My JVC Everio GZ-HM670

[Bishop_99]

I recently purchased a JVC Everio GZ-HM670, upgrade from my previous JVC GR-D850. The main reason I upgraded my camcorder is that I wanted to start recording my home videos in HD, and since I bought a BD burner earlier this year, I was going to put it to good use.

The online place were I bought this camcorder indicated that it was in Full HD (1080p). While it's true that the camcorder records in 1920x1080, it's an interlaced signal and not progressive. I bought it anyways to try it out and if I wasn't happy, I would send it back. The camcorder records up to 24 Mbps. After I received the camera and I began recording, I was pleased with what I saw. The bad side is that the image has more noise than I expected in the decently lit indoor scenes and in the night scenes the noise isn't too excessive but a strange ghosting effect appears when I pan the cam, I'm still trying to figure out what is causing that. It seems as if the camcorder applies some kind of noise reduction and that is what causes that, but I haven't gotten to the root of it. When I switch the camcorder to the picture mode, the ghosting effect is gone in the night scenes and an excessive amount of noise appears on the image.

For the positive, the picture quality is definitely better than that of my previous camera. Outdoor daylight scenes look great and I'm satisfied with the well lit indoor scenes. The convenience of being able to transfer the files in to the computer instead of capturing them in real time is another positive point. While I can't edit to much on sony vegas because my cpu isn't fast enough at the moment, I'm able to merge the video clips with TSmuxer and author a nice Blu-ray disc on DVD Architect. I made a sample test disc with an hour of randomly recorded footage and the video played great averaging about 24 Mbps, and all the sub-menus were very easy to access. I was able to make a "special features" menu to include old SD videos I shot with my old cam and it all played fine. Now I have to film enough to fill up a DL Blu-ray disc.

While I later found out a few other cams record in 1080p with 24fps or 60fps, they were a little out of my price range because of the software I had to get. I can say that I'm pretty happy with my first HD cam.

[HAMP]

Congrats!!!! And nice camera!!!

I bought one something like this one earlier this year to replace a camera that was stolen. My model # GZ-HM340, I don’t have the 40X, mine is only 20X optical.

I haven’t used it much, but since you made this post, I think maybe I should pull it out and use it more. I will be going on a few business trips soon, and that maybe a great time to use it.

I have no complaints about my camera, I kinda like the upload to youtube, but youtube will have some audio problems. It’s a popping noise I get from youtube, but not the original

This is the one that was done on the new camera, and you can hear the popping noise. It’s not on the orginal, but only on Youtube. I even re-uploaded a few times just to see if it was the transfer. I have other vids, that do the sametime.

YouTube - ‪Little Jazz‬‏

Here is one, I did prior to buying the HD camera, which was done with my cellphone. I was in shock at the bad quality, but the audio was fantastic. You don’t have to listen to the whole things to see what I mean, maybe just the first few minute’s.

YouTube - ‪DSCN0084.AVI‬‏

[Bishop_99]

Thanks!


Yes, I can definitely hear the popping noise with the video uploaded to youtube via the new cam. I haven't tried to upload any videos to youtube yet, but I might do so later on this week to see if I have the same problem. It's a strange issue. It might be caused by the way the encode of 'upload to youtube' feature works? Maybe you can try to upload the video file directly to youtube from your PC instead of through the cam.

I also wasn't recording a lot of personal videos with my old SD cam, but now I'll be recording a whole lot more. it's a very nice little cam.

[HAMP]

Originally Posted by Bishop_99

Thanks!


Yes, I can definitely hear the popping noise with the video uploaded to youtube via the new cam. I haven't tried to upload any videos to youtube yet, but I might do so later on this week to see if I have the same problem. It's a strange issue. It might be caused by the way the encode of 'upload to youtube' feature works? Maybe you can try to upload the video file directly to youtube from your PC instead of through the cam.

I also wasn't recording a lot of personal videos with my old SD cam, but now I'll be recording a whole lot more. it's a very nice little cam.

That's how it is uploaded. I haven't tried to upload from the camera thru the PC. It's been awhile, I need/should search for some updates to this problem.

[Bishop_99]

I recorded a clip to hear if I had the same audio issues on youtube as your video has. I didn't record it in the uxp mode, instead, I recorded it in the sp mode which uses about 12Mbps to save on uploading time. I uploaded the file directly to youtube as you did. It doesn't seem to have the same popping noise your video has.

http://www.youtube.com/watch?v=PmfskY82XSs

Maybe it was a little glitch youtube had at the time you uploaded that video in that quality. Hopefully it's resolved for you at this point.

[Bishop_99]

A little update. I ended up buying a BD-Re so I can do a lot of tests with the final footage I shoot for my home video. This is the video bitrate and the specs of the hour long random footage I shot.

                                                                                                                Total   Video                                             
Title                                                           Codec   Length  Movie Size      Disc Size       Bitrate Bitrate Main Audio Track                          Secondary Audio Track
-----                                                           ------  ------- --------------  --------------  ------- ------- ------------------                        ---------------------
00001.MPLS                                                      AVC     1:09:19 12,405,947,712  16,190,512,820  23.86   22.49   DD AC3 2.0 256Kbps

DISC INFO:

Disc Title:     VOLUME_01
Disc Size:      16,190,512,820 bytes
Protection:     AACS
BD-Java:        No
BDInfo:         0.5.6

PLAYLIST REPORT:

Name:                   00001.MPLS
Length:                 1:09:19 (h:m:s)
Size:                   12,405,947,712 bytes
Total Bitrate:          23.86 Mbps

VIDEO:

Codec                   Bitrate             Description     
-----                   -------             -----------     
MPEG-4 AVC Video        22494 kbps          1080i / 29.970 fps / 16:9 / High Profile 4.0

AUDIO:

Codec                           Language        Bitrate         Description     
-----                           --------        -------         -----------     
Dolby Digital Audio             Undetermined    256 kbps        2.0 / 48 kHz / 256 kbps / DN -4dB

FILES:

Name            Time In         Length          Size            Total Bitrate   
----            -------         ------          ----            -------------   
00001.M2TS      0:00:00.000     1:09:19.359     12,405,947,712  23,861          

CHAPTERS:

Number          Time In         Length          Avg Video Rate  Max 1-Sec Rate  Max 1-Sec Time  Max 5-Sec Rate  Max 5-Sec Time  Max 10Sec Rate  Max 10Sec Time  Avg Frame Size  Max Frame Size  Max Frame Time  
------          -------         ------          --------------  --------------  --------------  --------------  --------------  --------------  --------------  --------------  --------------  --------------  
1               0:00:00.000     0:03:39.152     22,526 kbps     28,089 kbps     00:02:31.050    23,946 kbps     00:01:12.338    23,216 kbps     00:01:12.472    93,938 bytes    418,041 bytes   00:01:53.546    
2               0:03:39.152     0:12:44.764     22,458 kbps     35,279 kbps     00:14:45.050    25,708 kbps     00:14:44.183    24,437 kbps     00:14:43.782    93,669 bytes    368,819 bytes   00:12:12.832    
3               0:16:23.917     0:11:53.413     22,430 kbps     38,268 kbps     00:23:03.348    26,368 kbps     00:23:01.747    24,288 kbps     00:22:56.808    93,552 bytes    392,792 bytes   00:21:19.978    
4               0:28:17.330     0:12:54.040     22,445 kbps     42,215 kbps     00:38:45.389    26,308 kbps     00:38:45.356    24,238 kbps     00:39:29.734    93,616 bytes    460,831 bytes   00:38:46.357    
5               0:41:11.371     0:13:31.378     22,578 kbps     27,107 kbps     00:53:51.127    24,103 kbps     00:53:50.493    23,588 kbps     00:53:50.660    94,169 bytes    374,053 bytes   00:47:01.518    
6               0:54:42.749     0:14:36.609     22,534 kbps     34,272 kbps     00:57:38.421    24,802 kbps     00:57:35.819    23,412 kbps     00:57:38.154    93,989 bytes    427,119 bytes   00:58:27.737    

STREAM DIAGNOSTICS:

File            PID             Type            Codec           Language                Seconds                 Bitrate                 Bytes           Packets         
----            ---             ----            -----           --------                --------------          --------------          -------------   -----           
00001.M2TS      4113 (0x1011)   0x1B            AVC                                     4173.302                22,492                  11,733,000,152  63,902,015      
00001.M2TS      4352 (0x1100)   0x81            AC3             und (Undetermined)      4173.302                256                     133,547,008     782,502

Just another great little feature I can do, along with hooking the cam directly to my Sony BD 470 to play the video and see the bitrate.


I'm extremely pleased with the well lit indoor scenes and I'm extremely happy with the outdoor daylight scenes. Still, that strange ghosting effect is there in the darker scenes when i pan the cam. Some candle light features shows up on screen and then this effect takes place...... It looks like a noise reduction feature, but when I call JVC about it, they weren't of much help. They just told me to switch the camcorder to manual, and since the candle light icon was gone, problem solved, but that's not the case. If anyone has any idea on how I can remove or play around with the noise reduction feature on this camcorder, please let me know. I can't figure it out.


Here is a sample video in a very poorly lit scene. See the strange ghosting/trailing effect caused when I pan the cam.

‪00031‬‏ - YouTube