audio2tape — Sinclair ZX Spectrum audio to tape file converter
audio2tape [-t type] [-s] [-r] [-k] [-z level] [-c
level] infile outfile
audio2tape converts audio files to ZX Spectrum tape images.
- -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”.
- causes the display of a frequency graph showing the sound levels present
in the audio file. This can be useful when selecting good crossover
- causes any ROM blocks that are recognised to use idealised timing figures
rather than the exact ones found in the audio file.
- 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
- -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.
- -h, --help
- give brief usage help, listing available options.
- -V, --version
- output version information.
- specifies the audio file to be converted. This file can be in any of the
sound formats supported by libaudiofile.
- 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
Fredrick Meunier (email@example.com).