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05-21-2008, 09:26 AM
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Record OTA HD at SD resolution/bitrate?
Is it possible to record to an ATSC HD channel to an MPEG-2 profile at SD resolution/bitrate, or would I have to record in HD and showsqueeze?
I don't have an HDTV, but want to take advantage of free OTA signals. op
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Running BeyondTV v4.9.2 AMD BE-2350, 2GB RAM, ATI 4650, Hauppauge HVR-1250, HVR-1600, KWORLD UB435-Q, HD1(OS): 250GB Samsung SATA HD2(RECORD): 500GB WD SATA 
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05-21-2008, 09:40 AM
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Re: Record OTA HD at SD resolution/bitrate?
Quote:
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Media- 5 Tuners XP SP2 BTV 4.9.X Asus P4S8X|P4 2.4|FX5200|PVR350/250/150/NVidia DualTV|OB SNDMAX DVD - 10 Tuners XP SP2 BTV 4.9.X Asus P4800E Dlx|P4 3.0 HT|FX5700|2GB Mem|PVR250/PVR150//2 PVRUSB2/]3 HDHomeRun/QAM 3 BTV Links - All XP SP2 BTV 4.9.X, BM 1.1, Firelfy Family Room Asus P4800 Dlx|P4 2.6HT|7600GT Treadmill Shuttle P4 2.6HT|6600GT Basement Asus P4800 Dlx|P4 3.0HT|6600GT
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05-21-2008, 09:42 AM
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Re : Record OTA HD at SD resolution/bitrate?
When recording OTA signal, the capture card simply dumps it to a file, so you can't select a bit rate or anything... OTOH, some stations are sending both the HD (at a lower bit rate) and the SD version in that stream (or a weather channel or various other crap), so it might be worth checking for the stations that you are interested by...
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BTV 4.9.2 | XP Pro SP2 (nLite'd)| PVR-250/500/Firewire | Videotron - Pace 551 HD | Hitachi 50V500 (DVI) To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. : BTV 4.9 SDK addition for developers. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. : Conflict resolution/Guide updates/Searches/etc. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. : External recordings, Firewire/clear QAM/DVB/R5000HD/etc. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. : Record from a simple .GRF file. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 3 or greater. You currently have 0 posts. : MainLobby integration.
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05-21-2008, 10:11 AM
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Re: Record OTA HD at SD resolution/bitrate?
1. How large is the average file for a 1 hour HD recording?
2. Does the showsqueeze take a lot longer than an SD MPEG-2 to divx recompression? 3. Does the commercial skip take a lot longer to generate as well? 4. What format is the HD recording stored in? 5. Can the HD recording be played at SD resolution, or does it have to be converted first? 6. Are there heavy system requirements to playback the HD at SD resolution? op
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Running BeyondTV v4.9.2 AMD BE-2350, 2GB RAM, ATI 4650, Hauppauge HVR-1250, HVR-1600, KWORLD UB435-Q, HD1(OS): 250GB Samsung SATA HD2(RECORD): 500GB WD SATA Last edited by opilion; 05-21-2008 at 10:17 AM.
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05-21-2008, 11:03 AM
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Re: Record OTA HD at SD resolution/bitrate?
1 & 2 - That is all dependent on the power of your computer, namely CPU. With my specs in my tag, I showsqueeze hour shows in 15 minutes time.
3 - Smartchaptering is a quicker process than showsqueezing since it's just scanning for the breaks in the show rather than reencoding. 4 - Transport Stream files 5 - You mean playback on a non-HD capable display? Sure it will play. 6 - I believe that the Nvidia line of video card become HD compliant at the 7300 line and above. I know some have had no issues with using some of the higher end 6000 lines either. However the 8000 series includes a newer chipset that offloads HD playback to the graphic card rather than taxing the CPU. I'm still a bit hazy as to what you really mean by HD to SD. Is your tv/monitor not capable of resolutions over 480?
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Dell XPS 410 | Pen D 935 | XFX Nvidia 8800 GT OC | 4 gigs of Kingston RAM | 2 SATA300 500 gig drives non-RAID | XP SP2 1 PVR-500 standard cable | 1 HVR 2250 | 1 HDHR using QAM | 1 HD-PVR| Sony Bravia 42" connected by HDMI running 1080p | Nvidia Purevideo DVD and Arcsoft H.264 decoders | Beta Tester You should always review your BTV Log if you have issues.
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05-21-2008, 11:40 AM
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Re: Record OTA HD at SD resolution/bitrate?
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5. So TS files can be played back on my SD TV connected via S-Video at 640x480? 6. With MPEG-2 or DivX files, the resolution of the recording could be higher than the 640x480 I was outputing at. Are TS files played-back scaled to the lower resolution as well?
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Running BeyondTV v4.9.2 AMD BE-2350, 2GB RAM, ATI 4650, Hauppauge HVR-1250, HVR-1600, KWORLD UB435-Q, HD1(OS): 250GB Samsung SATA HD2(RECORD): 500GB WD SATA
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05-21-2008, 11:51 AM
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Re: Record OTA HD at SD resolution/bitrate?
Quote:
Playback of TS files on SD TV is dependant mostly on the processing power of the PC (CPU/Memory/Video card)
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Media- 5 Tuners XP SP2 BTV 4.9.X Asus P4S8X|P4 2.4|FX5200|PVR350/250/150/NVidia DualTV|OB SNDMAX DVD - 10 Tuners XP SP2 BTV 4.9.X Asus P4800E Dlx|P4 3.0 HT|FX5700|2GB Mem|PVR250/PVR150//2 PVRUSB2/]3 HDHomeRun/QAM 3 BTV Links - All XP SP2 BTV 4.9.X, BM 1.1, Firelfy Family Room Asus P4800 Dlx|P4 2.6HT|7600GT Treadmill Shuttle P4 2.6HT|6600GT Basement Asus P4800 Dlx|P4 3.0HT|6600GT
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05-21-2008, 05:13 PM
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Re: Record OTA HD at SD resolution/bitrate?
My bad, I mis read the first item. Oops.
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Dell XPS 410 | Pen D 935 | XFX Nvidia 8800 GT OC | 4 gigs of Kingston RAM | 2 SATA300 500 gig drives non-RAID | XP SP2 1 PVR-500 standard cable | 1 HVR 2250 | 1 HDHR using QAM | 1 HD-PVR| Sony Bravia 42" connected by HDMI running 1080p | Nvidia Purevideo DVD and Arcsoft H.264 decoders | Beta Tester You should always review your BTV Log if you have issues.
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05-22-2008, 11:26 AM
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Re: Record OTA HD at SD resolution/bitrate?
You don't need an HDTV to watch OTA HD programming. Obviously, it won't be in HD but it plays fine as long as you have a computer with the minimum requirements for HD. My bedroom tv is a 15yo 27" w/S-video input from the computer and I can watch live OTA HD signals or pre-recorded TS files in letterbox or zoom to fill the 4:3 screen.
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BTV : Asus M3N78 Pro, Phenom 9650, GeForce 8300, 4GB RAM, XP Pro, 4.7TB, (2) HVR-2250, (1) HD-PVR Link : IBM Netvista, 2.0GHz, ATI HD3450 agp, 768MB RAM, XP Pro (smoooooth ATSC & HD-PVR) Link : Acer AspireRevo 3610
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05-22-2008, 11:38 AM
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Re: Record OTA HD at SD resolution/bitrate?
Or just record from an ATSC STB into an SD tuner's line in:
http://forums.snapstream.com/vb/show...30&postcount=6
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