Difference between revisions of "Xbox"

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(→‎OSSC Specific settings: Added instructions for setting up the OSSC for NTSC square pixel sampling)
(→‎Models tested)
 
(7 intermediate revisions by 2 users not shown)
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== Models ==
 
== Models ==
−
 
+
* 1.0-1.3: Conexant video encoder chip.
−
insert data
+
* 1.4: Video encoder changed to Focus.
 +
* 1.5: Supposedly identical to 1.4s.
 +
* 1.6: Video encoder changed to Xcalibur, preventing some games from running correctly in HD.
  
 
=== Models tested ===
 
=== Models tested ===
  
−
insert data
+
* 1.4 (Nov. 3, 2003 - Nov. 9, 2003)
 +
* 1.6
  
 
== [[XRGB-2]] Specific settings ==
 
== [[XRGB-2]] Specific settings ==
Line 23: Line 26:
 
No special settings are required for basic functionality.
 
No special settings are required for basic functionality.
  
−
The OSSC can however be set up to perform NTSC square pixel sampling. This is especially useful for 4x mode with 480i signals and 2x mode with 480p signals. With these settings, the sampling matches the pixel clock in games running square pixel 640x480 resolution and maintains a correct 4:3 aspect ratio also for games that run in non-square 720x480 resolution. It can also be used for 2x mode with 480i signals and passhtru mode with 480p signals if desired.
+
The OSSC can however be set up to perform NTSC square pixel sampling. When doing so, the sampling matches the pixel clock in games running at square pixel 640x480 resolution and maintains a correct 4:3 aspect ratio. The latter also applies to games that run at a non-square pixel 720x480 resolution (albeit with a 2% total horizontal crop). This setup is especially useful when using 4x mode with 480i input and 2x mode with 480p input, where the default settings may produce an incorrect aspect ratio.
 +
 
 +
It can also be used for 2x mode with 480i input and passthru mode with 480p input if desired.
 +
 
 +
The settings need to be chosen with respect to the video encoder (Conexant, Focus Enhancements, Xcalibur) used in the particular revision of the Xbox, due to differences in their video timings.
 +
 
 +
Note that compatibility with these settings can vary between displays
 +
 
 +
===NTSC/PAL square pixel settings for revision 1.4 (Focus) models===
 +
 
 +
====In Sampling opt. menu====
 +
{| class="wikitable" style="margin-auto"
 +
|-
 +
! Parameter !! Recommended setting !! Notes
 +
|-
 +
| Allow TVP HPLL2x
 +
| style="text-align: center;  | Off || ''This setting is only recommended to be enabled if the picture becomes jittery or unstable, as it can cause sampling phase to randomly shift 180° and blur the picture.''
 +
|-
 +
| Allow upsample2x
 +
| style="text-align: center;  | On/Off || ''This is optional but recommended when using 4x mode with 480i input or 2x mode with 480p input to maintain smooth edges and detail in games that use 720x480 resolution. Most likely required for interlaced signals.''
 +
|}
 +
 
 +
====In Adv. timing sub menu====
 +
{| class="wikitable" style="margin-auto"
 +
|-
 +
! rowspan="2" | Parameter
 +
! colspan="3" style="text-align: center; | Setting
 +
! rowspan="2" | Notes
 +
|-
 +
! in 480i || in 480p || in 576i
 +
|-
 +
| H. samplerate
 +
| style="text-align: center; | 762
 +
| style="text-align: center; | 762
 +
| style="text-align: center; | 768 ||
 +
|-
 +
| H. s.rate frac
 +
| style="text-align: center; | .65
 +
| style="text-align: center; | .65
 +
| style="text-align: center; | .00 || ''(480) Might need to be adjusted to higher value in order to get a picture.''
 +
|-
 +
| H. synclen
 +
| style="text-align: center; | 62
 +
| style="text-align: center; | 62
 +
| style="text-align: center; | 63 ||
 +
|-
 +
| H. backporch
 +
| style="text-align: center; | 44
 +
| style="text-align: center; | 42
 +
| style="text-align: center; | 55 || ''Might need to be adjusted up or down a step or two to center the picture.''
 +
|-
 +
| H. active
 +
| style="text-align: center; | 640
 +
| style="text-align: center; | 640
 +
| style="text-align: center; | 640 ||
 +
|-
 +
| V. synclen
 +
| style="text-align: center; | 3
 +
| style="text-align: center; | 6
 +
| style="text-align: center; | 3 ||
 +
|-
 +
| V. backporch
 +
| style="text-align: center; | 16
 +
| style="text-align: center; | 30
 +
| style="text-align: center; | 19 || ''Might need to be adjusted up or down a step or two to center the picture.''
 +
|-
 +
| V. active
 +
| style="text-align: center; | 240
 +
| style="text-align: center; | 480
 +
| style="text-align: center; | 288 ||
 +
|-
 +
| Sampling phase
 +
| style="text-align: center; | 236
 +
| style="text-align: center; | 180
 +
| style="text-align: center; | 292 || ''Might need to be adjusted if you see crosstalk/noise''
 +
|}
 +
 
 +
====In Adv. timing sub menu (Widescreen)====
 +
{| class="wikitable" style="margin-auto"
 +
|-
 +
! rowspan="2" | Parameter
 +
! colspan="3" style="text-align: center; | Setting
 +
! rowspan="2" | Notes
 +
|-
 +
! in 480i || in 480p || in 576i
 +
|-
 +
| H. samplerate
 +
| style="text-align: center; | 858
 +
| style="text-align: center; | 858
 +
| style="text-align: center; | 864 ||
 +
|-
 +
| H. s.rate frac
 +
| style="text-align: center; | .00
 +
| style="text-align: center; | .00
 +
| style="text-align: center; | .00 ||
 +
|-
 +
| H. synclen
 +
| style="text-align: center; | 62
 +
| style="text-align: center; | 62
 +
| style="text-align: center; | 63 ||
 +
|-
 +
| H. backporch
 +
| style="text-align: center; | 57
 +
| style="text-align: center; | 55
 +
| style="text-align: center; | 70 || ''Might need to be adjusted up or down a step or two to center the picture.''
 +
|-
 +
| H. active
 +
| style="text-align: center; | 720
 +
| style="text-align: center; | 720
 +
| style="text-align: center; | 720 ||
 +
|-
 +
| V. synclen
 +
| style="text-align: center; | 3
 +
| style="text-align: center; | 6
 +
| style="text-align: center; | 3 ||
 +
|-
 +
| V. backporch
 +
| style="text-align: center; | 16
 +
| style="text-align: center; | 30
 +
| style="text-align: center; | 19 || ''Might need to be adjusted up or down a step or two to center the picture.''
 +
|-
 +
| V. active
 +
| style="text-align: center; | 240
 +
| style="text-align: center; | 480
 +
| style="text-align: center; | 288 ||
 +
|-
 +
| Sampling phase
 +
| style="text-align: center; | 157
 +
| style="text-align: center; | 123
 +
| style="text-align: center; | 135 || ''Might need to be adjusted if you see crosstalk/noise''
 +
|}
 +
 
 +
When playing games in progressive scan with the above settings, disabling the '''Allow upsample2x''' option will produce sharper edges between pixels. If that option is desired, it is also necessary to disable '''Allow TVP HPLL2x''' and adjust '''Sampling phase''' to reduce bleeding between pixels.
  
−
Note that compatibility with these settings can vary between displays.
+
Note that disabling '''Allow upsample2x''' with the above settings while interlaced might lose signal from monitor/TV (If signal is still lost while this is on then '''H. s.rate frac''' needs to be higher or '''H. samplerate''' has to be 763.00).
  
−
===NSTC Square pixel settings===
+
===NTSC square pixel settings for revision 1.6 (Xcalibur) models===
  
 
====In Sampling opt. menu====
 
====In Sampling opt. menu====
 
{| class="wikitable" style="margin-auto"
 
{| class="wikitable" style="margin-auto"
 
|-
 
|-
−
! Option !! Setting !! Notes
+
! Parameter !! Recommended setting !! Notes
 +
|-
 +
| Allow TVP HPLL2x
 +
| style="text-align: center;  | Off || ''This setting is only recommended to be enabled if the picture becomes jittery or unstable, as it can cause sampling phase to randomly shift 180° and blur the picture.''
 
|-
 
|-
 
| Allow upsample2x
 
| Allow upsample2x
−
| style="text-align: center;  | On || ''This is optional but recommended to improve clarity in games that use a 720x480 resolution.''
+
| style="text-align: center;  | On || ''This is optional but recommended when using 4x mode with 480i input or 2x mode with 480p input to maintain smooth edges and detail in games that use 720x480 resolution.''
 
|}
 
|}
  
Line 41: Line 179:
 
{| class="wikitable" style="margin-auto"
 
{| class="wikitable" style="margin-auto"
 
|-
 
|-
−
! Setting !! 480i !! 480p !! Notes
+
! rowspan="2" | Parameter
 +
! colspan="2" style="text-align: center; | Setting
 +
! rowspan="2" | Notes
 +
|-
 +
! in 480i || in 480p
 
|-
 
|-
 
| H. samplerate
 
| H. samplerate
Line 76: Line 218:
 
|}
 
|}
  
 +
When playing games that have a resolution of 640x480 with the above settings, disabling the '''Allow upsample2x''' option will produce sharper edges between pixels. If that option is desired, it is also necessary to disable '''Allow TVP HPLL2x''' and adjust '''Sampling phase''' to reduce bleeding between pixels.
 +
 +
Note that disabling '''Allow upsample2x''' with the above settings will cause some loss in clarity with games that run at 720x480.
  
 
[[Category:Game Consoles]]
 
[[Category:Game Consoles]]

Latest revision as of 19:08, 20 December 2023

Models

  • 1.0-1.3: Conexant video encoder chip.
  • 1.4: Video encoder changed to Focus.
  • 1.5: Supposedly identical to 1.4s.
  • 1.6: Video encoder changed to Xcalibur, preventing some games from running correctly in HD.

Models tested

  • 1.4 (Nov. 3, 2003 - Nov. 9, 2003)
  • 1.6

XRGB-2 Specific settings

insert data

XRGB-3 Specific settings

insert data

XRGB-Mini Specific settings

insert data

OSSC Specific settings

No special settings are required for basic functionality.

The OSSC can however be set up to perform NTSC square pixel sampling. When doing so, the sampling matches the pixel clock in games running at square pixel 640x480 resolution and maintains a correct 4:3 aspect ratio. The latter also applies to games that run at a non-square pixel 720x480 resolution (albeit with a 2% total horizontal crop). This setup is especially useful when using 4x mode with 480i input and 2x mode with 480p input, where the default settings may produce an incorrect aspect ratio.

It can also be used for 2x mode with 480i input and passthru mode with 480p input if desired.

The settings need to be chosen with respect to the video encoder (Conexant, Focus Enhancements, Xcalibur) used in the particular revision of the Xbox, due to differences in their video timings.

Note that compatibility with these settings can vary between displays

NTSC/PAL square pixel settings for revision 1.4 (Focus) models

In Sampling opt. menu

Parameter Recommended setting Notes
Allow TVP HPLL2x Off This setting is only recommended to be enabled if the picture becomes jittery or unstable, as it can cause sampling phase to randomly shift 180° and blur the picture.
Allow upsample2x On/Off This is optional but recommended when using 4x mode with 480i input or 2x mode with 480p input to maintain smooth edges and detail in games that use 720x480 resolution. Most likely required for interlaced signals.

In Adv. timing sub menu

Parameter Setting Notes
in 480i in 480p in 576i
H. samplerate 762 762 768
H. s.rate frac .65 .65 .00 (480) Might need to be adjusted to higher value in order to get a picture.
H. synclen 62 62 63
H. backporch 44 42 55 Might need to be adjusted up or down a step or two to center the picture.
H. active 640 640 640
V. synclen 3 6 3
V. backporch 16 30 19 Might need to be adjusted up or down a step or two to center the picture.
V. active 240 480 288
Sampling phase 236 180 292 Might need to be adjusted if you see crosstalk/noise

In Adv. timing sub menu (Widescreen)

Parameter Setting Notes
in 480i in 480p in 576i
H. samplerate 858 858 864
H. s.rate frac .00 .00 .00
H. synclen 62 62 63
H. backporch 57 55 70 Might need to be adjusted up or down a step or two to center the picture.
H. active 720 720 720
V. synclen 3 6 3
V. backporch 16 30 19 Might need to be adjusted up or down a step or two to center the picture.
V. active 240 480 288
Sampling phase 157 123 135 Might need to be adjusted if you see crosstalk/noise

When playing games in progressive scan with the above settings, disabling the Allow upsample2x option will produce sharper edges between pixels. If that option is desired, it is also necessary to disable Allow TVP HPLL2x and adjust Sampling phase to reduce bleeding between pixels.

Note that disabling Allow upsample2x with the above settings while interlaced might lose signal from monitor/TV (If signal is still lost while this is on then H. s.rate frac needs to be higher or H. samplerate has to be 763.00).

NTSC square pixel settings for revision 1.6 (Xcalibur) models

In Sampling opt. menu

Parameter Recommended setting Notes
Allow TVP HPLL2x Off This setting is only recommended to be enabled if the picture becomes jittery or unstable, as it can cause sampling phase to randomly shift 180° and blur the picture.
Allow upsample2x On This is optional but recommended when using 4x mode with 480i input or 2x mode with 480p input to maintain smooth edges and detail in games that use 720x480 resolution.

In Adv. timing sub menu

Parameter Setting Notes
in 480i in 480p
H. samplerate 780 780
H. s.rate frac .00 .00
H. synclen 58 58
H. backporch 60 60 Might need to be adjusted up or down a step or two to center the picture.
H. active 640 640
V. synclen 3 6
V. backporch 16 32 Might need to be adjusted up or down a step or two to center the picture.
V. active 240 480

When playing games that have a resolution of 640x480 with the above settings, disabling the Allow upsample2x option will produce sharper edges between pixels. If that option is desired, it is also necessary to disable Allow TVP HPLL2x and adjust Sampling phase to reduce bleeding between pixels.

Note that disabling Allow upsample2x with the above settings will cause some loss in clarity with games that run at 720x480.

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