audio2tape(1) [redhat man page]
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)
Check Out this Related Man Page
mixerctl(1) User Commands mixerctl(1) NAME
mixerctl - audio mixer control command line application SYNOPSIS
/usr/sbin/mixerctl [-a | -d dev] [-iv] [-e | -o] DESCRIPTION
Some audio devices support the audio mixer functionality. See mixer(7I) for a complete description of the audio mixer. The mixerctl command is used to control the mode of the audio mixer and to get information about the audio mixer and the audio device. See audio(7I) for details. OPTIONS
The following options are supported. If none are specified, option -i is assumed: -a The command applies to all audio devices. -d dev The dev argument specifies an alternate audio control device for the command to use. -e Enables the audio mixer function if the audio device supports it. If supported, the audio mixer may be enabled at any time. The command silently ignores the enable option if the audio mixer is already enabled. -i Prints the audio device type information for the device and indicates whether the audio device uses the audio mixer. If the device does use the audio mixer, this option displays the audio mixer's mode. -o Turns off the audio mixer function if the audio device supports it. If supported, the audio mixer may be turned off if only one process has the device opened with the O_RDWR flag, or, if two different processes have the device opened, one with the O_RDONLY flag and the other with the O_WRONLY flag. (See open(2).) The command silently ignores the disable option if the audio mixer function is already disabled. -v Verbose mode. Prints the audio_info_t structure for the device, along with the device type information. This option implies the -i option. ENVIRONMENT VARIABLES
AUDIODEV If the -d and -a options are not specified, the AUDIODEV environment variable is consulted. If set, AUDIODEV will contain the full path name of the user's default audio device. The default audio device will be converted into a control device, and then used. If the AUDIODEV variable is not set, /dev/audioctl is used. FILES
/dev/audioctl /dev/sound/{0...n}ctl ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |SPARC, x86 | +-----------------------------+-----------------------------+ |Availability |SUNWauda | +-----------------------------+-----------------------------+ |Stability Level |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
audioconvert(1), audioplay(1), audiorecord(1), open(2), attributes(5), usb_ac(7D), audio(7I), audio_support(7I), mixer(7I) SunOS 5.11 12 Mar 2001 mixerctl(1)