banner
Tape navigation: Home | Tips & Notes | History | Formats & Resources | Projects | Facility | Site Map | Contact

Azimuth: Hows and Whys

Filed under: archival practices,education,matching head to tape,recording/mastering — 2006-09-27 by Richard L. Hess — Last Edit 2013-06-27 by Richard L. Hess

There is a recurring question as to what is the best way to set azimuth for playing a tape. Many people assume that using the test-tape alignment is best. Well, that makes another big assumption: The recorder used a proper test tape alignment. While that can be the case, it usually is not. (more…)


Capturing both directions of a half-track mono tape

Filed under: archival practices,matching head to tape,recording/mastering — 2012-01-06 by Richard L. Hess — Last Edit 2012-01-06 by Richard L. Hess

It is possible to capture both directions of a two-sided half-track mono tape in one pass.

The critical factors are:

  • Azimuth
  • Direction
  • Polarity

(more…)


Playing full-track mono tapes

Filed under: archival practices,matching head to tape — Richard L. Hess — Last Edit 2012-01-06 by Richard L. Hess

About ten years ago, when I transferred the oldest tapes in the United States as part of the Mullin-Palmer collection, my good friend Don Ososke pressured me to use a full-track head for the project. I had started transferring these full-track tapes with a Woelke NAB stereo (two 80 mil (2 mm) tracks) head and recording both channels. When I obtained a Nortronics full-track head, the difference was night-and-day. The full-track reproduction sounded fuller, smoother, and quieter. There were no tracking problems to speak of that would cause azimuth wander large enough to create a “flanging” or “phasing” effect of in-and-out high-frequency loss. (more…)


Playback of NAB 2-track tapes on a DIN Stereo (Butterfly) head

Filed under: archival practices,matching head to tape,reels — 2007-09-12 by Richard L. Hess — Last Edit 2012-01-06 by Richard L. Hess

I received a query from Sweden today asking

I have a Studer machine with butterfly heads with which I’d like to reproduce
tapes recorded with normal two track heads. Theoretically, how much more noise,
in dB, would I get from playing the “empty” part of the tape?

Let’s look at the assumptions.

(more…)


Tape speed, track width, frequency response, and dynamic range

Filed under: matching head to tape,recording/mastering — 2007-08-26 by Richard L. Hess — Last Edit 2012-01-06 by Richard L. Hess

There are complex interactions between tape speed, track width, frequency response, and dynamic range. This article is an attempt to summarize the major influences. (more…)



Tape navigation: Home | Tips & Notes | History | Formats & Resources | Projects | Facility | Site Map | Contact

©2006–2007 Richard L. Hess — Aurora, Ontario, Canada      Contact Richard