Codec - Revision history

Horemu at 12:18, 25 April 2011

2011-04-25T12:18:19Z

2008-12-16T10:04:42Z

‎G.729

2008-12-16T10:03:56Z

‎G.723

2008-12-16T10:03:25Z

‎G.723

2008-12-16T10:00:02Z

‎G.711

2007-08-31T13:25:15Z

2006-11-14T14:08:12Z

‎G.722

2006-09-17T19:05:41Z

2006-09-17T18:58:45Z

‎See also / Siehe auch

2006-09-17T11:36:19Z

← Older revision		Revision as of 12:18, 25 April 2011
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−	~~<div class="breadcrumb">~~	+	{{Breadcrumb\|0\|0\|Glossary}}
−	{{up}} ~~[[Glossary]]~~
−	~~</div>~~

	'''Codec''' = '''Co'''mpression/'''dec'''ompression		'''Codec''' = '''Co'''mpression/'''dec'''ompression

@@ Line 34: / Line 34: @@
 === G.723 ===
-Max. 40 kbit/s .
+Max. bit rate of 40 kbit/s.
 === G.729 ===

← Older revision		Revision as of 10:00, 16 December 2008
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	=== G.711 ===		=== G.711 ===
		+
		+	G.711 is the codec used by [[ISDN]] an [[VoIP]]. The sampling rate is 64 kbit/s.

	If the country code is set to '''US''' the audio codec G.711 ulaw is preferred.		If the country code is set to '''US''' the audio codec G.711 ulaw is preferred.

@@ Line 2: / Line 2: @@
 {{up}} [[Glossary]]
 </div>
-==G.711==
+'''Codec''' = '''Co'''mpression/'''dec'''ompression
 If the country code is set to '''US''' the audio codec G.711 ulaw is preferred.
 All other country codes causes the audio codec G.711 alaw to be preferred.
-==G.722==
+=== G.722 ===
 The ITU-T G.722 recommendation specifies speech compression and decompression at rates of 48, 56 or 64 kbps based on Sub-Band Adaptive Differential Pulse Code Modulation (SB-ADPCM).
@@ Line 21: / Line 26: @@
 The G.722 audio codec is used with many applications that require audio frequency bandwidth coding such as video conferencing, speech storing, multimedia, and speaker/microphone digital telephony.
-* Coding Rates  : 48, 56 or 64 kbps
+* Coding Rates: 48, 56 or 64 kbps
-* Sampling Rate : 16 kHz
+* Sampling Rate: 16 kHz
-* Delay         : 125 microseconds
+* Delay: 125 microseconds
-==G.723==
+=== G.723 ===
 ==  See also / Siehe auch ==
 * {{wp|en|List of codecs}}
 [[Category:Definition]]

← Older revision		Revision as of 14:08, 14 November 2006
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	==G.722==		==G.722==
		+
		+	The ITU-T G.722 recommendation specifies speech compression and decompression at rates of 48, 56 or 64 kbps based on Sub-Band Adaptive Differential Pulse Code Modulation (SB-ADPCM).
		+
		+	In the SB-ADPCM technique used, the frequency band is split into two sub-bands (higher and lower)
		+	and the signals in each sub-band are encoded using ADPCM.
		+
		+	The G.722 SB-ADPCM audio coder encodes 14 bit and 16 kHz sampled audio signals for transmission over 48, 56 or 64 kbps channels, and provides 7 kHz of audio bandwidth (Wideband audio).
		+	The G.722 decoder performs the reverse operation to the encoder.
		+
		+	The G.722 audio codec is used with many applications that require audio frequency bandwidth coding such as video conferencing, speech storing, multimedia, and speaker/microphone digital telephony.
		+
		+	* Coding Rates : 48, 56 or 64 kbps
		+	* Sampling Rate : 16 kHz
		+	* Delay : 125 microseconds
		+
	==G.723==		==G.723==

← Older revision	Revision as of 19:05, 17 September 2006
(No difference)