Tagged: audio

Hakology – Retropie HDMI audio fix

No audio over HDMI on retropie? No problem, here’s your solution i’ve seen a few fixes on the web lots varied some were overly complicated so I decided to write up a really simple fix. Tested and working on the RPi3MB.

Boot retropie
Go to the retro pie menu
Go to the audio menu and press ‘A’
Ensure HDMI is selected, also check the mixer volume is at 100%
Save settings and return to the retropie menu
Quit emulation station
Run …
sudo nano /boot/config.txt

uncomment the following …
#hdmi_drive=2
so it looks like this …
hdmi_drive=2

also uncomment …
#hdmi_force_hotplug=1
so it looks like this …
hdmi_force_hotplug=1

Press ctrl+x to save the file.
now run …
amixer cset numid=3 2
and ..
sudo reboot

Hopefully you should now have audio over HDMI

Hakology Day 9 : Blog Entry

[1124]
So it begins, late night last night, got the SDR working under windows. Todays goals, get the SDR working under linux and gqrx, look at what I managed to capture in the log and start a video showing how to setup SDR#.
[/1124]

[1215]
Really don’t want to stop logging messages lol, but I suppose its time to start making notes. Once I can get this running on the RPi ill leave it logging 24/7 for a while so I can analyse the data. Still lots of data being sent that shouldn’t be, names, phone numbers, address information, IP addresses, email addresses, URLs … and I’m sure if I log for long enough the obligatory username and password.
[/1215]

[1306]
So I can’t show or share any of the data I’m collecting. Hibby just pointed me to (Legal stuff) … even though I can’t share the data I can show you how to demodulate the signals yourself.
[/1306]

[1415]
Written up notes for SDR# installation.
[/1415]

[1513]
Executing operation tidy up for recording later also doing a few other chores.
[/1513]

[1606]
Still tidying 🙁 b/c I’m a messy bugger.
[/1606]

[1613]
Random picture for today …
Since I’m working on radio stuff here’s my baofeng handset its the uv-5r, a great starting handset for people looking to get in to HAM radio and start learning. I bought one relatively cheap on ebay around £20, before I got my licence so I could scan and listen a little. I’ve some other scanners and sets but ill save those for another day.
baofeng
[/1613]

[1713]
meh RL … need to script my house work or hack together some sort of roomba capable of washing up and making tea/coffee on demand.
[/1715]

[1824]
Chilling out time for a coffee and some food. BBL
[/1825]

[21.41]
A few pages of notes written and a rough idea for an introduction to SDR. Time for a brew and to record / talk through the audio. Will report back in a while.

Useful links:
https://en.wikipedia.org/wiki/Radio
https://en.wikipedia.org/wiki/AM_broadcasting
https://en.wikipedia.org/wiki/FM_broadcasting
https://en.wikipedia.org/wiki/Software-defined_radio
http://www.sigidwiki.com/wiki/Signal_Identification_Guide

Captured a little extra audio for the hakology introduction too.
[/2147]

[2344]
Sleep required.
[/2344]

[0448]
Woke up after a few hours sleep been doing a little radio research, too early to start the next blog entry, too late to be editing this one hmmm.
No vblog for day nine either will have to make up for it later.
[/0450]

Hakology Day 5 : Blog Entry

[11.41]
Nothing like a fresh coffee to start the day.
[/11.41]


[12.36]
First tech support call to configure a printer, nice and easy start. Still have a DVD drive to repair and another person that wants some security advice but ill get on those next week. Time to start recording some stock footage and get editing.
[/12.36]


[12.57]

Background noise.

[/12.57]


[13.23]
Recharging cameras and having a brew.
[/13.23]


[13.44]
Key-framing, key-framing, key-framing … and listening to a little drum and bass.
[/13.44]


[14.15]
Pastebin for the steam controller install script.
http://pastebin.com/HvuAJ8iN
[/14.15]

[14.46]
Best analytics data to date …

Can you imagine the disappointment when whoever discovered it was a 3D printed leg for a dog.
[/14.46]


[15.33]
More stock footage recorded just transferring the files and going to get back to editing and compiling.
[/15.33]


[17.09]
Still editing and chopping stock footage, quite boring stuff but im making progress. Need to edit the audio in two locations and add a little more information but everything is coming together quite nicely. Then its Friday … game time and off to see a few friends, whoot. Planning a late night mumble if you want to join message me for the connection details, we’ll be hacking all the things.
[/17.09]

[18.30]
LEEROY MOTHER F%$£ING JENKINS Its time to stop for a while and blast the s&%$ out of some evil demons on the computer!!! BOOM HEAD SHOT, BOOM HEAD SHOT, BOOM HEAD SHOT, BOOM HEAD SHOT. BOOM! HEAD! SHOT!
[/18.30]

[23.47]
Well after a little gaming and a little sleep, I think its time for a coffee and some work. Then some more games hehe 🙂
[/23.47]

[2.16]
So I’ve kind of finished the first edit, doing a quick VBLOG, then some serious gaming till the wee hours.
[/2.16]

[3.05]

[/3.05]