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Camcorders: Camcorder for .FLV video

by b.k.m - 4/23/07 12:27 PM
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Post 1 of 8

Camcorder for .FLV video

by b.k.m - 4/23/07 12:27 PM

I am looking for a video camera to produce video for the Internet. The end result will be streamed or progressive download Flash (.FLV)

Right now, Flash video is the Internet format of choice, but most camcorders are DVD format. Unfortunately, DVD is very unruly for conversion. I currently record Gigabytes of data only to convert it down to a few Megabytes.

Unfortunately, the DVD to Internet video conversion is not straightforward. First, there's interlacing versus de-interlaced, then there's frame rate, aspect ratio, resolution and data rate conversions. Since some of the divisions are fractional, it can easily go very bad.

Recently I switched to a digital camera (Sony DSC-T series) to record in MPEG format instead of DVD. This alleviates many of the NTSC conversion problems and gives me files that are much easier to work with.

I realize that there may not be cameras that record video directly in the .FLV format, but I want to streamline the production process as much as possible. Starting with smaller MPEG encoded video in a .MPG file instead of giant .VOB files is a start.

The biggest problem now is audio quality because the low-end cameras feature only built-in mic's. The DSC T series does have one advantage: no motor noise since it records to flash memory.

I am looking for a camera with an external audio jack so I can use a Sennheiser wireless receiver. Whatever microphone(s) and mixing I do can be transmitted to the camera this way during recording.

A DSC T-series with an audio input jack would be a great, portable Internet video rig.

I could use the bigger DCR camcorders. The hard disk units look good, but the models with external audio are expensive and only produce tons of NTSC-mangled DVD data I don't need.

I thought of mixing independently recorded audio, but this again complicates the production workflow.

Since the data rates, frame rates, and file sizes for Internet (.FLV for now) video is so different than DVD and HDTV, and conversions often go so badly, I wonder if someone will produce a camera ideally suited to recording non-NTSC/PAL/SECAM video for the Internet while still providing necessary features like external audio input.

Post 2 of 8

See Mr. Safety.

by R. Proffitt Moderator - 4/23/07 12:39 PM In reply to: Camcorder for .FLV video by b.k.m

I think you haven't seen this one yet. Takes the mystery out of it.

"Here is a guide for encoding your files for You Tube using Sony Vegas.

http://www.youtube.com/watch?v=03p3UlvkAT4 "

More at:

http://www.videoforums.co.uk/sony-vegas-media-studio/12506-encoding-youtube-vegas.html
http://www.videoforums.co.uk/sony-vegas-media-studio/12506-encoding-youtube-vegas-2.html

Given the above information now see the camera Mr. Safety uses. Get one of those.

Bob

Post 3 of 8

Thanks

by b.k.m - 4/23/07 3:12 PM In reply to: See Mr. Safety. by R. Proffitt Moderator

There might be some good information there for starters, but the results in those discussion were ultimately poor.

In the cases described, the camcorder recorded video (probably .VOB) is first mashed into .WMV or .MP4 and then it's reconverted and recompressed into .FLV. The people reported poor results.

The variables of frame rate, non-square pixel shapes, aspect ratios, audio and video data rates, and so on cannot go through many conversions without a serious degradation of the quality.

The most popular option to date appears to be starting with very high-end quality so that when it's mashed multiple times it still looks ok. But if the source material was recorded in a suitable format, things would go a lot easier.

Also, since YouTube does its own .FLV re-encoding with options I cannot set, I will not actually be using their media server. Instead I will convert to .FLV myself where I have control over the settings.

Post 4 of 8

Really? I found Mr. Safety's uploads to look pretty good.

by R. Proffitt Moderator - 4/23/07 3:20 PM In reply to: Thanks by b.k.m

Sorry, but I missed your point entirely so I'll just sit back and wait to see if anyone can do better for you.

Bob

Post 5 of 8

Safety just put up another item on improving quality.

by R. Proffitt Moderator - 4/25/07 8:20 AM In reply to: Thanks by b.k.m

http://www.youtube.com/watch?v=OePFgmyvnWo

The lighting tips are spot on.

Bob

Post 6 of 8

Mr. Safety is really good!... but why is he named Mr Safety?

by cuvtixo - 4/25/07 8:48 AM In reply to: Safety just put up another item on improving quality. by R. Proffitt Moderator

I just wish he bought cheap stuff on Amazon or Ebay. Or even Target. I Hate Walmart! Anyways, its really helpful, not just for noobies but for video-makers who are experienced, or at least used-to other, non-internet, non-Youtube media. If you want to independently produce internet video (as the original poster apparently does) there is a steep learning curve and lot of still-evolving web technology to deal with. Any all-in-one solution that might become available, faces the danger of obsolescence too soon. Personally I think .flv sucks, but then again MP3 isn't great for audio either, but its the defacto standard, and easier, more portable than other formats. Shrug.

Post 7 of 8

A link on the wikipedia..

by R. Proffitt Moderator - 4/25/07 9:20 AM In reply to: Mr. Safety is really good!... but why is he named Mr Safety? by cuvtixo

http://en.wikipedia.org/wiki/Mr._Safety

Seems to note some stunts. But be it as it is, the videos he made on making better videos do get most of the kinks or usual mistakes out of the way.

Bob

Post 8 of 8

Wrong end of the stick! Formats with editing software tools

by cuvtixo - 4/25/07 7:52 AM In reply to: Camcorder for .FLV video by b.k.m

If you want to post video to the internet, especially in .flv format, you really need to be familiar with software tools like Adobe Flashplayer Professional. Commonly FLV files contain video bit streams which are a variant of the H.263 video standard, under the name of Sorenson Spark. Newer revisions of Flashplayer support the playback of On2 TrueMotion VP6 video bit streams. On2 VP6 can provide a higher visual quality than Sorenson Spark, especially when using lower bit rates. On the other hand it is computationally more complex and therefore will not run as well on certain older system configurations.
DVD "format" is actually the easiest (of lousy choices, I admit), because it is not really a compression format as the others are- Your Sony is compressing video on the fly, and saving as MPEG4, not directly "recording" in that format. And, unfortunately, video is just not going to look good over the internet.
What you have to do is either learn a lot more about computer video editing AND web video technology, or just concentrate on videorecording and leave web conversion for others.

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