Autor Thema: Brand new user, want to monitor dB levels from microphone input  (Gelesen 819 mal)

Offline hal8999

  • Newbie
  • Beiträge: 2
Hey all,

I am planning to install fhem on a brand-new ubuntu instance for a sole purpose. I have a contact microphone and I would like to log the dB of noise as close to real-time as possible. I will be using the 3.5mm input plug on the built-in sound card on the motherboard... Thanks!

Offline herrmannj

  • Global Moderator
  • Hero Member
  • ****
  • Beiträge: 4685
Antw:Brand new user, want to monitor dB levels from microphone input
« Antwort #1 am: 03 Februar 2018, 22:25:53 »
welcome to FHEM! good luck !
smartVisu mit fronthem, einiges an HM, RFXTRX, Oregon, CUL, Homeeasy, ganz viele LED + Diverse

Offline hal8999

  • Newbie
  • Beiträge: 2
Antw:Brand new user, want to monitor dB levels from microphone input
« Antwort #2 am: 05 Februar 2018, 04:02:04 »
thanks! I realized in my original post that I didn't actually ask a question, hah!

What module would I use to measure input from the sound card's microphone? I only need to measure the dB level, not the actual sound. So I don't want to be recording WAV files or any such thing to disk. Just the levels...

(PS: when I set the default language to English, the captcha challenges are still in german, which is a little annoying. is there any way to fix that in your phpBB?)

Offline rudolfkoenig

  • Administrator
  • Hero Member
  • *****
  • Beiträge: 19353
Antw:Brand new user, want to monitor dB levels from microphone input
« Antwort #3 am: 05 Februar 2018, 09:46:06 »
Zitat
What module would I use to measure input from the sound card's microphone? I only need to measure the dB level, not the actual sound. So I don't want to be recording WAV files or any such thing to disk. Just the levels...
As far as I know there is no such FHEM Module. Anyway, FHEM ist not well suited to convert raw audio to DB values. I wrote a small C-Program about 10 years ago for this taks, which dumped the output in a FHEM compatible format, so I could visualize it in FHEM with a fake FileLog.

Zitat
(PS: when I set the default language to English, the captcha challenges are still in german, which is a little annoying. is there any way to fix that in your phpBB?)
Not that I know of. There are some 10 "challanges", half of them is in english, so you could try to reload the side, if it appears unsolvable.

Offline JoWiemann

  • Tester
  • Hero Member
  • ****
  • Beiträge: 2463
Antw:Brand new user, want to monitor dB levels from microphone input
« Antwort #4 am: 05 Februar 2018, 13:09:11 »
Welcome to Fhem. As far as I know there ist a Solution in ESP Easy. And for ESP Easy you will find the Fhem module EspBridge.


Gesendet von iPad mit Tapatalk

Grüße Jörg
Jörg Wiemann

Slave: RPi B+ mit 512 MB, COC (868 MHz), CUL V3 (433.92MHz SlowRF); FHEMduino, Aktuelles FHEM

Master: CubieTruck; Debian; Aktuelles FHEM