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Audio Cassette Speed Calibration Test Tape - Free Shipping Worldwide

Audio Cassette Speed Calibration Test Tape - Free Shipping Worldwide
Analogue Media Speed Calibration Test Tape
 
(16 reviews)  

SKU TESTTAPE1-FS
Weight 0.10 lbs
Our price: CAD$19.95
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Brand new test tape for calibrating the speed of your cassette decks.

Specs:
- 440 HZ A tone (for quick check with instrument tuner) (or MIDI note 69)
- 3150 hz tone for setting speed with frequency counter and checking wow and flutter
- Recorded in stereo, not full track

Speed tolerance: 0.16%

Notes
The speed variance to move a half tone from A 440Hz to A# at 466.16 Hz is 5.9%. That's a lot .Most cassette decks should be operating well within half or a third of that range. But if you're doing tape copies you need a much tighter tolerance to avoid cutting off the music or having a huge empty space at the end of the sides, especially on longer tapes of C-50, C-60, and longer 

We have compared the speed of our test tapes against old test tapes from Sony, TEAC, and Nakamichi. Our test tapes play back the 3150 Hz tone with comparable variance as we found with those old test tapes. The variance of our tapes is +- 5 Hz or 0.16%. When adjusting speed your target is 3145 to 3155 Hz. But most of you won't have a frequency counter so we've included a 440HZ A tone to calibrate with any guitar or instrument tuner. You should be able to get within 0.5% using the 440 Hz tone.

If you want to dub your own tapes consider this:

1% speed variance on a 30 minute side is 18 seconds per side
2% speed variance on a 30 minute side is 36 seconds per side
3% speed variance on a 30 minute side is 54 seconds per side 

This item includes free worldwide shipping by the post with a tracking number. Delivery time is usually 2-3 weeks but could be longer. Tracking is not available on shipments within Canada.

Average customer rating:
 
(16 reviews)  

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5 Most useful customer reviews (see all reviews):
Marcel van Houten
Oct 13, 2017
This customer purchased the item at our site.
Ordered this cassette to calibrate a Pioneer cassettedeck that was clearly slowing down all music.
A random YouTube-video helped me understand the idea about using a tape like this. I recommend this video, it's not a very polished effort, but it's also not TOO technical:
https://www.youtube.com/watch?v=60dG35aJPmY

So, in Audacity on my computer I created a 440Hz test-tone (in the menu: Generate > Tone, use the defaults), played it, and played the cassette in the deck, in my case I used the sound from the Phones-out - plugged into the same speakers as my computer.

You have to irritate your family members (or neighbours) here, as you have to play it LOUD to hear the beating of the frequencies.

This is the point were you can adjust the speed on your deck. How and where depends on the deck, and more often than not, you need the service manual to find out how to do it. Check out this site if you need one:
https://www.hifiengine.com/manual-library.shtml

In my case it was a little screw directly on the motor, looking similar to this:
http://probe.com.au/ocart2/image/cache/catalog/product-180/ZTmECatyXc-DSCF5450-500x500.jpg

Of course, this is not a REALLY accurate method, but checking with my own ears, and streaming the same song on Spotify and playing it on a pre-recorded cassette, I'm more than satisfied.
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bob jerome
Feb 19, 2020
This customer purchased the item at our site.
hi this tape work ace in any 4 track head set up
not for any 6 8 track recorders there are space's
where the tape is not recorded i have a tascam 238
8 track you can see the levels are not moving

MRL full track head one's would work better on the 6 8 track recorders

it's a ace tape for the money i am super pleased
with it but there one small thing i had to change
the black parts that push the tape as the tape
was not spooling into the take up reel right
i changed in over for a trans one only a small thing the post was ace and fast £12 uk
all in it's a great deal i can make a full track
one tape tell me where to put the levels
never make a tape yours self a line up with out any ref to go by like on lot of sites this was recorded on a 4 track i know what to look for

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Pasquale Catanzaro
Feb 6, 2020
This customer purchased the item at our site.
Thanks for the excellent tape test. Excellent shipping service. Thanks again from Italy!
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Randy Smith
Jan 5, 2020
This customer purchased the item at our site.
Worked like a charm to calibrate decks A and B of a used Harman/Kardon dual tape deck. I used a guitar tuner app I loaded on a Nintendo DS which has an indicator for tuning to A. Playing against a true A tone and tuning by ear should also work well.
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Marco Castro
Sep 22, 2019
This customer purchased the item at our site.
In my case it was not straightforward to adjust since when starting one of the double decks it plays at 3200 Hz and then slows down to the correct speed, within a few seconds but I think I've got it correctly adjusted since playing both decks at the same time they stop with 15 seconds difference. The pots are difficult to reach and very sensitive. I used Daqarta on PC to adjust and at the same time I aligned both waves, so I presume azimuth is also corrected. Now I'm restoring my old Pioneer CT-606 deck and as this one has a heavy flywheel it should be easier to adjust. Yes the tape works as expected.
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