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by energyi
Wed Feb 12, 2020 2:36 am
Forum: General discussion
Topic: Raspberry Pi with digital audio output to amplifier using Spotify
Replies: 5
Views: 203

Re: Raspberry Pi with digital audio output to amplifier using Spotify

Optics SPDIF is easy off USB. Mentioned in this blog. https://other2funstuff.blogspot.com/201 ... e.html?m=1
by energyi
Wed Feb 12, 2020 2:30 am
Forum: General discussion
Topic: Circuits in space
Replies: 21
Views: 674

Re: Circuits in space

"... only question is if circuits need any special preparation to go into space, or do they just work the same way?"
by energyi
Sun Dec 01, 2019 1:04 am
Forum: Off topic discussion
Topic: Jetson Nano or RPI4
Replies: 10
Views: 1356

Re: Jetson Nano or RPI4

Forum is usually more right than me. Sorry, though for sure I did Hangout calls with older rpi systems, might have been microphone off USB camera. Sorry for my confusion. Octane scores discussed in previous post ( https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=243783 ) constantly moving tar...
by energyi
Sat Nov 30, 2019 10:59 pm
Forum: Off topic discussion
Topic: Jetson Nano or RPI4
Replies: 10
Views: 1356

Re: Jetson Nano or RPI4

You may be right. Looks like at least 4 connectors on the audio output. I've used it successfully with headphones. But haven't tested it with a headset. Seems like my rpi2&3's worked with headsets.

Enegyi
by energyi
Sat Nov 30, 2019 8:46 pm
Forum: Off topic discussion
Topic: Jetson Nano or RPI4
Replies: 10
Views: 1356

Jetson Nano or RPI4

If anyone is interested in a comparison of the Jetson Nano to the RPI4 I wrote up a comparison including the audio and video capabilities. https://other2funstuff.blogspot.com/2019/11/jetson-nano-and-rspberry-pi-4.html And just as heads up Microcenter has lowered prices on some RPI4s in store. And Ne...
by energyi
Wed Jul 31, 2019 1:48 pm
Forum: General discussion
Topic: A simple PI4 fan controller
Replies: 3
Views: 2757

Re: A simple PI4 fan controller

Thanks for the post and experiment. Estimated cost? Might want to check fan blowing both into and out of enclosure for energy and cooling difference.
by energyi
Sat Jul 27, 2019 9:17 pm
Forum: General discussion
Topic: Using the pi as Hi Fi system.
Replies: 10
Views: 2602

Re: Using the pi as Hi Fi system.

Pick a HAT or USB audio card. Try Moode Audio dedicated audio software.
by energyi
Sun Jul 14, 2019 3:14 pm
Forum: General discussion
Topic: Pi Zero W is $5 at Microcenter
Replies: 3
Views: 524

Re: Pi Zero W is $5 at Microcenter

Qty1 is always $5. Except on pi day when it is $3.14. Can't seem to leave the store without one.
by energyi
Fri Jul 12, 2019 10:14 pm
Forum: General discussion
Topic: Pi 4 heat sinks
Replies: 21
Views: 4757

Re: Pi 4 heat sinks

I'm running without a heat sink, but with a fan blowing up direction in a open walled case and temp stays in low 40's.
by energyi
Sat Jul 06, 2019 2:39 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 562
Views: 239877

Re: Raspberry Pi 4 temperature

PhilE wrote: ↑
Tue Jul 02, 2019 8:09 am
 By the way, if you run "sudo ./vl805" with no parameters it displays the version of the currently running firmware. Note that this may differ from what's in the EEPROM if you've just reprogrammed it but not rebooted.
VL805 FW version: 000137a8
by energyi
Sat Jul 06, 2019 2:29 am
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Today reflashed Raspbian Buster desktop. FLAC files from original source are now playing fine in VLC with Pi4 4 GB RAM. Files that were transferred previously still do not work. Something was wrong with the file transfer which corrupted the FLACs, don't know what it was. Go figure.
by energyi
Tue Jul 02, 2019 3:05 am
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

drgeoff wrote: ↑
Mon Jul 01, 2019 11:06 pm
You did reboot after editing /boot/config.txt?
[/quote]

Yes
by energyi
Mon Jul 01, 2019 9:51 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

jamesh wrote: ↑
Sun Jun 30, 2019 8:38 am
 Did you test with the memory settings described above?
Sorry, didn't see that suggestion. Yes, changed to total_mem=1024, still gaps in playback on pi4 4 GB RAM.
by energyi
Mon Jul 01, 2019 12:41 am
Forum: General discussion
Topic: Not all RPI 4's are equal?
Replies: 34
Views: 5618

Re: Not all RPI 4's are equal?

0.357 watt difference is significant.
by energyi
Sun Jun 30, 2019 2:47 am
Forum: Raspbian
Topic: Audio Distortion using mpg321/123 or aplay
Replies: 14
Views: 1805

Re: Audio Distortion using mpg321/123 or aplay

What files have to be removed or purged to totally remove pulseaudio? pi@raspberrypi:~ $ dpkg -l | grep pulseaudio ii pulseaudio-dlna 0.5.3+git20170406-1 all Stream audio to DLNA devices and Chromecasts ii pulseaudio-utils 12.2-4 armhf Command line tools for the PulseAudio sound server ii xfce4-puls...
by energyi
Sat Jun 29, 2019 10:31 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Anyone else having audio challenges on a 4 GB RAM rpi4 running FLACs with VLC?
by energyi
Sat Jun 29, 2019 9:53 pm
Forum: General discussion
Topic: Not all RPI 4's are equal?
Replies: 34
Views: 5618

Re: Not all RPI 4's are equal?

How they can be identified?`
by energyi
Sat Jun 29, 2019 9:31 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 2207

Re: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Saw the official case and thought that the pi4 is going to need a fan because my temps were already higher than I like without a case so didn't purchase. The outdated octane scores I posted didn't include any case in a relatively cool room.
by energyi
Fri Jun 28, 2019 6:48 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Yes, had a USB 3.0 thumbdrive and USB 3.0 Hard drive connected. Put the FLACs onto the desktop, shutdown, removed t he USB 3.0 devices. Still, FLAC over VLC doesn't work properly, gaps, jumps.

Again, worked on 1 GB RAM with USB 3.0 devices, not working on 4 GB RAM. Thanks.
by energyi
Fri Jun 28, 2019 1:06 pm
Forum: General discussion
Topic: Here is a printable case I designed for the Rpi 4 :)
Replies: 2
Views: 678

Re: Here is a printable case I designed for the Rpi 4 :)

Temperatures? Looks good, thanks for sharing.
by energyi
Fri Jun 28, 2019 12:49 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1787

FLAC working on Rpi4 1 GB, not working on 4 GB

Any reason a FLAC file plays with gaps on a 4 GB RAM Rpi4, but works fine on 1 GB RAM version? Same microSD card, VLC player.
by energyi
Thu Jun 27, 2019 8:11 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 2207

Re: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Outdated Octane Benchmark Score on Raspberry Pi 4 4 GB RAM is 8454.

Just trying to show rpi scores. Yes, have lots of other scores from other OS and boxes, but hoping this is helpful to the Rpi community to compare and contrast old benchmarks to new 4 versions.
by energyi
Thu Jun 27, 2019 5:15 am
Forum: General discussion
Topic: How is 3.5 mm analog audio out on PI4?
Replies: 26
Views: 12263

Re: How is 3.5 mm analog audio out on PI4?

Previously wrote: Audio output from 4B is excellent. That was running FLACs with VLC. However, that was on a 1 GB RAM. With a 4 GB RAM rpi 4B the audio output is bad. Gaps, skips. Don't know why it was different, microSD card and USB 3.0 thumb-drive and hard drive is exactly the same. You would thin...
by energyi
Wed Jun 26, 2019 10:57 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 2207

Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Thought if anyone was interested I would post my Octane Benchmark score for the Raspberry Pi 4 1 GB RAM straight out of the box, no logging into anything, just going immediately to http://chromium.github.io/octane/. Score for the Raspberry Pi 4 1 GB RAM was 7652. This benchmark is outdated, but I st...
by energyi
Wed Jun 26, 2019 10:47 pm
Forum: General discussion
Topic: 1 GB RAM Raspberry Pi 4 Optimization
Replies: 13
Views: 3563

1 GB RAM Raspberry Pi 4 Optimization

If you are like me, you might not have gotten access to the higher GB Ram models because they were sold out. The 1 GB RAM version seems good in its own right; audio is surprisingly good! Purchased a 64 GB Class 10-UHS-1 microSDXC card which I am hoping can somehow make up for the reduced onboard RAM...

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