Great Blue Heron

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  • 24 Comments
Joined 1 year ago
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Cake day: July 4th, 2023

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  • Yep - I use Facebook and Instagram regularly. I spend a lot of time in both tapping on “hide this” or “show less of this” or “report and block user”, but I find it worth it for the interactions with some like minded people in hobby related groups. I’m aware of the privacy implications, but I figure I’ve been there for so long there’s not much more for them to learn about me. I use ad and tracker blocking to slow them down a little.












  • I suggest you learn about the difference between line level and speaker level. This article seems to do a decent job:

    https://www.electronicshub.org/speaker-level-vs-line-level/

    Your boiling water analogy does not fit - water boils at 100°C (depending on air pressure). It’s like the digital signal - boiled/not-boiled, on/off, 1/0, etc.

    The output of a DAC (Digital to Analogue Converter) is a line level analogue signal and this signal has an amplitude (voltage) that can be controlled. I’m not a software or audio engineer so I don’t understand how, but my reading and own testing supports this.

    My own simple test: I have a Google Pixel 4a and an Apple USB-C DAC (dongle). If I use headphones connected to either the phone audio jack or the DAC and any “normal” music player I can listen at full volume - it’s loud, but far from uncomfortable. If I use USB Audio Player PRO and configure direct hardware access to the DAC I cannot listen at full volume - it’s too loud.


  • No - I know the difference between a DAC and an amp. The Android (or, maybe it’s just Google Pixel devices, I can’t recall) audio subsystem limits audio output. My phone max. output is about 800mV. I believe they assume all output is going to earphones and they’re trying to protect your hearing. This happens even if you’re using a USB DAC. But, there is an app called USB Audio Player PRO (the may be others) that can bypass the Android audio subsystem and send output directly to the DAC and thereby get the full DAC output - typically around 2V.