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Questions[codecs](server)

Martin Hope
ZZ Wave
Asked: 2022-04-09 08:39:05 +0800 CST
  • 0

When building Asterisk, there is two different entities related to audio formats - formats and codecs. What's difference?

For example, I need a support only for alaw+ulaw+g.729 on voice traffic itself, and only plain wav + mp3 for announces and other sounds played to subscribers. What modules should I enable?

Thanks.

asterisk codecs
Martin Hope
Muh Fugen
Asked: 2017-02-03 17:46:14 +0800 CST
  • 2

I have a Windows Server 2016 Remote Desktop Services Session Host with the Server Media Foundation feature and Firefox installed. When users try to watch YouTube videos they are unable to do so because it reports a H264 codec is not installed. What features are required for Firefox to be able to decode H264 video?

enter image description here

windows-server-2016 codecs h.264
Martin Hope
markhorrocks
Asked: 2016-10-21 06:38:14 +0800 CST
  • 0

I have setup an Asterisk server (14.0.2) on Ubuntu 14.04. I can get sound from Twilio using ulaw and from Zoiper (no STUN or ICE). In each case the asterisk server plays gsm files.

I can't get any sound from either Linphone or Blink software phones although both register fine. These are installed on an Ubuntu 16.04 laptop (Dell Inspiron-13-7359). I have enabled every codec available on the phones and tried all available audio device settings for my laptop. Any help would be appreciated.

Here is my Asterisk PJSIP config.

[transport-udp-nat]
type = transport
protocol = udp
bind = 0.0.0.0
; NAT settings
local_net = 10.0.0.0/8
external_media_address = 12.345.67.254
external_signaling_address = 12.345.67.254
[endpoint-internal](!)
type = endpoint
transport = transport-udp-nat
context = Local
disallow=all
allow=ulaw
allow=alaw
allow=slin
allow=g729
allow=g722
allow=opus
allow=gsm
direct_media = no
trust_id_outbound = yes
device_state_busy_at = 1
dtmf_mode = rfc4733

Here is core show codecs in asterisk (redacted)

       3 audio alaw         alaw             (G.711 a-law)
      19 audio speex        speex            (SpeeX)
      20 audio speex        speex16          (SpeeX 16khz)
      21 audio speex        speex32          (SpeeX 32khz)
      23 audio g722         g722             (G722)
      18 audio g729         g729             (G.729A)
       8 audio slin         slin             (16 bit Signed Linear PCM)
       9 audio slin         slin12           (16 bit Signed Linear PCM (12kHz))
      10 audio slin         slin16           (16 bit Signed Linear PCM (16kHz))
      11 audio slin         slin24           (16 bit Signed Linear PCM (24kHz))
      12 audio slin         slin32           (16 bit Signed Linear PCM (32kHz))
      13 audio slin         slin44           (16 bit Signed Linear PCM (44kHz))
      14 audio slin         slin48           (16 bit Signed Linear PCM (48kHz))
      15 audio slin         slin96           (16 bit Signed Linear PCM (96kHz))
      16 audio slin         slin192          (16 bit Signed Linear PCM (192kHz))
       2 audio ulaw         ulaw             (G.711 u-law)
       4 audio gsm          gsm              (GSM)
redundancy)
  28 audio opus         opus             (Opus Codec)
ubuntu asterisk sip codecs
Martin Hope
testguy
Asked: 2010-06-09 12:44:01 +0800 CST
  • 2

We have a teacher that has a project for doing some basic film editing with windows movie maker. We loaded the avi file onto the computer and Windows is trying to install a codec but can't. I assume I need to install some type of codec pack. I'm looking for suggestions on a codec pack that I can easily deploy through a Win2003 server to WinXP clients.

Ideally, this codec pack shouldn't break anything else and be easily removed if need be.

windows video groups codecs