Bit Rate Calculation - Revision history

StefanG at 11:55, 7 June 2013

2013-06-07T11:55:12Z

← Older revision		Revision as of 11:55, 7 June 2013
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	For MPEG1/2 Layer3 (MP3) bit rate		For MPEG1/2 Layer3 (MP3) bit rate

	the following Encoding range is supported as Variable Bit Rate in IPAM100 based devices:		the following Encoding range is supported as Constant & Variable Bit Rate in IPAM102 based devices (e.g. new Instreamer):

			28kbps (MPEG2@16KHz mono) - 320kbps (MPEG1@48KHz stereo)<br>


			the following Encoding range is supported as Variable Bit Rate in IPAM100 based devices (e.g. old Instreamer100):

			28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)<br>

	~~28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)~~

	Decoding range on both IPAM100 and IPAM300 as Constant or Variable Bit Rate is:		Decoding range on both IPAM100 and IPAM300 as Constant or Variable Bit Rate is:

	8kbps (MPEG2) - 320kbps (MPEG1)		8kbps (MPEG2) - 320kbps (MPEG1)



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	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (MP3 in VBR)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>
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	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (MP3 in VBR)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>
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	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (VBR)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>
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	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (VBR)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>

Domenico at 14:02, 16 November 2010

2010-11-16T14:02:13Z

← Older revision		Revision as of 14:02, 16 November 2010
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	Decoding range on both IPAM100 and IPAM300 as Constant or Variable Bit Rate is:		Decoding range on both IPAM100 and IPAM300 as Constant or Variable Bit Rate is:

	8kbps (MPEG2~~@16KHz mono~~) - 320kbps (MPEG1~~@48KHz stereo~~)		8kbps (MPEG2) - 320kbps (MPEG1)

Domenico at 14:00, 16 November 2010

2010-11-16T14:00:19Z

← Older revision		Revision as of 14:00, 16 November 2010
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	The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/Instreamer_Standard_Firmware/1981/])		The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/Instreamer_Standard_Firmware/1981/])

	For MPEG1/2 Layer3 (MP3) the following ~~encoding~~ range is supported as Variable Bit Rate in IPAM100 based devices:		For MPEG1/2 Layer3 (MP3) bit rate

			the following Encoding range is supported as Variable Bit Rate in IPAM100 based devices:

	28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)		28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)

	Decoding range on both IPAM100 and IPAM300 is:		Decoding range on both IPAM100 and IPAM300 as Constant or Variable Bit Rate is:

	8kbps (MPEG2@16KHz mono) - 320kbps (MPEG1@48KHz stereo)		8kbps (MPEG2@16KHz mono) - 320kbps (MPEG1@48KHz stereo)

Domenico at 13:58, 16 November 2010

2010-11-16T13:58:19Z

← Older revision		Revision as of 13:58, 16 November 2010
Line 35:		Line 35:
	The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/Instreamer_Standard_Firmware/1981/])		The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/Instreamer_Standard_Firmware/1981/])

	For MPEG1/2 Layer3 (MP3) the following range is supported as Variable Bit Rate in IPAM100 based devices:		For MPEG1/2 Layer3 (MP3) the following encoding range is supported as Variable Bit Rate in IPAM100 based devices:

	28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)		28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)

			Decoding range on both IPAM100 and IPAM300 is:

			8kbps (MPEG2@16KHz mono) - 320kbps (MPEG1@48KHz stereo)

Domenico at 13:51, 16 November 2010

2010-11-16T13:51:04Z

← Older revision		Revision as of 13:51, 16 November 2010
Line 36:		Line 36:

	For MPEG1/2 Layer3 (MP3) the following range is supported as Variable Bit Rate in IPAM100 based devices:		For MPEG1/2 Layer3 (MP3) the following range is supported as Variable Bit Rate in IPAM100 based devices:

	28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)		28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)


	'''Overhead/sec = Overhead/Packet x Packet/sec'''		'''Overhead/sec = Overhead/Packet x Packet/sec'''

Domenico at 13:50, 16 November 2010

2010-11-16T13:50:41Z

← Older revision		Revision as of 13:50, 16 November 2010
Line 33:		Line 33:


	The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/~~file~~/~~Instreamer_Firmware_User_Manual_V310_PDF~~/~~7471/81~~])		The values of Audio Data for audio format, sampling frequency and quality (MP3 bitrate average), come from Instreamer Manual (firmware V3.10 – page 18 - [http://www.barix.com/downloads/Instreamer_Standard_Firmware/1981/])

			For MPEG1/2 Layer3 (MP3) the following range is supported as Variable Bit Rate in IPAM100 based devices:
			28kbps (MPEG2@16KHz mono) - 192kbps (MPEG1@48KHz stereo)

	'''Overhead/sec = Overhead/Packet x Packet/sec'''		'''Overhead/sec = Overhead/Packet x Packet/sec'''

Giacomo at 10:13, 24 March 2009

2009-03-24T10:13:54Z

← Older revision		Revision as of 10:13, 24 March 2009
Line 533:		Line 533:

	\|}		\|}
	<sup>''1 - in PCM and A/~~ULaw~~ streaming mode, there is not MPA wrapper.''</sup>		<sup>''1 - in PCM and A/uLaw streaming mode, there is not MPA wrapper.''</sup>

	<sup>''2 - 1 Mbit = 1000 Kbit.''</sup>		<sup>''2 - 1 Mbit = 1000 Kbit.''</sup>
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	\|}		\|}
	<sup>''1 - in PCM and A/~~ULaw~~ streaming mode, there is not MPA wrapper.''</sup>		<sup>''1 - in PCM and A/uLaw streaming mode, there is not MPA wrapper.''</sup>

	<sup>''2 - 1 Mbit = 1000 Kbit.''</sup>		<sup>''2 - 1 Mbit = 1000 Kbit.''</sup>

Giacomo at 10:12, 24 March 2009

2009-03-24T10:12:17Z

← Older revision		Revision as of 10:12, 24 March 2009
Line 393:		Line 393:

	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (STL)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>
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	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
	\| <center>'''Audio Format'''</center>		\| <center>'''Audio Format (STL)'''</center>
	\| <center>'''Audio Data Rate (Kbit/sec)'''</center>		\| <center>'''Audio Data Rate (Kbit/sec)'''</center>
	\| <center>'''Packet/sec (Wireshark)'''</center>		\| <center>'''Packet/sec (Wireshark)'''</center>

Giacomo at 10:10, 24 March 2009

2009-03-24T10:10:54Z

← Older revision		Revision as of 10:10, 24 March 2009
Line 40:		Line 40:
	'''Total Bit Rate (Kbit/sec) = Audio Data Rate (Kbit/sec) + Overhead/sec (Kbit/sec)'''		'''Total Bit Rate (Kbit/sec) = Audio Data Rate (Kbit/sec) + Overhead/sec (Kbit/sec)'''

	<sup>''(1 Kbit = 1000 bit)''</sup>		<sup>''(1 Kbit = 1000 bit)''</sup>


	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"
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	'''Total Bit Rate (Kbit/sec) = Audio Data Rate (Kbit/sec) + Overhead/sec (Kbit/sec)'''		'''Total Bit Rate (Kbit/sec) = Audio Data Rate (Kbit/sec) + Overhead/sec (Kbit/sec)'''

	<sup>''(1 Kbit = 1000 bit)''</sup>		<sup>''(1 Kbit = 1000 bit)''</sup>


	{\| class="wikitable" border="1" cellspacing="0"		{\| class="wikitable" border="1" cellspacing="0"

Giacomo at 10:10, 24 March 2009

2009-03-24T10:10:04Z

← Older revision		Revision as of 10:10, 24 March 2009
Line 765:		Line 765:

	The PDF version of the original document is downloadable here [[[[media:bit_rate_calculation_3_0.pdf]]]].		The PDF version of the original document is downloadable here [[[[media:bit_rate_calculation_3_0.pdf]]]].


	Back to [[FAQ]]		Back to [[FAQ]]