snapconv(1) [debian man page]
snapconv(1) Emulators snapconv(1) NAME
snapconv - Sinclair ZX Spectrum snapshot converter SYNOPSIS
snapconv [ -c ] [ -n ] infile outfile DESCRIPTION
snapconv converts between ZX Spectrum snapshot files. OPTIONS
-c specifies that all data in the output snapshot should be compressed, even if that compression will result in a bigger file than if some data is left uncompressed. This helps compatibility with some buggy programs that can only read entirely compressed .z80 files. -n specifies that the output snapshot should be uncompressed. -f specifies that the A and F and A' and F' registers should be swapped. Version 0.5.0 and older of libspectrum(3) had a bug that resulted in these registers being swapped in SZX snapshots only. Version 0.5.1 and newer of libspectrum(3) automatically recognise these snapshots and correct the problem, but this flag is necessary to fix some snapshots created by development versions only of libspectrum(3) which had the bug fixed, but cannot be distinguished from snapshots containing the bug. infile specifies the snapshot to be converted. This file can be in any of the snapshot formats supported by libspectrum(3). outfile specifies the output snapshot. The format will be determined by the file extension and can be in any of the formats libspectrum(3) supports for output. BUGS
None known. SEE ALSO
fuse(1), fuse-utils(1), libspectrum(3), listbasic(1), snap2tzx(1) The comp.sys.sinclair Spectrum FAQ, at http://www.worldofspectrum.org/faq/index.html. AUTHOR
Philip Kendall (philip-fuse@shadowmagic.org.uk). Version 1.0.0 16th December, 2010 snapconv(1)
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audio2tape(1) Emulators audio2tape(1) NAME
audio2tape - Sinclair ZX Spectrum audio to tape file converter SYNOPSIS
audio2tape [-t type] [-s] [-r] [-k] [-z level] [-c level] infile outfile DESCRIPTION
audio2tape converts audio files to ZX Spectrum tape images. OPTIONS
-t type causes type to be used as the level detection trigger. There are two triggers implemented; the simple trigger just uses a threshold value to convert to a one or zero on output, and the schmitt trigger implements a Schmitt trigger which outputs a less noisy signal, but requires a stronger signal to noise ratio than the simple trigger. The default trigger is "schmitt". -s causes the display of a frequency graph showing the sound levels present in the audio file. This can be useful when selecting good crossover points. -r causes any ROM blocks that are recognised to use idealised timing figures rather than the exact ones found in the audio file. -k causes the tape file that is produced to keep any audio data from the original audio file that isn't recognised. This will allow unsupported loading schemes, encryption tones etc. to be preserved in the file that is produced. -z level causes level to be used as the zero point in the supplied audio file, it allows adjustment for a DC offset in the audio file. The default level is 127 from a range of 0-255. -c level causes level to be used as the Schmitt trigger noise threshold, this reduces the sensitivity to noise in the provided file. The default level is 8 from a range of 0-127. infile specifies the audio file to be converted. This file can be in any of the tape formats supported by libaudiofile. outfile specifies the output tape file. The format will be determined by the file extension and can be in any of the formats libspectrum(3) supports for output. BUGS
None known. SEE ALSO
fuse(1), fuse-utils(1), libspectrum(3), listbasic(1), tapeconv(1), tzxlist(1), snap2tzx(1), tape2wav(1) The comp.sys.sinclair Spectrum FAQ, at http://www.worldofspectrum.org/faq/index.html. AUTHOR
Fredrick Meunier (fredm@spamcop.net). Version 1.0.0 16th December, 2010 audio2tape(1)