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- The files in this directory contain transcriptions of the BellCore DTMF test
- tapes, digitised at 8000 samples per second, using 16 bit signed samples.
- They were transcribed from a brand new copy of the tapes, using a speed
- adjustable cassette player. The test tone at the start of the tapes is
- pretty accurate, and the new tapes should not have had much opportunity to
- stretch. I believe these transcriptions are about as good as the source
- material permits.
- PLEASE NOTE
- -----------
- These transcriptions may be freely used by anyone who has a legitimate
- copy of the original tapes. However, if you don't have a legitimate copy of
- those tapes, you also have no right to use this data. The original tapes are
- the copyright material of BellCore, and they charge over US$200 for a set. I
- doubt they sell enough copies to consider this much of a business. However, it
- is their data, and it is their right to do as they wish with it. Currently I
- see no indication they wish to give it away for free.
- Steve Underwood <steveu@coppice.org>
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