Asterisk Siren 7 Codec

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Asterisk ships with a number of standard codecs, and Sangoma offers additional codec modules in binary form. Use the module selector to find the right version for your Asterisk system. G.729 Codec Siren 7 Codec.

CODEC modules have file names that look like codec_xxxxx.so, such as codec_alaw.so and codec_ulaw.so.

CODECs represent mathematical algorithms for encoding (compressing) and decoding (decompression) media streams. Install checkpoint gaia virtualbox usb. Asterisk uses CODEC modules to both send and recieve media (audio and video). Asterisk also uses CODEC modules to convert (or transcode) media streams between different formats.

Asterisk is provided with CODEC modules for the following media types:

  • ADPCM, 32kbit/s
  • G.711 A-law, 64kbit/s
  • G.711 µ-law, 64kbit/s
  • G.722, 64kbit/s
  • G.726, 32kbit/s
  • GSM, 13kbit/s
  • LPC-10, 2.4kbit/s

The Asterisk core provides capability for 16 bit Signed Linear PCM, which is what all of the CODECs are encoding from or decoding to. There is another CODEC module, codec_resample which allows re-sampling of Signed Linear into different sampling rates 12,16,24,32,44,48,96 or 192 kHz to aid translation.

Various other CODEC modules will be built and installed if their dependencies are detected during Asterisk compilation.

  • If the DAHDI drivers are detected then codec_dahdi will installed.
  • If the Speex (www.speex.org) development libraries are detected, codec_speex will also be installed.
  • If the iLBC (www.ilbcfreeware.org) development libraries are detected, codec_ilbc will also be installed.

Support for the patent-encumbered G.729A or G.723.1 CODECs is provided by Digium on a commercial basis through software (G.729A) or hardware (G.729A and G.723.1) products. For more information about purchasing licenses or hardware to use the G.729A or G.723.1 CODECs with Asterisk, please see Digium's website.

Support for Polycom's patent-encumbered but free G.722.1 Siren7 and G.722.1C Siren14 CODECs, or for Skype's SILK CODEC, can be enabled in Asterisk by downloading the binary CODEC modules from Digium's website.

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On the Asterisk Command Line Interface, use the command 'core show translation' to show the translation times between all registered audio formats.

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PostPosted: Sun Jan 25, 2015 1:34 am

Joined: Sun Jan 25, 2015 1:31 am
Posts: 8
Has anyone worked with this before and decoded it? Tales of Zestiria uses it for most of the music.


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PostPosted: Sun Jan 25, 2015 5:02 am

Joined: Sat Dec 13, 2014 1:01 am
Posts: 161
I'll already go and ask for a sample; that's pretty much mandatory around here.
By the way, are you a member of the HCS forum? Just curious, I think I recognise your username.


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PostPosted: Sun Jan 25, 2015 7:53 am

Joined: Sun Jan 25, 2015 1:31 am
Posts: 8
Yes, I am. And this topic can be closed, since kode54 actually added vgmstream support tonight. It needed the G.719 libraries.


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PostPosted: Thu Oct 27, 2016 5:54 am

Joined: Thu Oct 27, 2016 5:49 am
Posts: 1
Hi,
Can vgmstream decode siren 22? I understand that G.719 codec is not the same as siren 22.


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