Avid Pro Audio Community

Avid Pro Audio Community

How to Join & Post  •  Community Terms of Use  •  Help Us Help You

Knowledge Base Search  •  Community Search  •  Learn & Support


Avid Home Page

Go Back   Avid Pro Audio Community > Legacy Products > RTAS & TDM Plug-ins

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-11-2013, 09:49 AM
iain_m iain_m is offline
Member
 
Join Date: Apr 2007
Location: Cardiff, UK
Posts: 136
Default Bug: X-Form replaces clips with distortion

Hi all

Here's a nasty bug with X-Form that writes screeching digital distortion to processed clips.

It's reproducible here with PT 10.3.6 and 10.3.7 under Windows 7 64-bit SP1 and with X-Form v902_71103 AudioSuite.

Steps to reproduce:

1. Enable "Automatically copy files on import" and "convert copied files to session format" in PT preferences.

2. Create blank session with these parameters:
  • Audio file type: WAV
  • Bit depth: 24 bit
  • Interleaved: No
  • Sample rate: 44.1kHz
3. Drag these two audio files from Windows Explorer to the clip list:
https://dl.dropboxusercontent.com/u/...AudioFiles.zip

4. Select both clips in the clip list

5. Open the X-Form plugin from the Audiosuite menu

6. In X-Form, use these settings:
  • Type: Polyphonic
  • Gain: -6dB
  • Range: x8
  • Time shift: 12.50%
  • Pitch: -36 semitones
  • Sensitivity: 5.0
  • AS handle length: 0.00
7. Render the X-Form effect for the two selected clips.

8. Lower your monitor volume.

9. In the clip list, alt-click the processed version of the second clip ("Sound 2-XFrm-00").

Result: the processed clip contains screeching digital distortion.

I haven't reported this directly to Avid. I asked previously whether support fees are refunded if an issue turns out to be a bug, but never got an answer.
__________________
Sound design, audio editing, and instrument programming for Kontakt and MachFive
http://www.iainmorland.net
Reply With Quote
  #2  
Old 08-12-2013, 11:08 PM
mattpete's Avatar
mattpete mattpete is offline
Avid
 
Join Date: Apr 2002
Location: California
Posts: 201
Default Re: Bug: X-Form replaces clips with distortion

Consider it reported.
Thank you for the clear steps to reproduce.

We tried this and didn't get distortion but did hit an error dialog. Do you get distortion every time you follow your steps? What if you use different audio files, such as sine tone generated with Signal Gen?
__________________
Matt Peterson
Avid Audio
Reply With Quote
  #3  
Old 08-16-2013, 05:58 AM
iain_m iain_m is offline
Member
 
Join Date: Apr 2007
Location: Cardiff, UK
Posts: 136
Default Re: Bug: X-Form replaces clips with distortion

Quote:
Originally Posted by mattpete View Post
Consider it reported.
Thank you for the clear steps to reproduce.

We tried this and didn't get distortion but did hit an error dialog. Do you get distortion every time you follow your steps? What if you use different audio files, such as sine tone generated with Signal Gen?
Hi Matt

Thanks for posting and sorry for the slow reply.

I just tried this again using stereo 44.1/24 audio files created with Signal Gen, and no, I didn't get the distortion.

However the issue is repeatable here with stereo 44.1/24 audio files that were previously edited in Sound Forge (both the ones I uploaded earlier, and others I've tried of the same origin).

Obviously within PT all the files are being processed as separate L/R files (because my session format is non-interleaved), so I'm not sure why they produce such different results after being separated into L/R.

I should also add that if I drag my two original files to the timeline and try to apply the same X-Form settings to them in the playlist, rather than the clip list, I get this error:
Quote:
Could not complete your request because Assertion in "..\AS\AS_PlayListCommandBase.cpp", line 1582.
Is that the error message that you saw?

Let me know if you need more info/testing from me.
__________________
Sound design, audio editing, and instrument programming for Kontakt and MachFive
http://www.iainmorland.net
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Exporting Clips as WAVs, clips dont highlight in list gigantorbuzz Pro Tools 10 6 08-05-2013 01:07 PM
iMac27 replaces my HD3 system Oli P Pro Tools TDM Systems (Mac) 8 02-05-2013 01:57 PM
Differences between X-Form Plugin & X-Form Elastic Audio? Mason00 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Win) 0 11-05-2010 08:51 AM
Distortion/crackling clips SteveFireland Pro Tools M-Powered (Win) 1 04-13-2010 04:56 PM
What replaces the ASC VR iank Post - Surround - Video 4 02-24-2004 07:19 AM


All times are GMT -7. The time now is 11:17 PM.


Powered by: vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Limited. Forum Hosted By: URLJet.com