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I have an audio file in WAV format, which supposedly comes from a cassette sound file. Moreover, it contains a BASIC program, but I don't know how to decode it. I have tried to convert the wav file to a tap file, but then I don't know how to convert it to a BASIC file or a text file and I have spent hours searching on the Internet.

If someone could help me I would really appreciate it.

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  • 3
    How did you convert it to a TAP file? Which computer is this file from?
    – wizzwizz4 ♦
    Nov 5, 2019 at 18:32
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    Did you try to run an emulator and load it there? How do you know that the conversion into a TAP file was successful?
    – the busybee
    Nov 5, 2019 at 20:55
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    Is this a different question from the original? If so, please create a new question. This is very confusing as currently written — "I have a tzx file ... I have tried to convert the wav to a tap", then answers on the wav issue.
    – Tommy
    Nov 6, 2019 at 18:24
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    You have modified the question in a way that invalidates the existing answers by changing the premise. I am reverting your edit. As Tommy has said, please ask a new question instead. Here is the version of your question before my rollback.
    – wizzwizz4 ♦
    Nov 7, 2019 at 21:21
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    Looks like this was a clue to an online competition (see El Enigma, derived from original data link) which has now been completed/closed.
    – scruss
    Nov 13, 2019 at 18:21

2 Answers 2

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You need to use OpenMSX, and get the system ROMs for the machine in question. Then run OpenMSX, set the machine to the FS-A1WSX. There's a little menu button at the top left of the OpenMSX window. In there, set your tape to the WAV file. Then:

enter image description here

10 M$ = "E4E8O3G16G32R32G2G4R4O4C8D8E8F8G2G8F8E8F4E8D8E4D8C4"
20 PLAY M$+M$

The listing above is the content of the WAV you linked to, so to be honest you'd be quicker typing it back in.

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  • that's the content of that .wav file?
    – Antonio Gamiz Delgado
    Nov 6, 2019 at 14:38
  • That's the content of that .wav file, unless there's more that one program contained in it, that I don't know.
    – Alan B
    Nov 6, 2019 at 15:15
  • No, that's definitely it.
    – Alan B
    Nov 6, 2019 at 16:41
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The good news is the next few steps are easy.

Most (all?) of the MSX emulators include a "virtual tape" that can open a WAV file. openMSX does for sure. It's right in the instructions for the emulator.

I don't know enough about MSX to know if it stored programs as text or in tokenized format, but in either case, once it is loaded you can use the "virtual printer" to LIST the program to a text file and you're off to the races.

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  • I've installed the emulator, but how do I load the .wav file?
    – Josemi
    Nov 5, 2019 at 22:07
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    I actually think openMSX might be in the minority in handling WAV files — CocoaMSX, which is a Mac-native version of BlueMSX doesn't, and neither does my emulator (but I'm lazy, so don't count that as a major data point). Which is a shame as I have absolutely no idea offhand how to set up openMSX as a real machine. C-BIOS, which it boots by default, can't read tapes.
    – Tommy
    Nov 6, 2019 at 3:17
  • @Josemi Did you read the instructions for the emulator as the answerer suggested?
    – the busybee
    Nov 6, 2019 at 7:24
  • @Josemi - read this part: openmsx.org/manual/user.html#tapewav
    – Maury Markowitz
    Nov 6, 2019 at 15:48

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