Multiavchd used & audio choppy

[jbitakis]

I tried once again using Multiavchd to author avchd files to play on my bluray player.
After loading all the video files, I pressed START and then I pressed AVCHD disc (Output can be burned to DVD R/RW or BD-R/RE discs for playback in AVCHD-ready players. Strict mode employs in-mux menu (static only). Suitable for Panasonic players and DVD media).
I did not use the AVCHD strict, I used the AVCHD disc mode for the output.
I then burned this using imgburn, and the video played well, but the audio was choppy.
Question: Should I have used AVCHD Strict instead? I don't really understand the difference. Is this a reason why the audio turned out choppy?

[jbitakis]

Ok, I used the AVCHD strict and it played a little better, but still audio is choppy. I might just go ahead and try the blu ray option. It's just that using a blank bd-r cost $1.50 vs. $.20 for a blank dvd+R, so if it screws up it will cost me over 7x as much for a coaster.

[edDV]

Are these still 28 Mbps 60p Panasonic files? If so try BD media. If that doesn't work, re-encode to 24 Mbps or lower 60i and see what happens.

My Sony Blu-Ray player chokes above 25 Mbps from DVDR or USB.

Blu-Ray BD discs can handle higher bit rates than DVDR. To play 24 Mbps from DVDR media, the disk needs to spin about 3x. The AVCHD disc spec only calls for 2x playback at 17 Mbps. Some players can reach 24 Mbps but may not be capable of reaching 28 Mbps from DVDR.

[mail2tom]

Any time I've had audio issues with a video that I've processed through MultiAVCHD the problem has been the source audio. Also, a cheaper way to experiment would be to use a BD-RE rather than a BDR.

[jbitakis]

These BD-R's were $1.50/piece. How much cheaper are BD-RE's? The source audio is fine. It plays perfect via the usb port on my friend's PS3. It also plays perfectly on my PC.
Yes this is the same 1080 60P panasonic video files. I will try the BD-R media.

The total bitrate for my panasonic files are 26Mbps. I just rechecked them


But how do you re-encode to 24 Mbps (or lower) with Multiavchd in case I want to try the DVD+R again. Or do I use some other program to re-encode it lower to 24Mbps or less.

[edDV]

These BD-R's were $1.50/piece. How much cheaper are BD-RE's? The source audio is fine. It plays perfect via the usb port on my friend's PS3. It also plays perfectly on my PC.
Yes this is the same 1080 60P panasonic video files. I will try the BD-R media.

The total bitrate for my panasonic files are 26Mbps. I just rechecked them


But how do you re-encode to 24 Mbps (or lower) with Multiavchd in case I want to try the DVD+R again. Or do I use some other program to re-encode it lower to 24Mbps or less.

MultiAVCHD uses the x264 (h.264) encoder when asked to re-encode. I don't have it loaded on this computer so can't bring up menus at the moment. You could also change the camcorder settings to shoot 24 Mbps 60i for a test clip. That may be the better test. It would eliminate encoder setting issues. Shoot some action so you will notice any frame drops.

As said above, my Sony player does fine with 24 Mbps 60i AVCHD and 25 Mbps 60i HDV but won't play 28 Mbps 60p h.264 +AC3 encoded with Vegas. I don't have any sample Panasonic 60p files.

[jbitakis]

I tried using BD-R media now and the audio is still choppy at a bitrate of 26.

I then used Full Video converter Free to lower the bitrate slightly to 23 and changed the container to AVI (keeping the same FPS of 59 and the 1920x1080 60P video source). I copied this video file to a flash drive and plugged that flash drive into the USB port of the Bluray player. Guess what, the video played perfectly, and I really don't notice any decrease in video quality. The audio is perfect too. I think I may now try and just lower the bitrate on all the video and then burn it on a bluray disc and see if it also plays perfect like the flash drive did. That is until I get a media player or a PS3 that can handle the m2ts video files that I have.

[edDV]

I tried using BD-R media now and the audio is still choppy at a bitrate of 26.

I then used Full Video converter Free to lower the bitrate slightly to 23 and changed the container to AVI (keeping the same FPS of 59 and the 1920x1080 60P video source). I copied this video file to a flash drive and plugged that flash drive into the USB port of the Bluray player. Guess what, the video played perfectly, and I really don't notice any decrease in video quality. The audio is perfect too. I think I may now try and just lower the bitrate on all the video and then burn it on a bluray disc and see if it also plays perfect like the flash drive did. That is until I get a media player or a PS3 that can handle the m2ts video files that I have.

My Sony Blu-Ray player chokes above 25 Mbps too.

Better to use an m2ts/mts wrapper instead of avi which is not a supported Blu-Ray container.

[jbitakis]

Give me an example of an m2ts/mts wrapper please.

[edDV]

Give me an example of an m2ts/mts wrapper please.

See answer in your other thread.