1080i resolution question

MichaelD

Lifer
Jan 16, 2001
31,528
3
76
I understand that in order to get 1080i resolution, you must have the output device (HD cable/Bluray/whatever AND your display must be capable of it. Got that.

Inbetween your sources and your display you have an AV RECEVIER. It does the switching b/t components. Got that.

Does the receiver specifically have to say "Supports 1080i" or words to that effect? Or does any HDMI-capable receiver have the ability to handle whatever bandwith is thrown it's way?

Thanks.
 

biggestmuff

Diamond Member
Mar 20, 2001
8,201
2
0
The receiver's specs should define what the pass through bandwidth is. What model receiver are you looking at?
 

KLin

Lifer
Feb 29, 2000
30,194
553
126
Originally posted by: MichaelD
I understand that in order to get 1080i resolution, you must have the output device (HD cable/Bluray/whatever AND your display must be capable of it. Got that.

Inbetween your sources and your display you have an AV RECEVIER. It does the switching b/t components. Got that.

Does the receiver specifically have to say "Supports 1080i" or words to that effect? Or does any HDMI-capable receiver have the ability to handle whatever bandwith is thrown it's way?

Thanks.

If the AV receiver has HDMI switching, then it supports the different HDTV resolutions.
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
Video Section
? Input (Sensitivity/Impedance)
DVR/VCR, DVD/LD, TV/SAT................ 1 Vp-p/75 O
? Output (Level/Impedance)
DVR/VCR, MONITOR OUT.................. 1 Vp-p/75 O
? Frequency response
DVR/VCR, DVD/LD,
TV/SAT ? MONITOR. . . . . . 5 Hz to 7 MHz dB
Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . 55 dB
Crosstalk. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB
Component video section
? Input (Sensitivity)
DVD/LD, TV/SAT, DVR/VCR................ 1 Vp-p/75 O
? Output (Level/Impedance)
MONITOR OUT.................................... 1 Vp-p/75 O
? Frequency response
DVD/LD, TV/SAT,
DVR/VCR ? MONITOR...... 5 Hz to 40 MHz dB
Signal-to-Noise Ratio.................................... 60 dB

that is from the Owner's Manual
he still hasn't proven ownership, yet
 

MichaelD

Lifer
Jan 16, 2001
31,528
3
76
Originally posted by: IcebergSlim
I thought we had an audio video forum.......hmmmm....I wonder where it could be.

:Q Oh crap...I forgot! I'm guilty of the worst AT Sin there is: WRONG FORUM! :eek:

My bad.
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
page 58
About HDMI
HDMI (High Definition Multimedia Interface)
supports both video and audio on a single
digital connection for use with DVD players,
DTV, set-top boxes, and other AV devices. HDMI
was developed to provide the technologies of
High Bandwidth Digital Content Protection
(HDCP) as well as Digital Visual Interface (DVI)
in one specification. HDCP is used to protect
digital content transmitted and received by DVIcompliant
displays.
HDMI has the capability to support standard,
enhanced, or high-definition video plus
standard to multi-channel surround-sound
audio. HDMI features include uncompressed
digital video, a bandwidth of up to 2.2 gigabytes
per second (with HDTV signals), one connector
(instead of several cables and connectors), and
communication between the AV source and AV
devices such as DTVs.
HDMI, the logo and High-Definition
Multimedia Interface are trademarks or
registered trademarks of HDMI licensing LLC.
 

MichaelD

Lifer
Jan 16, 2001
31,528
3
76
Originally posted by: FoBoT
page 58
About HDMI
HDMI (High Definition Multimedia Interface)
supports both video and audio on a single
digital connection for use with DVD players,
DTV, set-top boxes, and other AV devices. HDMI
was developed to provide the technologies of
High Bandwidth Digital Content Protection
(HDCP) as well as Digital Visual Interface (DVI)
in one specification. HDCP is used to protect
digital content transmitted and received by DVIcompliant
displays.
HDMI has the capability to support standard,
enhanced, or high-definition video plus
standard to multi-channel surround-sound
audio. HDMI features include uncompressed
digital video, a bandwidth of up to 2.2 gigabytes
per second (with HDTV signals), one connector
(instead of several cables and connectors), and
communication between the AV source and AV
devices such as DTVs.
HDMI, the logo and High-Definition
Multimedia Interface are trademarks or
registered trademarks of HDMI licensing LLC.


Thanks; I did see that. OK, so it's got 2.2GB/s bandwith...is that 1080i? I obviously don't have a profound knowledge of HD video.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: Imp
Wow. This whole time I thought all you needed were the right input types for video.

There's also the question of bandwidth. Many receivers don't have the bandwidth needed to fully display/switch HD so there is a loss of detail.
 

tank171

Member
May 27, 2007
93
0
0
Originally posted by: MichaelD
Originally posted by: FoBoT
page 58
About HDMI
HDMI (High Definition Multimedia Interface)
supports both video and audio on a single
digital connection for use with DVD players,
DTV, set-top boxes, and other AV devices. HDMI
was developed to provide the technologies of
High Bandwidth Digital Content Protection
(HDCP) as well as Digital Visual Interface (DVI)
in one specification. HDCP is used to protect
digital content transmitted and received by DVIcompliant
displays.
HDMI has the capability to support standard,
enhanced, or high-definition video plus
standard to multi-channel surround-sound
audio. HDMI features include uncompressed
digital video, a bandwidth of up to 2.2 gigabytes
per second (with HDTV signals), one connector
(instead of several cables and connectors), and
communication between the AV source and AV
devices such as DTVs.
HDMI, the logo and High-Definition
Multimedia Interface are trademarks or
registered trademarks of HDMI licensing LLC.


Thanks; I did see that. OK, so it's got 2.2GB/s bandwith...is that 1080i? I obviously don't have a profound knowledge of HD video.


Just think about it for a sec. A Blu-Ray disc has a good 50GB of space (approximately). Divide that by 2.2 and you get nearly 23. So this bandwidth would be able to play a Blu-Ray disc in a good 23 seconds. I think it should be able to easily handle 1080i. Idk how much bandwidth 1080i needs, but it couldnt be more than that...
 

randym431

Golden Member
Jun 4, 2003
1,270
1
0
Something I've wondered about. On a set that does 720p / 1080i, does hdmi vs rgb component connection really make a diff? Wouldnt or shouldnt rgb give the same picture as hdmi if the set only does 1080i, not 1080p?

ps. And upconverted from 720p to 1080i at that.

pss. And if a set upconverts from 720p to 1080i, should the hd dvd player be set to output 720p or 1080i?