![]() Regarding audio recording, S-VHS retains VHS's conventional linear ( baseband) and high fidelity (Hi-Fi) – Audio Frequency Modulation (AFM) soundtracks. Lack of color resolution was a deficiency shared by S-VHS's contemporaries, such as Hi8 and ED-Beta – all of which were limited to 0.4 megahertz or 30 TVL resolution. ![]() In VHS, the chroma carrier is both severely bandlimited and noisy, a limitation that S-VHS does not address. This is because S-VHS does not improve other key aspects of the video signal, particularly the chrominance (chroma) signal. Yet, the trained eye can easily spot the difference between live television and an S-VHS recording of it. In practice, when time-shifting TV programs on S-VHS equipment, the improvement over VHS is quite noticeable. The often quoted horizontal resolution of "over 400" means S-VHS captures greater picture detail than even NTSC analog cable and broadcast TV, which is limited to about 330 television lines (TVL). Increased luminance bandwidth produces a 60% improvement in (luminance) picture detail or a horizontal resolution of 420 vertical lines per picture height – versus VHS's 240 lines. Note also that the luminance modulator bandwidth is increased: in contrast to standard VHS' frequencies of 3.8 MHz (synch tip) to 4.8 MHz (peak white), S-VHS uses 5.4 MHz synch tip and 7.4 MHz peak white. Increased bandwidth is possible because of the increased luminance carrier from 3.4 megahertz (MHz) to 5.4 MHz. S-VHS improves luminance (luma) resolution by increasing luminance bandwidth. Like VHS, the S-VHS format uses a color under a modulation scheme. It has been standardized as IEC 60774-3 and IEC 60774-4. ![]() By the end of 1987, the first S-VHS VCR models from other competitors included Hitachi VT-2700A, Mitsubishi HS-423UR, Panasonic PV-S4764, RCA VPT-695HF, and Toshiba SV-950. Victor Company of Japan introduced S-VHS in Japan in April 1987, with their JVC-branded HR-S7000 VCR, and in certain overseas markets soon afterward. ![]() S-VHS ( スーパー・ヴィエイチエス), the common initialism for Super VHS, is an improved version of the VHS standard for consumer-level video recording. Home video, home movie, educational, video production, professional digital audio 9 hours in super long play (SLP) mode on T-180, 10 hours in PAL-LP with E-300 tape (up to 15h in PAL-EP machines) ![]()
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