Wednesday, November 01, 2017

Linux Drive Series/C210

Auxiliary Commands
$ journalctl
$ systemctl
$ alsactl

$ lsof | grep pcm  #still using
$ lsmod | grep snd #modules

$ sudo apt-get remove pulseaudio
$ sudo apt-get remove alsa
$ sudo apt-get install alsa


$ lspci 
Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller

$ lspci -v | grep Audio
$ sudo modprobe snd-hda-intel
modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/4.10.0-37-generic/modules.dep.bin'
modprobe: FATAL: Module snd-hda-intel not found in directory /lib/modules/4.10.0-37-generic

$ vi /etc/modprobe.d/alsa-base.conf  #for verify



*When is right installed
$ cat /proc/asound/card0/codec* | grep Codec
Codec: Realtek ALC887

$ cat /proc/asound/cards
 0 [Intel                ]: HDA-Intel - HDA Intel
 1 [NVidia            ]: HDA-Intel - HDA NVidia
 2 [U0x46d0x825 ]: USB-Audio - USB Device 0x46d:0x825

Upgrade
[*] https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS
$ rm -r ~/.config/pulse;
$ pulseaudio -k



Note: try to select previous  version on grub

References
 [1] https://help.ubuntu.com/community/HdaIntelSoundHowto
 [2] https://askubuntu.com/questions/508692/intel-corporation-7-series-c210-series-isnt-being-detected-by-any-module
 






Tuesday, October 31, 2017

Lecture about SoundScape


Acoustic scenes, Acoustic events and Feature aggregation

D-CASE2013

Environment sound recognition using short-time feature aggregation
https://link.springer.com/article/10.1007/s10844-017-0481-4

Task of segmentation
  Speech recognition
  Musical information retrieval(MIR)
  Environment sound
  Survillance
  Index of video content
Task of acoustic events classification
  Statistic large set of features and K-NN
  Feature agregation (Bag of feaures)
  HMM/GMM(better for segementation and annotation for small scales)
  Deep learning
  Blind segmentation and SVM


Recurrence quantification analysis(RQA), RQA Features
Short Time Fourier Transform (STFT)

Running apps

Runtastic (I uninstalled because force to update your device - Internet connection problems) Runkeeper  (Wrong GPS tracking) Strava   (Curr...