Recent content by eas

USB is still primarily dumb devices plugged into intelligent hosts. The thing that has changed is that devices and hosts can hash out what pins are used for what, and what direction power is going to flow. There is also a way for USB devices to act as either a master or a slave, but this role...

Her delight here...

Re Tek310a. Neat, but can you use it as a sound card? ;)

This link gets closer. Only the first two pages of the article are available for free.

I really enjoyed it. I hope more of the footage gets released. It's apparently all on file with the Library of Congress as part of the copyright filing. Contrary to the "origin story," archivist Joe Lauro tracked down the footage and preserved it a decade and a half ago. It is, or was available...

Am I correct in assuming that you've unplugged the power brick from mains and pugged it back in?

There are (were?) plenty of Chinese class-D amp modules available, but most of the finished amps like these seem to use purpose-built, integrated boards. The one exception is the bluetooth functionality. Many, but not all, seem to use small PCB modules.

Rockets use all sorts of propellants. Solid propellants using synthetic rubber + oxidizer are common. Among liquid fuels, RP-1 (kerosene) is popular due to volumetric energy density and the fact that it is liquid at room temperature and so avoids the cryogenic temperatures needed for liquified...

For perspective, if you plugged your headphones in (and out) twice a day, every day, it would take over 10y to reach 8000 cycles. My first big electronics purchase came in the 8th grade or so. It took a lot of paper route money + cash birthday and Christmas gifts to buy. It was an Aiwa...

The people who aren't that fussed would seem to be be those who knew about the study and didn't participate, or went so far as to obtain the samples, but never submitted a result. There were ~450 people who made it past both those bars. Of them, there are the 25%, who you seem focused on, who...

PEACE seems popular.

Mac Rumors jumped to an incorrect conclusion. The built in speakers on the iPhone XR are still supported for Atmos playback (such as it is). As to why Apple changed the language? Who knows, but someone noted that while the XS and XR were announced at the same time, The XR shipped about a month...

What is this actually measuring? Are these pages/records automatically generated from some comprehensive source, or are they created by dedicated volunteers. If it's the latter, then the apparent decline may instead reflect the variable amount of time it takes for things to be cataloged. And...

By out-of-band I mean separately from the audio bitstream. I base this on the behavior of the Qudelix UI app, which shows the DACs internal volume control and also the volume control level of the USB or Bluetooth host device. Manipulating the iOS volume control changes the reported volume...