Created by Jean-Luc Deltombe (LX3JL) on 09/07/2017.
Copyright © 2017 Jean-Luc Deltombe (LX3JL). All rights reserved.
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This file is part of ambed.
xlxd is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
xlxd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
This version of ambed is compatible with:
- DF2ET's AMBE3003USB opensource device (https://github.com/phl0/AMBE3003USB)
- LX3JL's USB-3006 opensource device (https://github.com/lx3jl/usb-3006)
- DVSI's USB-3000 device
- DVSI's USB-3003 device
- DVSI's USB-3012 device
- NWDR's ThumbDV device
- NWDR's ThumbDV-3 device
- DVMEGA AMBE3000 device
- DVMEGA AMBE3003 device
- TEAM6160 AMBE3000 device Available transcoding channels per device:
device DMR->DSTAR DSTAR->DMR Nb Of concurrent channels
-------------------------------------------------------------------------------------------------
3000(pair) 1 1 2
3003 1 1 2
3003(pair) 3 3 4
3003-3000(pair) 2 2 4
3006 3 3 6
3012 6 6 12
Multiple devices can be used at the same time. You need to use 3000 by pairs or paired with a 3003 Do not to use USB hubs as they have proven making system behaviour unreliable.
- Installation of FTDI drivers Download from FTDI web site the latest D2XX driver package http://www.ftdichip.com/Drivers/D2XX.htm Follow FTDI provided documentation for installation and testing of the drivers. For macchine x86 x64
# wget http://www.ftdichip.com/Drivers/D2XX/Linux/libftd2xx-i386-1.4.8.gz
# wget http://www.ftdichip.com/Drivers/D2XX/Linux/libftd2xx-x86_64-1.4.8.gz
For raspberry ARMv6 ARMv7
# wget http://www.ftdichip.com/Drivers/D2XX/Linux/libftd2xx-arm-v6-hf-1.4.8.gz
# wget http://www.ftdichip.com/Drivers/D2XX/Linux/libftd2xx-arm-v7-hf-1.4.8.gz
Extract files
# tar xfvz libftd2xx-XXX-1.4.8.tgz
# cd release/build
# cp libftd2xx.* /usr/local/lib
# chmod 0755 /usr/local/lib/libftd2xx.so.1.4.8
# ln -sf /usr/local/lib/libftd2xx.so.1.4.8 /usr/local/lib/libftd2xx.s
- installation of g++ compiler
# apt-get install build-essential
Only Debian 7
# apt-get install g++-4.7
- download and compile ambed
# git clone https://github.com/lucamarche-iz1mlt/xlx_ambed.git
# cd xlx_ambed
# make clean
# make
# make install
Remove module kernel
# rmmod ftdi_sio
# rmmod usbserial
- configuring ambed startup service
# cp -r ~/xlx_ambed/systemd/ambed.* /lib/systemd/system/
Edit file ambed.service for change IP if xlxd run other PC
N.B If ambed is running on same machine than xlxd, use default 127.0.0.1
otherwise use the machine own IPs
# pico /lib/systemd/system/ambed.service
Update sevice list
# systemctl daemon-reload
Enable service autostart
# systemctl enable ambed.timer
- running ambed note: Due to specific FTDI driver implementation, ambed must be running with root privilege, and cannot be run as a daemon. So ambed will display the information and error messages in the terminal it has been started from Command of start/stop/restart/status service
# service ambed start
# service ambed stop
# service ambed restart
# service ambed status
To see the correct operation type
# screen -r ambed
In main.h find all parameter to set AMBE end conettion UDP.
#define NB_MAX_STREAMS 26
This parameter defines the number of UDP communication active at the same time. if I have an ambe board with 4 channels, the streaming streams in the counter will be channel / 2, then 2 and the UDP ports used will be 10101 and 10102. It is useful if you do not want to open too many doors and only have the necessary.
// Transcoder server --------------------------------------------
#define TRANSCODER_PORT 10100 // UDP port
#define TRANSCODER_KEEPALIVE_PERIOD 2 // in seconds
#define TRANSCODER_KEEPALIVE_TIMEOUT (TRANSCODER_KEEPALIVE_PERIOD + 1) // in seconds
TRANSCODER_PORT should not be changed. TRANSCODER_KEEPALIVE_PERIOD can be modified, but be careful that it is also the same on xlxd. TRANSCODER_KEEPALIVE_TIMEOUT end of connection time.
// Transcoding speech gains
#define CODECGAIN_AMBEPLUS -10 // in dB
#define CODECGAIN_AMBE2PLUS +10 // in dB
CODECGAIN_AMBEPLUS and CODECGAIN_AMBE2PLUS are the gain levels, it can be useful to vary them if there are differences between AMBE input and output.
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