Re: [SlimDevices: Radio] Radio run time on battery

2022-04-09 Thread Redrum


slartibartfast wrote: 
> That confirms my suspicions. Soft off until automatic shutdown just
> wastes battery capacity. I am up to 7 days since the last charge which
> is fine. If I had used the hard power off when the battery was new I
> might have managed 14 days.
> 
> Sent from my Pixel 3a using Tapatalk

My work here is done :)

Yea, it seems like soft off only turns off the audio amp (it can't turn
off networking because it needs to be ready to woken). on top of that I
saw very little quiescent current draw from the audio amp, even draw at
50% volume. I did see the current draw start to increase at about 70%
volume and up.

Its actually good to know. I'll have my radio, say outside, and have to
run an errand or something and turn it off (soft) thinking I am saving
battery. Now I know to turn it hard off.

Jim



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Re: [SlimDevices: Radio] Radio run time on battery

2022-04-09 Thread slartibartfast


Redrum wrote: 
> For completeness ~
> 
> I reran the test with the kill a watt and a SB Radio. The meter measures
> voltage (119vac), frequency (60Hz), current, wattage, power factor, and
> VA. So, I recorded the wattage, VA, and PF readings, as the the load
> seemed to change reactively, changing the PF.
> 
> Results below. Note that I also (as a check) calculated PF = W/VA, and
> there is a bit of a different from the readings, but at lower values, so
> perhaps resolution comes in to play. Note there are some goofy things
> too, like playing at 50% volume lowering the VA. 
> 
> 37661
> 
> Observation, soft power off (Clock Screen Saver) isn't off much at all.
> Perhaps only the audio amp gets turned off? You can hear it come on and
> off.
> 
> So @Slarti, looks like you either have to hard power off, or plug it
> back in when not in use :). I usually eventually plug mine in before the
> end of the day after using on battery.
> 
> I have not run the straight DC test, I do have the bits and pieces to do
> it, but am thinking it might be moot at this point.
> 
> @POMDev - Please help check my work, it's early in the AM again
> :rolleyes:
> 
> JimThat confirms my suspicions. Soft off until automatic shutdown just
wastes battery capacity. I am up to 7 days since the last charge which
is fine. If I had used the hard power off when the battery was new I
might have managed 14 days.

Sent from my Pixel 3a using Tapatalk





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Re: [SlimDevices: Radio] Radio run time on battery

2022-04-09 Thread Redrum


For completeness ~

I reran the test with the kill a watt and a SB Radio. The meter measures
voltage (119vac), frequency (60Hz), current, wattage, power factor, and
VA. So, I recorded the wattage, VA, and PF readings, as the the load
seemed to change reactively, changing the PF.

Results below. Note that I also (as a check) calculated PF = W/VA, and
there is a bit of a different from the readings, but at lower values, so
perhaps resolution comes in to play. Note there are some goofy things
too, like playing at 50% volume lowering the VA. 

37661

Observation, soft power off (Clock Screen Saver) isn't off much at all.
Perhaps only the audio amp gets turned off? You can hear it come on and
off.

So @Slarti, looks like you either have to hard power off, or plug it
back in when not in use :). I usually eventually plug mine in before the
end of the day after using on battery.

I have not run the straight DC test, I do have the bits and pieces to do
it, but am thinking it might be moot at this point.

@POMDev - Please help check my work, it's early in the AM again
:rolleyes:

Jim


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|Filename: radio and kaw.png|
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=37661|
+---+


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Re: [SlimDevices: Radio] WiFi connection unstable/lost on three Radios

2022-04-09 Thread Redrum


jeff52807 wrote: 
> Yes. And the problem radio had the issue of losing the wifi connection
> no matter where in the house that I tried it solo.  Right now it's been
> working for going on 6 hours synched to a non-problem radio.  I am
> puzzled.

I can't really help, all my radios are fine, I think it's really
interesting though. I am wondering if others out there with problems in
this thread (hello?!) might try sync. What's weird is in my experience
if one player (in my case a receiver) struggled, all others synced
struggled as well (rebuffering, then back, repeat cycle). So, sync made
it worse.

I am also not sure of the exact mechanism that LMS uses in sync that is
not present in a normal stream. Maybe one of the devs might be able to
shed some insight.

If curious maybe you could try both internet streams and your own
library, and also a different type of player (if you have one, or use
something like squeezelite-X if you have a PC) as the sync healer.

Jim



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