the third period of a quarterfinal match against Switzerland at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
USA forward Ryan Leonard (9) moves towards the net as Switzerland goaltender Christian Kirsch (1) keeps an eye on the puck and defenseman Nils Rhyn (14) defends the first period of a quarterfinal match at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
USA forward Danny Nelson (17) celebrates his goal as Switzerland forward Kimo Gruber (12) skates by during the first period of a quarterfinal match at the IIHF World Junior Hockey Championship in Ottawa, Ontario Thursday, Jan. 2, 2025. (Sean Kilpatrick/The Canadian Press via AP)
