In general, the same difference as between VHS and SVHS: slightly higher
FM center frequencies for the Y and C video components, resulting in higher
specifications for horizontal resolution (about the same as SVHS). Do not
confuse the term "Beta" meaning "BetaMax", which is a consumer system
generally comparable (or slightly superior) to VHS, with the term "Beta"
meaning "Betacam" which is a broadcast system vastly superior to both VHS
and BetaMax and x10 to x100 in cost. A lot of people in the video/tv
business say "Beta" and mean "Betacam" which can get you into a lot of
trouble if you're buying equipment or services.
Betacam equipment uses tape cassettes mechanically based on BetaMax
cassettes (with additional notches and holes). But the recorded signal
format has nothing to do with BetaMax...Y and C are recorded by separate
heads on separate tracks, for one thing. They are completely incompatible.
Paul Weber
Albuquerque, NM
we...@aol.com
webpa
The SuperBeta offers a bit higher resolution. If a SuperBeta tape is
played on the plain Beta machine there is usually some noise in the
picture. The blank tapes are identical.
--
Team OS/2
FIx ADDRESs To REPLy.
-Jay Truesdale
dz-...@emrl.com
>WEBPA wrote:
>
>> >Does anyone know the differect between Super Beta and Beta?
>
>> In general, the same difference as between VHS and SVHS: slightly higher
>> FM center frequencies for the Y and C video components, resulting in higher
>> specifications for horizontal resolution (about the same as SVHS)...
>
>Not quite accurate; SVHS jumps up the luminance carrier frequency by
>quit a bit more than does SuperBeta, resulting in a 100 line (more or
>less) resolution advantage for SVHS when compared with SuperBeta.
>
>Tom Desmond w...@msg.ti.com or tdes...@ti.com or tdes...@sprynet.com
>"Opinions expressed are mine, and may not reflect those of RTIS"
--
-----
Experimental Media Research Laboratory, Northern California
For more Information, http://emrl.com or email IN...@EMRL.COM.
No, SuperBeta was definitely more than that. SuperBeta moved the video
carrier frequency upward in frequency by a total of 800 kHz compared to
the original Beta spec (in comparison, SVHS features a 2+ MHz increase),
giving an increase in resolution from 240 lines to about 270 or 280.
Part of the additional bandwidth was sucked up by the Hi Fi audio
signals, but the result was still slightly higher resolution. In
comparison, HQ consisted of nothing more than some noise reduction
circuitry and a change in the VHS clipping standard for slightly crisper
edges. HQ left the resolution spec mired at 240 lines, same as always.
No where near the resolution of S-VHS, unless you are talking about PAL
SuperBeta.
Standard betamax gets about 240 lines in B II/III and 250 lines in B I.
Super beata gets about 285 lines in B II/III and about 10 or 20 more
lines in BIs. Super hi-band (B Ishb) gets about 330 lines and ED beta
gets about 500 lines. In comparison VHS gets about 240 lines in any
speed, and SVHS gets about 400 lines. All beta formats (except betacam)
record the same chroma resolution which is a bit higher than the
VHS/SVHS chroma resolution. VHS HQ makes virtually no difference in the
picture qualiy.
--
Andy Cuffe
balt...@psu.edu
>In article <34059C...@msg.ti.com>, w...@msg.ti.com says...
>>
>>WEBPA wrote:
>>
>>> >Does anyone know the differect between Super Beta and Beta?
>>
>>> In general, the same difference as between VHS and SVHS: slightly
>higher
>>> FM center frequencies for the Y and C video components, resulting in
>higher
>>> specifications for horizontal resolution (about the same as SVHS)...
>>
>>Not quite accurate; SVHS jumps up the luminance carrier frequency by
>>quit a bit more than does SuperBeta, resulting in a 100 line (more or
>>less) resolution advantage for SVHS when compared with SuperBeta.
(snip)
What exactly does a "line" really mean when referring to horizontal
resolution? Is there a technical definition? I understand that for
vertical resolution, this would mean "scan line", but since a single
scan line is a continuous analog waveform, what does it mean for
horizontal?
Also does anyone have specs for the total lines of horizontal
resolution for Beta, SuperBeta, VHS and SVHS?
Thanks,
Dayman
The nominal values for HR are:
VHS: 240
S-VHS: 400
Beta: 240
S-Beta: 270
ED-Beta: 500
But these values are deceptive since there is significant rolloff in the
high frequencies. But they should serve well for comparisons between
formats.
Vincent Kruskal
Remove anti-junk mail "t.j." from from-line