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DL9RDZ > DSP 11.09.98 20:33l 48 Lines 1691 Bytes #-9677 (0) @ EU
BID : B98OE5XBL027
Read: DG4MLA DG7RO LX2GT DL2NBU DK5RAS GUEST
Subj: Info: PSK31 Linux/SB V0.5
Path: DB0AAB<DB0PV<OE2XOM<OE5XBL
Sent: 980911/1722z @:OE5XBL.#OE5.AUT.EU [Mailbox Braunau JN68PC] BCM1.39tb
From: DL9RDZ @ OE5XBL.#OE5.AUT.EU (Hansi)
To: DSP @ EU
X-BID: B98OE5XBL027
Hello!
Iïve created a new version of my Linux/soundblaster-software for the
narrow-band HF-mode PSK31.
Iïll upload the source code as 7plus to DSP@EU. The file is also available
in the internet at http://home.pages.de/~dl9rdz/hamradio/psk31lx-0.5.tgz
For changes see below. Feedback is highly welcome!
Iïm in Italy from Sept 20 to Okt 2 and Iïll neither read packet nor
internet mail during this period.
73+55 de Hansi, dl9rdz@oe5xbl
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PSK31 for Linux/Soundblaster Version V0.5
Changes V0.4->V0.5
------------------
- On TX->RX switchover, a partly filled buffer of the soundcard wasn't
played, so the DCD-OFF-carrier signal, and sometimes also the end
of the CW ID signal, was cut off.
Fixed by adding a SNDCTL_DSP_SYNC when switching from TX to RX
- On some systems V0.4 didn't compile because of problems with header
files. This should work now.
#include <getopt.h> was removed, #include <termios.h> was added
- Small bug in the handling of a circular buffer fixed (this part of
the code shouldn't be reached anyway)
- Implemented the 256-symbol-encoding used by the Windows-Version of
PSK31, so the full ISO charset, e.g. including the German umlauts,
can be used in the transmission. This feature is not yet tested in
practice, just in loopback mode, so feedback if it works is highly
welcome!
Be aware of the fact that the DOS-Version just use a 128-symbol
charset, so the extend characters can't be decoded on those systems!
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