Voice Activated Streaming

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armbrecht

Newbie
Joined
Apr 14, 2013
Messages
1
Hi there,

Im trying to find streaming software which suppresses silence on a live stream. Im using a Raspberry Pi running Raspian with Darkice and Icecast2 but im getting the typical 50/60hz hum through the feed. Ive tried different power packs, ground loop isolator, mono plugs, power filter etc....no go :( now im just trying to find software which will help me suppress the hum during silent periods (the hum isnt noticeable when talking is coming through the feed).

Any help would be greatly appreciated...
 

talkpair

Member
Joined
Apr 27, 2009
Messages
976
Location
Clinton County, MO
Before you get too wrapped up in more software, check to see if your darkice configuration file contains a "highpass =" line, like the one in kb4ytm's darkice configuration file.

In this example, frequencies below 300 Hz are cut.

Code:
[icecast2-0]
bitrateMode = abr # average bit rate
format = mp3 # format of the stream: ogg vorbis
quality = .5
bitrate = 16 # bitrate of the stream sent to the server
server = sources.scanamerica.us # host name of the server
port = 80 # port of the IceCast2 server, usually 8000
password = password # source password to the IceCast2 server
mountPoint = tn_henderson # mount point of this stream on the IceCast2 server
[color=red]highpass = 300[/color]
name = Lexington, TN scanner feed
description = Bearcat 147XLT - vhf/uhf dualband j-pole @ 20 feet - Ubuntu Linux 8.04.1 - DarkIce 0.19
url = http://lexscan.info
genre = Police Scanner
public = yes # advertise this stream?
 

kb8zxe

Member
Joined
Jul 6, 2004
Messages
73
Location
Wakefield, MI
Is the hum still present if you disconnect the audio cable?

I had a strange noise on my Raspberry PI and it wasn't the cable. I needed to set the USB speed and the noise went away.



Bob
 
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