38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
rawplayer is a simple C applet to stream raw music files in place of mpg123
|
|
|
|
INSTALL
|
|
|
|
compile the .c file and install:
|
|
gcc -O2 rawplayer.c -o /usr/bin/rawplayer
|
|
|
|
|
|
|
|
Converting MP3 to RAW
|
|
|
|
Make track01.mp3 into track01.raw with sox (if compiled with mp3 support).
|
|
sox -c 1 track01.mp3 -t raw -r 8000 -c 1 -s -w track01.raw
|
|
|
|
Otherwise, use whatever app to turn track01.mp3 into track01.wav then use sox on the wav.
|
|
sox -c 1 track01.wav -t raw -r 8000 -c 1 -s -w track01.raw
|
|
|
|
|
|
Once you have the raw files put them in any dir on your system (eg /var/lib/asterisk/holdmusic_raw).
|
|
and set up a class in musiconhold.conf like so:
|
|
|
|
[classes]
|
|
default => custom:/var/lib/asterisk/holdmusic_raw,/usr/bin/rawplayer
|
|
|
|
|
|
This is the most efficient way to implement moh because no cpu usage is required to
|
|
explode the very compressed mp3 data then downsample the music to the 8khz mono on the fly
|
|
instead the data is already stored on the disk in the format that asterisk needs it to be
|
|
and the player does little more than pick up frames from the file and hand them to right
|
|
to the asterisk pipe where the audio is shared into all the channels who require it.
|
|
|
|
|
|
If you have cpu to spare and want a simple mp3 solution consider the format_mp3 from
|
|
asterisk-addons and the files based moh.
|
|
|
|
|
|
|