HD8 ISO Recordings are all low quality

Has anyone tested or noticed that their ISO program file and ISO recordings are all very low resolution?
Even when I select the Hyperdeck high setting without streaming, all recordings do not go above 6-7mb.

I've tried on both the internal and external storage with no luck. I've changed the settings back and forth and power cycled.

Any thoughts? Will give BMD support a call tomorrow.

That is the same with all ISO atems. The ISO's are low quality. The PGM is higher quality

"SDI inputs recorded as separate H.264 .mp4 files at up to 70Mb/s quality at the ATEM video standard with AAC audio."

Been a while since I used the Atem Mini for ISO recordings - but close ups were acceptable. Wide shots fell apart a bit even at the highest quality settings. Not really broadcast quality though.

"SDI inputs recorded as separate H.264 .mp4 files at up to 70Mb/s quality at the ATEM video standard with AAC audio."

Been a while since I used the Atem Mini for ISO recordings - but close ups were acceptable. Wide shots fell apart a bit even at the highest quality settings. Not really broadcast quality though.

Right, but I'm not even getting above 7mb/s in both program and ISO recordings at the hyperdeck high setting with no streaming.

My extreme ISO performs as it should.

MB or Mb?

70 Megabits per second is for 1080 60P.
That's just under 9 MegaBytes per second.

30p and 24p will reduce the data rate further.

This setting is a little odd, but your ISO quality is determined by your streaming quality setting, even if you are not streaming.

[Gary Adams]

Hello all. Since there is understandable confusion around bit rates, I would like to offer some information on how the ATEM ISO recordings are made.

First, the Program recording (ISO on or off), is H.264 variable bit rate with the max set by the streaming quality. So, if the streaming quality is set to Streaming High, the max bit rate will be around 9 Mb/s if the fps is above 30. It will be max at 6 Mb/s if the fps is 30 or below. Each quality menu setting will have two bit rates. As this is variable bit rate by design, complex images will have higher bit rates than simple images like graphics on a background. When you see a low bit rate it is because the image content doesn't require any more for the same level of quality.

Second, all ISO recordings are set fixed at Hyperdeck High. These too are variable. The max will be around 70 Mb/s for complex video. Much lower for simple images. For example, the unused inputs will still have a file but since they are black, the bit rate will be very low making very small files.

Last, if the input video is derived from low bit rate content, the ISO files will generally be similar or lower being additionally compressed. For example, if you are streaming a camera directly to the ATEM HD8 ISO, the stream quality of the camera will be recorded in the ISO for that source. It would not be higher. Or even if you are playing H.264 video from a Hyperdeck into the ATEM ISO, the recoding will likely be lower than the original bit rate of the recording since the video is less complex due to additional compression.

I hope this helps explain the scenarios some users experience. Since NAB is coming up soon, I hope many users will stop by and say hello.

Regards, Gary

Hello all. Since there is understandable confusion around bit rates, I would like to offer some information on how the ATEM ISO recordings are made.

First, the Program recording (ISO on or off), is H.264 variable bit rate with the max set by the streaming quality. So, if the streaming quality is set to Streaming High, the max bit rate will be around 9 Mb/s if the fps is above 30. It will be max at 6 Mb/s if the fps is 30 or below. Each quality menu setting will have two bit rates. As this is variable bit rate by design, complex images will have higher bit rates than simple images like graphics on a background. When you see a low bit rate it is because the image content doesn't require any more for the same level of quality.

Second, all ISO recordings are set fixed at Hyperdeck High. These too are variable. The max will be around 70 Mb/s for complex video. Much lower for simple images. For example, the unused inputs will still have a file but since they are black, the bit rate will be very low making very small files.

Last, if the input video is derived from low bit rate content, the ISO files will generally be similar or lower being additionally compressed. For example, if you are streaming a camera directly to the ATEM HD8 ISO, the stream quality of the camera will be recorded in the ISO for that source. It would not be higher. Or even if you are playing H.264 video from a Hyperdeck into the ATEM ISO, the recoding will likely be lower than the original bit rate of the recording since the video is less complex due to additional compression.

I hope this helps explain the scenarios some users experience. Since NAB is coming up soon, I hope many users will stop by and say hello.

Regards, Gary

Thank you Gary. That explains it perfectly! My playback from the hyperdeck were compressed files even though I re-encoded to prores.. Much appreciate the response and I look forward to seeing what BMD has to offer at NAB.
Best