MPEG-2 audio playback problem in SF 9 -Sound Forge - PC

Subject:MPEG-2 audio playback problem in SF 9 Posted by: AudioTonik Date:2/7/2008 8:10:28 PM Hi everyone. I have SF 9.0d installed on my DAW and I am having trouble with the audio playback of an MPEG-2 file. I've extracted A / V from a DVD of a project I am working on, but when I try to playback the file in SF the audio playback is strange. It sounds like it's not playing back at the original sample rate! (Audio pitched down a couple of octaves, and of course the A / V synchronization goes into oblivion...) I messed around with the extracted audio's sample rate in SF, but can never really get back to hearing something that is at the exact same "pitch" as the original audio (therefore, the A /V synchronization is average at best of times...) BUT, when I play the exact same file in NERO, everything is running as it should! How come? Can anybody help? Thanks.
Subject:RE: MPEG-2 audio playback problem in SF 9 Reply by: ForumAdmin Date:2/8/2008 6:38:24 AM Which version/build? Have you tried 9.0e yet? What is the reported sample rate in each app? How exactly was the file generated? Same audio device in both apps? Same driver model? J. Message last edited on2/8/2008 7:06:51 AM byForumAdmin.
Subject:RE: MPEG-2 audio playback problem in SF 9 Reply by: AudioTonik Date:2/13/2008 7:52:34 AM Hi there. Thanks for your answer and sorry for being so long to reply... I have a Windows XP SP2-based DAW with the following audio interfaces installed: Digidesign DIGI 002 (Firewire) M-Audio Delta 2496 (PCI) this is my default windows audio device M-Audio Profire lightbridge (Firewire) Direct X version installed is 9.0c (4.09.0000.0904) Softwares (legally bought...) Sound Forge 9.0e / CD Architech 5.2 Sound forge 7 other softs by Cakewalk, digidesign, NI and IK multimedia Nero Ultra 8 (including Nero vision 5.1.0.2) The extracted DVD files are 16 bits / 48 khz (infos from Sound Forge) As I said in my first post, these files play as they should in NERO, but i have audio playback issues. The same problem shows up no matter which audio interface is selected. In nero showtime, the file shows: 192 kbit/s average playback of 4-5 Mbit/s at a frame rate of 23.8/sec In sound forge, I could not find any of the above info.As far as I can understand, it seems that I cannot monitor how the MPG-2 plugin is decoding the file... Thanks for your help.

Subject:MPEG-2 audio playback problem in SF 9

Posted by: AudioTonik

Date:2/7/2008 8:10:28 PM

Hi everyone.

I have SF 9.0d installed on my DAW and I am having trouble with the audio playback of an MPEG-2 file.

I've extracted A / V from a DVD of a project I am working on, but when I try to playback the file in SF the audio playback is strange.

It sounds like it's not playing back at the original sample rate! (Audio pitched down a couple of octaves, and of course the A / V synchronization goes into oblivion...) I messed around with the extracted audio's sample rate in SF, but can never really get back to hearing something that is at the exact same "pitch" as the original audio (therefore, the A /V synchronization is average at best of times...)

BUT, when I play the exact same file in NERO, everything is running as it should! How come?

Can anybody help?

Thanks.

Subject:RE: MPEG-2 audio playback problem in SF 9

Reply by: ForumAdmin

Date:2/8/2008 6:38:24 AM

Which version/build? Have you tried 9.0e yet?
What is the reported sample rate in each app?
How exactly was the file generated?
Same audio device in both apps?
Same driver model?

J.

Message last edited on2/8/2008 7:06:51 AM byForumAdmin.

Subject:RE: MPEG-2 audio playback problem in SF 9

Reply by: AudioTonik

Date:2/13/2008 7:52:34 AM

Hi there.

Thanks for your answer and sorry for being so long to reply...

I have a Windows XP SP2-based DAW with the following audio interfaces installed:

Digidesign DIGI 002 (Firewire)

M-Audio Delta 2496 (PCI) this is my default windows audio device

M-Audio Profire lightbridge (Firewire)

Direct X version installed is 9.0c (4.09.0000.0904)

Softwares (legally bought...)

Sound Forge 9.0e / CD Architech 5.2
Sound forge 7
other softs by Cakewalk, digidesign, NI and IK multimedia

Nero Ultra 8 (including Nero vision 5.1.0.2)

The extracted DVD files are 16 bits / 48 khz (infos from Sound Forge)

As I said in my first post, these files play as they should in NERO, but i have audio playback issues. The same problem shows up no matter which audio interface is selected.

In nero showtime, the file shows:
192 kbit/s average playback of 4-5 Mbit/s at a frame rate of 23.8/sec

In sound forge, I could not find any of the above info.As far as I can understand, it seems that I cannot monitor how the MPG-2 plugin is decoding the file...

Thanks for your help.