Random Clicking. - Have searched :)

For seeking technical help with Digital Performer and/or plug-ins on MacOS.

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This forum is for seeking solutions to technical problems involving Digital Performer and/or plug-ins on MacOS, as well as feature requests, criticisms, comparison to other DAWs.
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tubanick
Posts: 16
Joined: Sat Jul 16, 2005 10:01 pm
Primary DAW OS: Unspecified

Random Clicking. - Have searched :)

Post by tubanick »

Hi all. I'll try to be brief :)

Pretty sure AudioDesk is basically the audio DAW portion of DP, so posted here.

DAW: AD 1.02, 2408 Mk1, 324-PCI, all latest drivers, Mac OS9 G3 500.
App. and audio data on separate drives. I know it's an old rig but it should be ok for:

transferring cassette audio to AudioDesk, then CD.

Spot checking tracks in AD no clicks. Final on CD, clicks.
(this has happened on multitrack projects too)

Edit: upon listening to CD, I compare times to tracks on AD. I then find
the clicks at those times in AD. This is on edited soundbites.


Performance meters: CPU: 20% max. Play/Record Buffers: 40% max.
(IIRC, play buffer "pulses" up to, but not more than, 40%)
Audio Monitor/track fader levels ok. Audio cabling ok.

I have:

- assigned lots of RAM to AD. (memory meter shows WAY low useage)
- adjusted studio size buffers/disk, (in suggested ratio)
- adjusted buffer in PCI-324 window
- tried long passes (~30 min.) or each tune to it's own tracks
- different media (CD/CDRW USB flash drive) for final
- different positions of "firewire" into PCI-324

Trying a different PCI slot is next, but IIRC, I tried that a while back.

Do edits made to track soundbites cause clicking?

The archives suggest that edits could cause timing issues (related to file names?),
and that merging and/or edge editing may help (have to read up on these)
Any pointers on these or other click-causing-ca-ca or pointers would be
greatly appreciated.

Thanks!

Neil.
tubanick
Posts: 16
Joined: Sat Jul 16, 2005 10:01 pm
Primary DAW OS: Unspecified

Re: Random Clicking. - **Likely** solved

Post by tubanick »

I thought problem was buffer/disk settings in hardware setup or studio size but likely not. Was likely some kind of timing issue.

HDD setup was:

- AudioDesk + OS: SCSI HDD's via E100 Ultra SCSI PCI card, slot 1.
- scratch disk: 2 ATA drives, RAID 0, via Sonnet PCI ATA card, slot 2

Clicks due to one/all of these:

- timing issue between two HDD busses
- Softraid RAID s/w conflict and/or RAID array transfer rate (too high for computer
buss speed?)
- busmastering conflict (Ultra SCSI card and PCI-324 on same PCI buss)

Now:

One ATA for AudioDesk/OS, other for scratch disk via Sonnet PCI card. SCSI HDD only for spare boot, but Ultra SCSI card and 324 still on same PCI buss. No real testing done beyond cassette transfer (2 tracks, but long) but clicks seem to be gone.

Neil.
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