howto/multicast.md
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@@ -110,16 +110,16 @@ Feel free to ask for a peering and set it up!
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### NOP music stream
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-cs broadcasts a 48 kHz, 16-bit music stream. An SDP file is required to receive it:
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+cs broadcasts a 48 kHz, 24-bit music stream. An SDP file is required to receive it:
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```
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v=0
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o=- 0 0 IN IP4 172.23.199.110
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s=-
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-i=NOP 48 kHz 16-bit music stream
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+i=NOP 48 kHz 24-bit music stream
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e=dn42@nop.hu
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c=IN IP4 232.2.3.2
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m=audio 1234 RTP/AVP 96
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-a=rtpmap:96 L16/48000/2
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+a=rtpmap:96 L24/48000/2
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a=recvonly
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a=type:broadcast
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a=source-filter: incl IN IP4 232.2.3.2 172.23.199.110
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@@ -128,17 +128,17 @@ a=source-filter: incl IN IP4 232.2.3.2 172.23.199.110
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v=0
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o=- 0 0 IN IP6 fd40:cc1e:c0de::fffe
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s=-
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-i=NOP 48 kHz 16-bit music stream
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+i=NOP 48 kHz 24-bit music stream
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e=dn42@nop.hu
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c=IN IP6 ff3e::8232:232
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m=audio 1234 RTP/AVP 96
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-a=rtpmap:96 L16/48000/2
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+a=rtpmap:96 L24/48000/2
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a=recvonly
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a=type:broadcast
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a=source-filter: incl IN IP6 ff3e::8232:232 fd40:cc1e:c0de::fffe
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```
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-also there is low bandwidth sap/sdp announcements of the format (sometimes 96k-24b, sometimes 48k-16b or 192k-32b ect) to 172.23.199.110,232.2.3.1:9875 that needs altering in terms of addresses embedded within, however vlc can pick it up
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+also there is low bandwidth sap/sdp announcements of the format (samplerate could be 44.1khz, 48khz, 96khz 192khz or 384khz, bitdepts also change from 16bit, 24bit or 32bit, MSB) to 172.23.199.110,232.2.3.1:9875 that needs altering in terms of addresses embedded within, however vlc can pick it up
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The stream can then be streamed with `ffplay -protocol_whitelist file,fd,udp,rtp -fflags +genpts /path/to/sdp_file` or mplayer or vlc.
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