Converting 24bit/48k bounce to 16bit/44.1k?

[James Steele]

I just see the graphics now. How did you attach these? Oh I see... they are png

[James Steele]

Okay... so it's not letting you attach jpegs? Weird...

[mikehalloran]

Doesn't matter the browser, JPEG still doesn't work. It doesn't matter if .jpg or .jpeg. Yesterday, .png, the default for screen shots, didn't work at all.

[James Steele]

Mike... I uploaded other jpegs just now. Yours don't seem to work. I took one of the ones you emailed to me and tried to open it in Photoshop and got this error:

Screen Shot 2022-12-28 at 1.40.14 PM.png (74.45 KiB) Viewed 604 times

How did you create these? It looks like maybe somehow these JPEGs got corrupted??

[James Steele]

I just tried to open the other graphics you emailed to me. Photoshop could only open the png, it refused to open the other jpegs with an error message. When I tried to open Bit depth.jpg it gave me a different error. It looks like those jpegs were corrupted somehow?

Screen Shot 2022-12-28 at 1.44.43 PM.png (42.66 KiB) Viewed 587 times

[James Steele]

Doesn't matter the browser, JPEG still doesn't work. It doesn't matter if .jpg or .jpeg. Yesterday, .png, the default for screen shots, didn't work at all.

Yeah... yesterday, actually not just .png but nothing worked between about 4:30PST and 8:30PST yesterday due to a problem with the board update, but that was fixed AFAIK. The jpegs you sent me appear to be corrupted. Have you tried opening them in Photoshop on your end. Maybe it's a bug in the editing program you used to save them?

[mikehalloran]

Hmmm... normally, I convert to jpg by renaming in Finder and this works on a couple of sites where I cannot post .png files. Not here, apparently. Trying the conversion in Preview, Word or Photoshop resulted in a JPEG that works here. Ok, time to declare victory.

Now… where were we?

[James Steele]

Hmmm... normally, I convert to jpg by renaming in Finder and this works on a couple of sites where I cannot post .png files. Not here, apparently. Trying the conversion in Preview, Word or Photoshop resulted in a JPEG that works here. Ok, time to declare victory.

Now… where were we?

I know what I'm going to do. I'm going to go out and buy some aspirin so I don't have a heart attack next time I get a scare like that!! Haha! I am relieved!!! So were you just renaming the .png file by changing the file extension?

Either way... I will look at what you were trying to share with me. Main thing is can I apply a dither plug in during the 24-bit to 16-bit conversion? I had always read that you need to dither when doing this, for example, for a file you want to burn to a standard CD.

Speaking of which, I really ought to get myself an external optical burner for my Mac Studio. Do they have anything that does CDs, DVDs, and BluRay???

[mikehalloran]

Long story short on dithering. If you plan to downsample to 16 bit, Izotope recommends not applying dither to your initial bounce but instead to your downsample conversion. You can use Ozone as a VST in TwistedWave for this.
https://support.izotope.com/hc/en-us/a ... -dithering

Speaking of which, I really ought to get myself an external optical burner for my Mac Studio. Do they have anything that does CDs, DVDs, and BluRay???

USB-C BluRay compatible burners are more expensive but readily available on Amazon. These are backwards compatible to DVD and CD. I’d make sure that Mac compatibility is part of the description.

[James Steele]

Long story short on dithering. If you plan to downsample to 16 bit, Izotope recommends not applying dither to your initial bounce but instead to your downsample conversion. You can use Ozone as a VST in TwistedWave for this.
https://support.izotope.com/hc/en-us/a ... -dithering

Excellent, Mike, thanks! Yeah... I went poking around in Twisted Wave yesterday but given the board issues, I had to put that off, but I could see that it can host plug ins. That sounds like a great way to go. The program is a lot deeper than I had given it credit for and it looks like I may need to read the manual. I see that it has batch processing, so it would be really cool if I could just drag an audio file onto it and have it do its thing and spit out a dithered, sample-rate, bit-depth converted file. Or even just load one and initiate a batch process. I'm assuming too, that I could use a different plug if I wanted to to do the dithering. At that point in the process I'd have level maximized it and all the rest. I'd just want to apply dither. I have to look if it supports VST3. I'm trying to not install VST2's anymore in favor of VST3 since that's where things seem to be going. I also like the dither in Wave Arts Final plug, too. Good stuff. Thanks for this info!

Speaking of which, I really ought to get myself an external optical burner for my Mac Studio. Do they have anything that does CDs, DVDs, and BluRay???

USB-C BluRay compatible burners are more expensive but readily available on Amazon. These are backwards compatible to DVD and CD. I’d make sure that Mac compatibility is part of the description.

Yeah... might be too price for me. Seems though that if I want to burn video that can play back at normal HD on a regular TV, I need a BluRay burner. Also interested them secondarily as backup. I'm guessing BluRay used to store data can hold a lot more than the 4GB (?) limit DVDs had? I could be way off on that capacity... been a long time since I burned a data DVD.

[mikehalloran]

You can get DVD+R DL blanks with 8.5GB capacity. Dual Layer is what the MacOS used to ship on beginning Leopard. I like Inkjet Printable since you can write on it with a Sharpie and not hurt the data layers (plus I still have a working HP CD Printer). Verbatim (Mitsubishi) is a reliable brand.
https://smile.amazon.com/Verbatim-DVD-D ... ref=sr_1_8

Any of the cheap USB-C burners should support that nowadays. This is the last one I bought for use with my wife's M1.
https://smile.amazon.com/gp/product/B07 ... =UTF8&th=1

[James Steele]

Cool, Mike! Thanks! I guess the questions is how bad do I want to be able to burn and HD movie onto a BluRay that the consumer BluRay player attached to my TV can play? 8.5 isn't too bad. I have a whole stack of 1TB spinners left when I disassembled an old school RAID a client gave me, and an OWC Dock... so those could work for additional backup as well.

I've got OT here... oops. Need to look at Twisted Wave now. I know it came in very handy for me when I made my first NKS library and figured out how to make the audio previews. They had to be saved as Ogg Vorbis files.