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April 13, 2009

Zoom H2 line input

Filed under: archival practices, computer audio, live sound and recording, recording/mastering — Richard L. Hess @ 11:23 pm

The Zoom H2 HandyCorder is perhaps the lowest-cost digital recorder on the market that provides reasonable and useful results. While I have a Sound Devices 722 for my more serious work, I bought the Zoom to test it out to see if it could be part of a simple tape digitization system for archives on a budget who wish to do the work themselves. It does this reasonably well.

As with much equipment–and especially with lower-cost equipment–the performance specifications and the actual operational data is not published. There are reports of the H2 clipping on the line inputs in some of the reviews and it appears that a lack of understanding how the inputs were configured exacerbated that situation.

There is nothing wrong with the line inputs on the H2. BUT there are some caveats: (more…)

February 3, 2008

StoryCorps experience including equipment discussion

My friend Susan Kitchens and her brother took their parents to the StoryCorps recording session in Los Angeles a few weeks ago. She blogged it here. One of the neat things is that between her article and the discussion she and I had in the comments, we have a good handle on most of the equipment that was used in the trailer. It’s a good selection in my opinion and shows how simply good-quality recording systems can be set up. Further discussions from a StoryCorps representative have shown how clever the setup is.

February 2, 2008

Tape recorder bias frequencies

Filed under: cassettes, recording/mastering, reels — Richard L. Hess @ 3:44 pm

The discussion of what bias frequencies were used over time keeps recurring. Special thanks to Jay McKnight of Magnetic Reference Lab, Tom Fine, and Brian Roth for input to this list. I posted this to the ARSC list, but wanted to include it here as well. This knowlege is useful for those who wish to archive the bias along with the audio for future application of time-base-error correction tools such as the Plangent Processes.

In the early days, apparently wire recorders used bias as low as 30-40 kc, but Jay McKnight recalled in the pre-Ampex days, 60 kHz was common.

The Ampex Standard was 100 kc up to the MR-70. (more…)

Aligning a tape recorder

Filed under: archival practices, cassettes, recording/mastering, reels — Richard L. Hess @ 2:18 pm

It seems some people new to tape are confused over how to align a tape recorder. This is the abbreviated version.

If you want to record on a tape recorder (and I do not recommend doing that these days as you’re just generating more tapes that will need to be transferred later) the first thing to do is get the playback correct.

  1. CLEAN the machine. (more…)

January 9, 2008

Using the proper tools…and don’t try this at home!

Filed under: Racal Store 4DS, archival practices, recording/mastering — Richard L. Hess @ 10:10 pm

I didn’t think I needed to write this post, but it appears that someone purchased a Racal Store 4DS Instrumentation Recorder at least partially because I mentioned it, hoping that it would work as a four-track recorder for creating music. (more…)

August 26, 2007

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

Filed under: recording/mastering — Richard L. Hess @ 2:41 pm

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…)

September 27, 2006

Azimuth: Hows and Whys

Filed under: archival practices, education, recording/mastering — Richard L. Hess @ 11:07 am

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…)

March 15, 2006

How to archive recordings — a quick guide to resources on this site

Filed under: archival practices, cassettes, computer audio, digital, recording/mastering, reels — Richard L. Hess @ 2:40 pm

You’ve been asked to digitize recordings in your collection and don’t have any idea where to start. There are several resources on this site which might be of use. 

What I use is shown on my facility page. That’s one of the main reasons it is there. If I’m using it, it’s because I like it or it solves a problem for me. If I’m not using it, either I don’t have an opinion about it, won’t spring for it, or don’t like it. (more…)

March 14, 2006

Analog "Warming up" of sound & the use of obsolete formats in contemporary recordings

Filed under: archival practices, cassettes, digital, recording/mastering, reels — Richard L. Hess @ 11:27 pm

I received a phone call today from someone who wanted my opinion on a Tascam 238 8-track cassette recorder for recording his music.

This was like the person who wanted to know about the DCC recorder for the same purpose yesterday.

People keep hearing that “analog sounds great” or that this or that format “sounds great” and they want to buy in. (more…)

March 8, 2006

When is the 20 kHz limitation an issue? How big an issue?

Filed under: archival practices, recording/mastering — Richard L. Hess @ 12:50 am

The 20 kHz bandwidth of CD audio media may cause truncation of some material. Here is an example of a small amount of energy above 20 kHz in a symphonic recording. It is interesting to note that this is a 7.5 in/s recording done on 1970s prosumer equipment. I’ve said in my presentations for some years, most 7.5 in/s tapes are well-suited to 44.1ks/s 16 bit transfers, but there are exceptions. This shows one. (more…)


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