(Colin about episode 65)
Really appreciate the podcast, thanks a lot to all of you.
Just to let you know I downloaded episode 65 Oct 22nd and through tablet speakers or wired earphones or a new Bluetooth speaker the volume is so low you cannot realistically listen I’m afraid. I immediately switched to another podcast at the same volume and it boomed through.
Hopefully this is useful feedback.
Thanks again for the regular podcasts I am really enjoying the show.
Belfast, Northern Ireland.
(Mark Rice to fifty from episode 64)
I might be able to help with your networking issues. I use Arch on Pi2 and my laptop.
You can either use wifi-menu to generate a network profile, or copy from /etc/netctl/examples to /etc/netctl/
To enable to profile, use <systemctl enable netctl@wlan_network_profile.service> and <systemctl start netctl@wlan_network_profile.service>
Be mindful of the not using a profile name with a dash in the name, but an underscore instead. The profile fails to start with a dash.
Here is an example profile.
### \” before the key does matter, it won’t work otherwise
usage: wpa_passphrase <ssid> [passphrase]
And last, at the end of wpa_supplicant.conf
(Mark Rice on a G+ post talking about certs on a pi print server. Answered by Joe Hecht)
1. Review of FriendlyArm.com NanoPi-M3 and NanoPC-T3.
2. Porting a distribution to a new device, path to getting started: http://wiki.friendlyarm.com/wiki/index.php/NanoPC-T3#Flash_image_to_eMMC_with_eflasher
3. At least a couple of these classes look interesting: http://www.instructables.com/classes/?utm_source=classesNL&utm_medium=email
4. $7 Orange Pi Zero, specs comparable with $35 NanoPi Neo: https://www.aliexpress.com/store/product/New-Orange-Pi-Zero-H2-Quad-Core-Open-source-development-board-beyond-Raspberry-Pi/1553371_32760774493.html
5. Joe Hecht details how to roll your own multi boot SD card for many computers: https://plus.google.com/+FiftyOneFifty/posts/UcSq8NJPpNr?sfc=true
Fun with SOX
How to truncate silence
sox -S in_file.wav out_file.wav silence 1 0.1 0% -1 0.1 0%
How to change the sample rate of an audio file
Sox in_file.wav -r (sample rate) out_file.wav
To combine multiple audio files (must have the same sample rate)
Sox file1.wav file2.wav file3.wav new_file.ogg
How to find out what the sample rate of an audio file is
I have found a nice low power Pfsense Box. It has 4 Intel NICs, either a J1900 Quad core or
3215U dual core Intel processor and up to 8Gigs of Ram. It is the QOTOM Q190G4. The -S1 version supports an MSATA SSD, while the -S2 version can have 2.5 inch hard drive.
The units are very low power fanless industrial computers. They are cool thru a finned metal
Top. They are available from Amazon and Aliexpress
Next recording date: Nov. 18, 2016