2015-06-27

Linux Mint 17 on Laptop Acer Aspire-E5-571G PART4



  • Using Microphone

Run 
$ alsamixer 
Press F6 select sound card...  Set Mic Boost to 20 and disable Auto-Mute M (use arrow buttons)




Check audio device for capture audio from mic, by

$ cat /proc/asound/devices

  1:        : sequencer
  2: [ 0- 8]: digital audio playback
  3: [ 0- 7]: digital audio playback
  4: [ 0- 3]: digital audio playback
  5: [ 0- 0]: hardware dependent
  6: [ 0]   : control
  7: [ 1- 0]: digital audio playback
  8: [ 1- 0]: digital audio capture
  9: [ 1- 0]: hardware dependent
 10: [ 1]   : control
 33:        : timer

Try record for 20 seconds

arecord -f cd -D hw:1,0 -d 20 test.wav

It worked for me, I able to hear myself. 

Graphical "Sound Preferences" looks like not handle the device properly. To use mic with graphical apps you probably have to select the capture device manually.

  





2015-06-13

Internet connection sharing with Raspberry Pi via Ethernet

My laptop is connected to internet via WiFi and I want to connect raspberrypi via Ethernet cable. I want to be able connect to raspberrypi via ssh and I also want for raspberrypi to be able access the internet. I have basic understanding about networks. And I think this task should event easier then setup a router. Bud it is not! Unless you know exactly what to do! You can find tips with a million terminal commands... You  can study advanced networks... bridging or nat and then run dhcp server... If you running a server this is all great! On a laptop you do not need all this...


Click Edit!

Change to "Shared to other computers"



Just my local network connection information, no voodoo magic!

First time I set this up! It did not work! Solution is: RESET laptop after configuration is done!

To find out raspberrypi IP:

rolas@Aspire-E5-571G ~ $ cat /var/lib/misc/dnsmasq.leases
1434209461 b8:27:eb:75:89:01 10.42.0.79 raspberrypi ff:eb:75:89:01:00:01:00:01:1c:dd:60:6a:b8:27:eb:75:89:01


https://www.youtube.com/watch?v=ZK-JHfJqmkY