Q: I am looking for a book or a web page that I can find musical formulas on, like how many repeats in milliseconds you need for a certain BPM or what frequencies will sync to certain BPMs on filters and flangers. Got any suggestions?

A: We are not aware of any books on the subject, however, here is what you need to get started: 60,000 divided by the beats per minute will give you the number of milliseconds for any quarter note. You can then divide that number to get any other note value. Here are a couple of examples:

    BPM = 120, 60,000÷120 = 500ms, so 1/4 note = 500ms, 1/8 note = 250ms, 1/16 note = 125ms, and so on.

    BPM = 145, 60,000÷145 = 413.793, so 1/4 note = 413.793ms, 1/8 note = 206.896ms, 1/16 note = 103.448ms and so on.

See? All you really need to know is the right math. Hope this helps you out.

Q: When I burn audio CDs using Adaptec's Toast, I sometimes get an error message that says “Lead-in or Lead-out failed to be written”, yet the CD sounds fine and all the tracks play. What's up here?

A: Lead-in / lead-out messages are generally related to the media. Try a different brand of recordable CD. Check with your CD Burner’s manufacturer for recommendations. Make sure you're running the newest version of Toast (version 3.5.6 as of this writing). Call us — we have the upgrade here, or check out www.adaptec.com.

There can also be an issue with your hardware, so it’s probably a good idea to check with your CD burner’s manufacturer to see if there's a firmware update. Finally, of course, there’s SCSI voodoo: Try disconnecting other SCSI devices from your chain, and burning a CD like that. Sometimes other SCSI devices and termination issues can cause conflicts and errors. Good luck.

Q: Can I put a CD-R on my ultrawide SCSI chain? If so, will it hurt the performance?

A: Yes you can safely add a CD recorder to your setup. Glyph now has an active terminator called the High 9 which terminates the extra 18 pins to allow a 50 pin scsi device to be connected to the ultrawide chain. Glyph also claims that this prevents the 50 pin devices from hurting the performance of your ultrawide devices. More good news: We have them in stock.

Q: Can you give us the correct button pushes for ADATs to determine how much time is on the recorder? How about for TASCAM multitracks?

A: For ADATs (with the exception of the M20) you can check the hours by pushing the “Set Locate” and "Stop" buttons at the same time. For the M20 it’s the “Peak Clear” and “Stop” buttons.

The DA88 and DA38 procedure is to hold the “STOP and PLAY” on power up for head play hours (d.), and “STOP and FFWD” on power up for search hours (d.s.). Cleaning cycles (cle.) should also be considered for head wear and it is found when entering the cleaning mode.