playbackspeed -Sound Forge - PC - MAGIX Community Forums Archive

Subject:playbackspeed Posted by: GVP Date:2/12/2002 11:58:13 AM I have not knowingly made any changes in the software settings but when I record audio, the elapsed time is a 1/4 the real time. When I play back old files, they play back at about 1/4 speed. i.e. I just recorded 80 minutes of music and the total time recorded is 19+ minutes. New recordings at the present rate when recorded to CD play back on a CD player like chipmonks. Can any one tell me what theproblem may be??? you can contact me off list at gvp@starband.net or I will check back to this forum for a reply. Thanks Bob Foster
Subject:RE: playbackspeed Reply by: GVP Date:2/13/2002 6:49:04 AM Sad. Now I'm answering my on emails.The problem turned out to be the Delta sound card was set to S/PDF timing instead of internal/external. Now all the latest recordings play back in warp speed and everything else is normal. The hint but not the answer was in the manual.
Subject:RE: playbackspeed Reply by: Iacobus Date:2/14/2002 7:43:05 PM If you're recording via S/PDIF in, then the master clock should indeed be set to "S/PDIF In". If you don't, erratic timing and/or improper sample rates will occur (which would probably explain the whole chipmunk effect). Also, the signal should be displayed as being "Locked" when using S/PDIF in as master clock to indicate a valid S/PDIF signal. If it shows "Unlocked" there's something wrong with the S/PDIF signal. (I know I'm reiterating what the manual says but it doesn't get much simpler than that.) Iacobus
Subject:RE: playbackspeed Reply by: GVP Date:2/15/2002 1:34:46 PM thanks, The problem was that I was not using the SPDIF input but had the master clock set to SPDIF
Subject:RE: playbackspeed Reply by: Rednroll Date:2/15/2002 6:58:21 PM and actually that would have been fine if you had some other device connected to the spdif in of your sound card, but seeing that you didn't then the sound card had no "word clock", so it was free wheelin. Things to remember: When recording in digital audio, remember to set the "clock" to the device the audio is originating from...in this case "Spdif IN". When recording Analog audio, remember to set the clock to "internal", that way it's using it's own internal clock. If you would have had it set to "external" or "spdif" and had a digital device connected to it, like a CD player or DAT player, it then would have used that clock, but you would have to make sure that you were recording at the same sample rate as the DAT or CD player was sending out. regards, Red

Subject:playbackspeed

Posted by: GVP

Date:2/12/2002 11:58:13 AM

I have not knowingly made any changes in the software settings but when I record audio, the elapsed time is a 1/4 the real time. When I play back old files, they play back at about 1/4 speed. i.e. I just recorded 80 minutes of music and the total time recorded is 19+ minutes. New recordings at the present rate when recorded to CD play back on a CD player like chipmonks. Can any one tell me what theproblem may be??? you can contact me off list at gvp@starband.net or I will check back to this forum for a reply. Thanks Bob Foster

Subject:RE: playbackspeed

Reply by: GVP

Date:2/13/2002 6:49:04 AM

Sad. Now I'm answering my on emails.The problem turned out to be the Delta sound card was set to S/PDF timing instead of internal/external. Now all the latest recordings play back in warp speed and everything else is normal. The hint but not the answer was in the manual.

Subject:RE: playbackspeed

Reply by: Iacobus

Date:2/14/2002 7:43:05 PM

If you're recording via S/PDIF in, then the master clock should indeed be set to "S/PDIF In". If you don't, erratic timing and/or improper sample rates will occur (which would probably explain the whole chipmunk effect).

Also, the signal should be displayed as being "Locked" when using S/PDIF in as master clock to indicate a valid S/PDIF signal. If it shows "Unlocked" there's something wrong with the S/PDIF signal. (I know I'm reiterating what the manual says but it doesn't get much simpler than that.)

Iacobus

Subject:RE: playbackspeed

Reply by: GVP

Date:2/15/2002 1:34:46 PM

thanks, The problem was that I was not using the SPDIF input but had the master clock set to SPDIF

Subject:RE: playbackspeed

Reply by: Rednroll

Date:2/15/2002 6:58:21 PM

and actually that would have been fine if you had some other device connected to the spdif in of your sound card, but seeing that you didn't then the sound card had no "word clock", so it was free wheelin.

Things to remember: When recording in digital audio, remember to set the "clock" to the device the audio is originating from...in this case "Spdif IN". When recording Analog audio, remember to set the clock to "internal", that way it's using it's own internal clock. If you would have had it set to "external" or "spdif" and had a digital device connected to it, like a CD player or DAT player, it then would have used that clock, but you would have to make sure that you were recording at the same sample rate as the DAT or CD player was sending out.

regards,
Red