r***@gmail.com
2017-10-22 17:23:47 UTC
Hi all,
I've packaged together an easy-to-do test for the 23k encoding I've prototyped and have been discussing here. Just type "LOAD" from the BASIC prompt and play this file into the cassette port:
http://levien.com/23k_test.wav
It contains two copies of an image file. If there are bit errors, then you'll see some of the pixels change from the first copy to the second - I see this when the volume is outside the reliable range.
Let me know failure/success, what kind of Apple you have, what your sound output device is, and what range of volumes seem to work.
Many thanks,
Raph
I've packaged together an easy-to-do test for the 23k encoding I've prototyped and have been discussing here. Just type "LOAD" from the BASIC prompt and play this file into the cassette port:
http://levien.com/23k_test.wav
It contains two copies of an image file. If there are bit errors, then you'll see some of the pixels change from the first copy to the second - I see this when the volume is outside the reliable range.
Let me know failure/success, what kind of Apple you have, what your sound output device is, and what range of volumes seem to work.
Many thanks,
Raph