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Software News   Software News : UberCassette V0.02 for ALL Amigalikes!
   posted by Spirantho on 8-Mar-2011 20:28:15 (2635 reads)
I've just uploaded a new archive of my latest project:

UberCassette

It will - one day - do everything to do with dumping cassettes of 8-bit machines. As it stands now V0.02 supports Acorn Electron, BBC, and - of course - Commodore 64, C16/+4 and VIC-20 tapes. It supports raw TAP files as well as binary T64 files for the Commodore machines, and UEF files for Acorns. Just feed it your WAV file - even copy-protected ones - and it'll give you a nice emulator friendly tape file, ready for Vice or whatever.

Read more...


Soon I'll be adding support for other machines, such as Spectrum, Amstrad and anything else I can think of. Kind of like my Catweasel drivers, except on tape.

I've compiled using AmiDevCPP, and made builds for AmigaOS 3, AmigaOS 4, MorphOS, AROS x86, AROS PPC, Linux x86, and Windows. Full POSIX-compliant source is included. It's just a command-line app at the moment.

Any feedback very much appreciated!
    

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DAX 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 8-Mar-2011 22:03:45
#1 ]
Elite Member
Joined: 30-Sep-2009
Posts: 2790
From: Italy

Cool


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klx300r 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 8-Mar-2011 22:31:20
#2 ]
Elite Member
Joined: 4-Mar-2008
Posts: 3514
From: Toronto, Canada

thank !damn cool Ian ..i gotta dig up my old dattasette for my 64

btw, any news on the joystick drivers for CWMK4+ for AOS ?


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TiredofLife 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 8-Mar-2011 22:43:58
#3 ]
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Joined: 6-Jul-2005
Posts: 1648
From: Here

Nice work.


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pavlor 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 8-Mar-2011 23:06:21
#4 ]
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Joined: 10-Jul-2005
Posts: 9081
From: Unknown

Good work!

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Varthall 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 9-Mar-2011 8:25:26
#5 ]
Super Member
Joined: 17-Feb-2004
Posts: 1552
From: Up Rough

Very nice! I have loads of Spectrum tapes I'd like to dump someday, is support for Spectrum tapes and TZX format planned? What about direct audio-in to file support, skipping the WAV file creation and reading? And lastly, does anybody know if the AmigaOne's AC97 or a Soundblaster PCI128 support a 96KHz audio-in sampling rate?

Varthall


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Daedalus 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 9-Mar-2011 8:54:29
#6 ]
Super Member
Joined: 14-Jul-2003
Posts: 1678
From: Glasgow - UK, Irish born

Excellent! What a great piece of software... Any chance it might support Atari tapes though? I have dozens of games for my dead 800XL which I'd like to convert. Tried with limited success with a PC utility, would be great to use the Amiga...


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Spirantho 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 9-Mar-2011 10:35:11
#7 ]
Super Member
Joined: 4-Jun-2004
Posts: 1044
From: Aberystwyth, Wales

That's exactly what this program will be for. Spectrum support is planned Real Soon Now, and Atari cassettes I can do too. I want this to do everything... and because it can use the same wave detection it's just a matter of writing new exporters for the different formats.

As for doing it on the fly... I could do that, yes, but that'd be very non-portable. Maybe I could hook AHI into it if it's fast enough and parse a double-buffered AHI input stream. Hmm...

That's for the future, though. First priority is to get it reading and writing all my tapes!

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g_kraszewski 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 9-Mar-2011 17:29:09
#8 ]
Regular Member
Joined: 3-Sep-2010
Posts: 341
From: Unknown

I guess memory requirements can be lowered a bit. I've analysed the source and found that you first load the whole WAV to memory in LoadData(), then you convert it to raw 8-bit to another memory table. For 20 minutes tape sampling into typical 16-bit WAVE @ 44.1 kHz it will take 100 MB for WAVE + 50 MB for RAW. And there is also a 16 MB global table "gRawCycles".

My advice is to read WAVE file incrementally and convert it to RAW on-the-fly. Then you do not need these 100 MB from the above example. Converting it with 64 kB buffer will not decrease performance. It is also possible to not keep the whole raw data into memory, unless your algorithm needs random access to the whole audio data at the same time.

BTW I've thought about adding Reggae input support to your code. It is MorphOS-specific, so it will be compiled conditionally, but will provide support for over 20 audio formats. Of course it supports incremental decoding, so if your processing algorithm is stream-based or block-based, the second, raw table will be not needed too.


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Spirantho 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 9-Mar-2011 23:22:03
#9 ]
Super Member
Joined: 4-Jun-2004
Posts: 1044
From: Aberystwyth, Wales

Thanks for the feedback - you're absolutely right about the memory footprint, at the moment it's doing it the easy (read: "lazy") way, just for speed of coding. Hence the version number (0.02).

There's absolutely nothing to stop the program using 1KB buffers or similar, except speed. It [/i]is[/i] faster running all within RAM, of course, and most machines have easily enough for this... in fact it's only AmigaOS 3 which is likely to struggle, and even that will probably run on 128MB machines.

I'll probably put in an option for buffer size at some point, but for now it's just a luxury/

New version coming soon, by the way - including the ability to output WAV files! I even managed to load the Exolon TAP file on c64files.org on my C64 today, after using UberCassette. You can even pass in a WAV as an input and output filename and it'll read the file and re-output it using generated waves - good if the original recording is weak but just about readable.

CSW format added now (input and output) too but the generated WAV sounds a bit high-pitch. Will look into that. Still managed to load a Spectrum game ok though! TZX support next.... that'll sort the Spectrum out!

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Spirantho 
Re: UberCassette V0.02 for ALL Amigalikes!
Posted on 16-Mar-2011 19:09:43
#10 ]
Super Member
Joined: 4-Jun-2004
Posts: 1044
From: Aberystwyth, Wales

New version uploaded. :) V0.04 in fact, supporting Spectrum TZX (ROM and Speedlock loaders) and Amstrad, and other improvements.

http://www.retroreview.com/iang/UberCassette/

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