Odtnhj

Running Icecast 2.4.99.2 on Ubuntu 16.04 just file and would like to add an intro file. With a working source mounted from Darkice default audio card input, when I add the <intro> tag to the Icecast configuration file for the mount, it plays but nothing follows.

<mount>
 <mount-name>/archive</mount-name>
 <max-listeners>5</max-listeners>
 <fallback-mount>/high_quality.mp3</fallback-mount>
 <intro>/high_quality.mp3</intro>
 <fallback-override>1</fallback-override>
 <hidden>0</hidden>
</mount>

File permissions for mp3 file:

user@stream:~/StationIDs$ sudo ls -lah /usr/share/icecast2/web/high_quality.mp3
-rwxr--r-- 1 root root 138K Nov 14 17:20 /usr/share/icecast2/web/high_quality.mp3

I have read the format needs to match, so I have darckice.cfg using 128kps bitrate using lame to encode from wav format.

user@stream:~/StationIDs$ mediainfo high_quality.mp3
General
Complete name : high_quality.mp3
Format : MPEG Audio
File size : 138 KiB
Duration : 8s 777ms
Overall bit rate mode : Constant
Overall bit rate : 128 Kbps
Writing library : LAME3.99r

Audio
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Duration : 8s 803ms
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 1 channel
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 137 KiB (100%)
Writing library : LAME3.99r
Encoding settings : -m m -V 4 -q 3 -lowpass 20.5 -b 128

And from darkice.cfg...

[icecast2-1]
format = mp3
bitrateMode = cbr
bitrate = 128
quality = 0.9
server = localhost
mountPoint = archive
port = 8000
password = changeme
name = Archiver Stream
description = Dedicated archiving stream
url = archive
genre = Eclectic
public = no

With this config, the intro file plays okay with nothing else and the source stream plays without an intro file. Have a missed something?

Well, of course, I answered my own question after writing this and resolved. I spotted the 1 channel in the file format. I had to use sox to convert the original wav file to 2 channel, then use lame again to convert to mp3...

user@stream:~/StationIDs$ sox high_quality.wav -c 2 high_quality-2.wav
user@stream:~/StationIDs$ lame -b 128 -F high_quality-2.wav high_quality.mp3