audio   213722

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The Meridian 258 is a dedicated rack-mount Eight Channel Power Amplifier.
Audio  Hometheater 
16 hours ago by conseil
One new board turns into a complete sound and light lab - CDM Create Digital Music
Five knob and an LDR, which you can wire into circuits you're building as a control interface.
diy  electronics  audio  sound 
21 hours ago by ssam
The Best Kids Headphones | The Wirecutter
If you have a kid in your life who needs a pair of headphones, the Puro BT2200 is the best option to protect growing ears. After putting in around 80 hours of research—including speaking to experts at the WHO, CDC, and NIDCD, seriously considering more than 50 models of kids headphones, and testing and measuring the top 30 contenders for 59 hours across several days—we’re confident that the Puro BT2200 is the best choice. The Puro headphones not only met our volume-limiting test standards but also were the only pair liked by both the toddlers and the big kids who helped us test. They support Bluetooth (which can provide more effective volume limiting than traditional headphone tech), but they also work corded (so you can use them with lots of devices), and they sound good enough for adults to use, too.
safety  health  children  headphones  audio  wirecutter  comparo 
yesterday by rgl7194
Children’s Headphones May Carry Risk of Hearing Loss - The New York Times
These days, even 3-year-olds wear headphones, and as the holidays approach, retailers are well stocked with brands that claim to be “safe for young ears” or to deliver “100 percent safe listening.” The devices limit the volume at which sound can be played; parents rely on them to prevent children from blasting, say, Rihanna at hazardous levels that could lead to hearing loss.
safety  health  children  headphones  audio  nytimes 
yesterday by rgl7194
Study finds half of kids headphones exceed safe volume limits | iLounge News
An investigation has found that nearly half of headphones intended for children don’t reliably keep volume down to safe levels to prevent hearing damage, The New York Times reports. Many headphones marketed as “safe for young ears” and promising to provide “100 percent safe listening” had “design flaws that could allow a child to bypass their volume-reduction features easily,” proving that volume-limiting headphones are not the perfect solution many parents had hoped. The worst among the 30 pairs tested “produced sound so loud that it could be hazardous to ears in minutes,” with some relying on resistors within the cord to limit volume, which sometimes failed to work at all. The full results of The Wirecutter’s investigation are available on its website.
safety  health  children  headphones  audio 
yesterday by rgl7194
SoundNet: Learning Sound Representations from Unlabeled Video - MIT
"We learn rich natural sound representations by capitalizing on large amounts of unlabeled sound data collected in the wild. We leverage the natural synchronization between vision and sound to learn an acoustic representation using two-million unlabeled videos. Unlabeled video has the advantage that it can be economically acquired at massive scales, yet contains useful signals about natural sound. We propose a student-teacher training procedure which transfers discriminative visual knowledge from well established visual recognition models into the sound modality using unlabeled video as a bridge. Our sound representation yields significant performance improvements over the state-of-the-art results on standard benchmarks for acoustic scene/object classification. Visualizations suggest some high-level semantics automatically emerge in the sound network, even though it is trained without ground truth labels."
papers  deep-learning  convnet  audio  scene-analysis 
yesterday by arsyed

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