Search found 544 matches

by Fraser
Fri May 25, 2018 10:51 am
Forum: emulators
Topic: hq.uef Specification
Replies: 26
Views: 1939

Re: hq.uef Specification

I have been busy with something but I will be able to start on MakeUEF now.
by Fraser
Mon Dec 04, 2017 1:20 pm
Forum: emulators
Topic: hq.uef Specification
Replies: 26
Views: 1939

Re: hq.uef Specification

I was wondering how you wrote the CRC routine for cassette blocks? The BBC advanced user guide has an assembly routine that you might have derived it from.
by Fraser
Fri Dec 01, 2017 11:42 am
Forum: emulators
Topic: hq.uef Specification
Replies: 26
Views: 1939

Re: hq.uef Specification

If there is a bug with the parity bit, and I think there probably is, then I'll compile a new MakeUEF with it fixed. Unfortunately some emulators that read hq.uef presumably have the bug too.
by Fraser
Fri Dec 01, 2017 11:13 am
Forum: emulators
Topic: hq.uef Specification
Replies: 26
Views: 1939

Re: hq.uef Specification

I have just discovered this thread and I'll have a look at it and some other things that have changed in the last few years. My email address is now fraser.ross8@btinternet.com. Has the site acornpreservation.org not been working for a while now? I don't think the Electrem site has been working eith...
by Fraser
Sat Mar 17, 2012 10:12 am
Forum: off-topic
Topic: adsl cables
Replies: 2
Views: 661

Re: adsl cables

I call a PCI card or an external box and ADSL adapter because they technically can't be called modems. I have a PCI card that connects at faster rates with a straight wired cable. It doesn't seem to affect an adsl adapter/router box that I've got. My wall socket had the back part replaced recently. ...
by Fraser
Fri Mar 16, 2012 3:43 pm
Forum: off-topic
Topic: adsl cables
Replies: 2
Views: 661

adsl cables

I have found that the cables are sometimes wired reversed at one end. I am talking about telephone adsl cables between adsl adapters and a wall socket. I had one that was reversed and it connected at slower speeds that it did after I rewired it straight. It might have something to do with the length...
by Fraser
Sat Jan 14, 2012 6:21 pm
Forum: software: other
Topic: Question about Making Tapes
Replies: 17
Views: 1585

Re: Question about Making Tapes

For number 2 you could download CSW Viewer and follow the guidelines about recording a cassette and then it can be converted to CSW format. MakeUEF will convert CSW to UEF.
by Fraser
Sat Jul 23, 2011 3:35 pm
Forum: off-topic
Topic: USB drives on TVs
Replies: 9
Views: 1612

Re: USB drives on TVs

I formatted the same drive with NTFS and FAT32 and only FAT32 worked. The video formats seem to be quite limited.
by Fraser
Thu Jul 21, 2011 11:21 am
Forum: off-topic
Topic: USB drives on TVs
Replies: 9
Views: 1612

Re: USB drives on TVs

Mines a Sony Bravia. I can't find much information on the supported formats. It seems to be JPEG and RAW pictures, MP3 and a small number of video formats. I updated its firmware yesterday and I thought I'd knackered it! 10 minutes later the panic was over when it came back on.
by Fraser
Tue Jul 19, 2011 10:55 am
Forum: off-topic
Topic: USB drives on TVs
Replies: 9
Views: 1612

USB drives on TVs

Does anyone have much experience of connecting USB drives to TVs? I have a NTFS format drive that wasn't recognised but a FAT USB stick was. I am wondering if they don't usually accept NTFS. There is also limitations with file formats but I need to get a hard drive recognised first.
by Fraser
Mon Jul 04, 2011 7:34 pm
Forum: acorn atom
Topic: Atomstore by Program Power
Replies: 20
Views: 2307

Re: Atomstore by Program Power

Here is the other side. I use Gold Wave but I expect other programs will convert it to WAV. FLAC is a lossless format. I have quite a few other files that I made for the preservation site.
by Fraser
Mon Jul 04, 2011 7:29 pm
Forum: acorn atom
Topic: Atomstore by Program Power
Replies: 20
Views: 2307

Re: Atomstore by Program Power

Here is one side in FLAC format.
by Fraser
Sun Jul 03, 2011 6:43 pm
Forum: acorn atom
Topic: Atomstore by Program Power
Replies: 20
Views: 2307

Re: Atomstore by Program Power

The csw and uef files.
by Fraser
Sun Jul 03, 2011 1:04 pm
Forum: acorn atom
Topic: Atomstore by Program Power
Replies: 20
Views: 2307

Re: Atomstore by Program Power

I would upload the files but I don't know how to use any file hosting sites.
by Fraser
Mon Jun 27, 2011 10:53 am
Forum: acorn atom
Topic: Atomstore by Program Power
Replies: 20
Views: 2307

Re: Atomstore by Program Power

I have made files from Dave's tape of that.
by Fraser
Thu Jun 16, 2011 12:29 pm
Forum: software: classic games
Topic: Can't rejuvenate CSW or UEF
Replies: 21
Views: 1790

Re: Can't rejuvenate CSW or UEF

What exactly is the lubrication? When tapes have a high pitched squeal I place them on a radiator for 10 minutes or whatever it takes. Any higher temperature would melt the plastic.
by Fraser
Sun Jun 12, 2011 12:49 pm
Forum: software: classic games
Topic: Can't rejuvenate CSW or UEF
Replies: 21
Views: 1790

Re: Can't rejuvenate CSW or UEF

You haven't said exactly what file you are converting to WAV. Early tapes did not have the dummy byte in the carrier tone, which is needed for a problem with the BBC hardware. I think Defender is one of them although there might be more than one version and obviously Planetoid is a version of it.
by Fraser
Fri May 06, 2011 9:22 am
Forum: software: other
Topic: Haunted Abbey protection
Replies: 11
Views: 1710

Re: Haunted Abbey protection

I've not looked at it for a while but I remember that some odd stuff is thrown in between data bytes and the actual data is unaffected. B-Em only implemented reading the more important UEF chunks and skipped all the odd stuff. The game loaded on it.
by Fraser
Wed May 04, 2011 5:25 pm
Forum: software: other
Topic: Haunted Abbey protection
Replies: 11
Views: 1710

Haunted Abbey protection

Theres something in this mag about the protection scheme in Haunted Abbey:
ftp://ftp.worldofspectrum.org/pub/sincl ... 600001.jpg
by Fraser
Thu Mar 31, 2011 2:10 pm
Forum: software: other
Topic: UberCassette Multiplatform tape archiving software
Replies: 5
Views: 1137

Re: UberCassette Multiplatform tape archiving software

I have a new version of CSW Viewer at world of spectrum that would probably interest you.

I usually keep the volume quite low now or the hiss inbetween files would be amplified and might start creating readable waves. MakeUEF is mainly designed for accuracy and not to read the worst of recordings.
by Fraser
Sat Mar 12, 2011 10:09 am
Forum: software: other
Topic: UberCassette Multiplatform tape archiving software
Replies: 5
Views: 1137

Re: UberCassette Multiplatform tape archiving software

I don't see much that can't be done already. Accurate CSW and UEF files can already be made with csw.exe by Ramsoft or indirectly with CSW Viewer and MakeUEF makes UEF files. A new version of CSW Viewer will be ready soon.
by Fraser
Sun Jan 30, 2011 12:56 pm
Forum: software & utilities for the pc, mac or unix
Topic: BBC tape & disk copy protection - newbie questions
Replies: 3
Views: 1399

Re: BBC tape & disk copy protection - newbie questions

This is the cassette player and amplifier I use. I used to use a different amplifier but I'm fixing it. This amplifier used to have digital components that shifted waves 90 degrees which is something to avoid. It went faulty and I had it repaired at a Sony Centre and it now has analogue components. ...
by Fraser
Sat Jan 29, 2011 7:48 pm
Forum: software & utilities for the pc, mac or unix
Topic: BBC tape & disk copy protection - newbie questions
Replies: 3
Views: 1399

Re: BBC tape & disk copy protection - newbie questions

I haven't tried anything by those publishers but I would guess they have not done a lot to make the files hard to read. Probably they've used 8O1 or 8E1 data blocks somewhere. You would be best to make CSW files from WAV files by following my guide "How to record WAV files for conversion to CSW...
by Fraser
Sun Jan 09, 2011 12:39 pm
Forum: software: other
Topic: Tape turbo-loader
Replies: 7
Views: 1323

Re: Tape turbo-loader

There is a dummy byte in the leading tone of files which is necessary with all BBCs but not the Electron. You would be asking for trouble by not including it. You could use the standard block format. You could assign say bit 1 of the block flag to indicate compressed data. The compressed data format...
by Fraser
Sun Dec 26, 2010 6:18 pm
Forum: archive requests
Topic: Wanted, uef BBC copy of Video's Revenge by Budgie
Replies: 40
Views: 5109

Re: Wanted, uef BBC copy of Video's Revenge by Budgie

I tried to make a UEF file from the BBC tape but it probably had dropouts. One side has slightly different data to the other which is fairly unusual. Using MakeUEF these switches are needed with the labeled side: -z 96 8N1 -z 98 BBC -z 99 8N1. For the unlabeled side substitute 100 for 99.
by Fraser
Sun Dec 12, 2010 6:09 pm
Forum: off-topic
Topic: speed reduction cable
Replies: 2
Views: 701

speed reduction cable

I was wondering if any electronics people had any opinion on this speed reduction cable. It seems to connect power to 12V and ground to 5V to effectively have 7V power. I was looking at one in a shop and it must have been made wrong because the power was connected to 5V and ground to 12V. I could pr...
by Fraser
Sun Nov 28, 2010 5:47 pm
Forum: hardware
Topic: Rombox and Turbo Driver
Replies: 6
Views: 1093

Re: Rombox and Turbo Driver

I think there is something incompatible with the design of the Rombox. They might have fixed it with later ones.
by Fraser
Sun Nov 28, 2010 2:25 pm
Forum: hardware
Topic: Rombox and Turbo Driver
Replies: 6
Views: 1093

Rombox and Turbo Driver

I have the original Slogger Rombox. It is the one on the cover of the manual at AEW. A Turbo Electron won't start up in Turbo mode with it. Does anyone know what the problem is caused by?
by Fraser
Sun Nov 14, 2010 6:45 pm
Forum: software: classic games
Topic: Chuckie Egg... with more colour!
Replies: 28
Views: 10386

Re: Chuckie Egg... with more colour!

The Spectrum version had to have the lifts and the bird cage yellow to avoid colour attribute clashes. White lifts were probably seen as an improvement. If the cage was another colour the bird would have to be behind the wires.