Hello guest, if you like this forum, why don't you register? https://fanrestore.com/member.php?action=register (December 14, 2021) x


Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Laserdisc PCM Capture Guide
#21
(2019-07-30, 05:00 PM)DeafYakuza Wrote: Aha, it's not bad?

Applying the audio delay is necessary to keep the audio in sync, so the fact that eac3to applied it for you is a good thing.  That is why it is automatic.  As long as the output is in sync, everything's fine.

Removing the dialnorm is necessary for proper decoding.  That's a good thing as well.

Quote:So, I have no to do anymore for that? I mean I can go to editing with these tracks directly, right?

Yes.  Unless you have a specific reason to suspect that a problem has occurred, you can edit your tracks now.
Reply
Thanks given by: DeafYakuza
#22
It sounds very great! I'm so happy that I did it at all, especially for the capturing AC-3 DD5.1. Thank you very much, Chewtobacca!
Reply
Thanks given by:
#23
Btw, You can capture Bit-Perfect with Quicktime 7 Pro on macOS, up to macOS High Sierra -> macOS Catalina will nuke any 32bit apps

- open Midi Setup and select Build-in Input and select 16-bit Integer 44,1kHz (IMPORTANT: You've to do every time after you've rebooted your system)
- open Quicktime 7 Pro -> New Audio Recording -> press Record
- When recording is finished press the record button again
- Export audio (CMD+E) and select Sound to Wave -> Options: Stereo, 16bit, 44,1kHz, Best Quality -> press OK
- Save audio at your preferred location

This was tested using a DTS Audio CD and DTS Parser (Windows App) and the final result is a proper DTS file, hence Bit-Perfect

I never good this too work in Adobe Audition or Audacity. However, I can confirm using Cockos Reaper will also give you Bit-Perfect on macOS.
Reply
Thanks given by: bronan
#24
🔍Apple Logic X (tested with v10.4.4) is also capable to capture Bit-Perfect Smile
Reply
Thanks given by: bronan
#25
I'm trying to follow bronan's guide, but I keep running into an odd problem during recording. 

I set Reaper up as instructed, press record, start playing bronan's DTS Test Kit CD, and it all seems to go fine for about a minute. After that I realise that the time counter on my laserdisc player has overtaken Reaper's track counter. By the end of recording the laserdisc player has played 4:14 but Reaper has only recorded around 3:58, despite the recording starting before the CD. 

My soundcard is a Creative SoundBlaster SB0880 X-FI Titanium. Below are screenshots that I think show all the relevant details for the card and Reaper. 

I'm pretty new to audio hardware so I may be making a really obvious mistake, but if anyone can help set me right I'd really appreciate it.

EDIT: I just noticed that in the Reaper Preferences screenshot I posted the Enabled Inputs show "Not Connected 1" and "Not Connected 2". When recording these read "Digital-In 1" and "Digital-In 2". See third screenshot.


Attached Files Thumbnail(s)
           
Program material is recorded on the other side of this disc...
Reply
Thanks given by:
#26
That's weird, everything looks OK. Perhaps try another protocol besides ASIO?
Reply
Thanks given by: HippieDalek
#27
This is the first time I've tried recording using Reaper. My previous LD PCM rips were done using WaveStudio, it isn't as configurable and is meant to just do what the sound card tells it to do. I didn't see the same problem using WaveStudio but I've also not been able to pass your DTS CD test using that so wanted to try something more accurate.

I'm away from my computer just now, but when I get back I'll try recording from a laserdisc into Reaper to see if I can hear any kind of skipping or speedup, for some reason I didn't think of that earlier.

I'm using ASIO4ALL because Creative's ASIO driver sadly has a problem with this card at 44.1 kHz. I'll experiment with different protocols too. Any you recommend?

Thanks for the help.
Program material is recorded on the other side of this disc...
Reply
Thanks given by:
#28
Started up Reaper again and for some reason this time ASIO4ALL automatically popped up it's settings dialog and I instantly spotted the problem. ASIO4ALL has a setting called "Always Resample 44.1kHz <-> 48kHz". Why this is enabled by default I have no idea, but disabling it allowed me to finally hear that sweet elevator groove from the DTS CD! 

Sorry for troubling you, I really should have spotted this myself, but I'll leave the posts here in case they're useful for anyone else using a similar setup in the future. 

From here on I can happily claim my LD PCM rips are bit-perfect!


Attached Files Thumbnail(s)
   
Program material is recorded on the other side of this disc...
Reply
Thanks given by: bronan
#29
No worries, nice find!
Reply
Thanks given by:
#30
(2019-08-21, 05:26 PM)bendermac Wrote: Btw, You can capture Bit-Perfect with Quicktime 7 Pro on macOS, up to macOS High Sierra -> macOS Catalina will nuke any 32bit apps

- open Midi Setup and select Build-in Input and select 16-bit Integer 44,1kHz (IMPORTANT: You've to do every time after you've rebooted your system)
- open Quicktime 7 Pro -> New Audio Recording -> press Record
- When recording is finished press the record button again
- Export audio (CMD+E) and select Sound to Wave -> Options: Stereo, 16bit, 44,1kHz, Best Quality -> press OK
- Save audio at your preferred location

This was tested using a DTS Audio CD and DTS Parser (Windows App) and the final result is a proper DTS file, hence Bit-Perfect

I never good this too work in Adobe Audition or Audacity. However, I can confirm using Cockos Reaper will also give you Bit-Perfect on macOS.

This will not work in macOS Mojave!

While QuickTime 7 is still working, the OS however no longer lets you gain access to the audio inputs. The OS will ask to use the microphone (include digital in) for QuickTime X but not for 7.

This really sucks!
Reply
Thanks given by:


Possibly Related Threads…
Thread Author Replies Views Last Post
  Go-to method for VHS capture Kreeep 11 4,065 2024-05-24, 03:47 PM
Last Post: bronan
  Locations List of people willing to assist with bit-perfect LD audio capture jerryshadoe 46 43,430 2023-09-03, 01:07 AM
Last Post: onlysleeping23
  Viability of cheap VHS capture Feallan 248 209,370 2021-08-02, 05:51 PM
Last Post: crissrudd4554
  Analog Audio Capture alexp2000 5 3,230 2021-07-23, 09:43 PM
Last Post: zoidberg
  Laserdisc capture - general thread willie1959 69 50,874 2021-03-08, 06:53 PM
Last Post: pipefan413
  Sync problems during analog capture? BusterD 13 10,108 2021-02-19, 07:17 PM
Last Post: BusterD
  4K Capture Card Recommendations. PDB 1 2,767 2021-01-19, 06:20 AM
Last Post: usagi
  multichannel audio capture card ≥ 4 line in spoRv 4 4,635 2020-12-17, 08:02 AM
Last Post: deleted user
Exclamation High-end audio capture cards spoRv 24 24,212 2020-11-17, 11:32 AM
Last Post: pipefan413
  [Help] Best video capture dongle for VHS to Mac Stamper 7 6,867 2020-10-21, 12:23 PM
Last Post: Stamper

Forum Jump:


Users browsing this thread: 1 Guest(s)