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update README.md

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Introduce opus codec and adopt new default values for chunk duration
and sample rate.
This commit is contained in:
Hannes Ellinger 2015-06-14 12:08:52 +02:00
parent 4fda33a20e
commit aa7cb58146
1 changed files with 11 additions and 10 deletions
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README.md
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@ -8,10 +8,11 @@ The server's audio input is a named pipe `/tmp/snapfifo`. All data that is fed i
How does is work
----------------
The snapserver reads PCM chunks of 50ms duration from the pipe `/tmp/snapfifo`. The chunk is encoded and tagged with the local time
The snapserver reads PCM chunks of 10ms duration from the pipe `/tmp/snapfifo`. The chunk is encoded and tagged with the local time
* PCM: lossless uncompressed
* FLAC: lossless compressed [default]
* Vorbis: lossy compression
* Opus: lossy low-latency compression
The encoded chunk is sent via a TCP connection to the snapclients.
Each client does continuos time synchronization with the server, so that the client is always aware of the local server time.
@ -65,20 +66,20 @@ Disable alsa audio output by commenting out this section:
# type "alsa"
# name "My ALSA Device"
# device "hw:0,0" # optional
# format "44100:16:2" # optional
# format "48000:16:2" # optional
# mixer_device "default" # optional
# mixer_control "PCM" # optional
# mixer_index "0" # optional
#}
Add a new audio output of the type "fifo", which will let mpd play audio into the named pipe `/tmp/snapfifo`.
Make sure that the "format" setting is the same as the format setting of the snapserver (default is "44100:16:2", which should make resampling unnecessary in most cases)
Make sure that the "format" setting is the same as the format setting of the snapserver (default is "48000:16:2", which should make resampling unnecessary in most cases)
audio_output {
type "fifo"
name "my pipe"
path "/tmp/snapfifo"
format "44100:16:2"
format "48000:16:2"
mixer_type "software"
}