Difference between revisions of "DAB+ script and infrastructure used for Kanal Plus ensemble in Denmark"
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Here's the script by Ulrik Brinck of Kanal Plus for [http://www.wohnort.org/DAB/denmark.html#Local local ensemble in Denmark] | Here's the script by Ulrik Brinck of Kanal Plus for [http://www.wohnort.org/DAB/denmark.html#Local local ensemble in Denmark] | ||
| − | The ensemble consists of | + | The ensemble consists of 9 DAB+ programmes, some of them with DLS. The full set of CRC mmbTools is used with crc-dabplus for DAB+ encoding, crc-dabmux for multiplexing and crc-dabmod for OFDM modulation. |
The hardware setup is made of: | The hardware setup is made of: | ||
| Line 7: | Line 7: | ||
*2 AudioScience ASI5042 soundcards | *2 AudioScience ASI5042 soundcards | ||
*Ettus USRP1 with WBX daughterboard | *Ettus USRP1 with WBX daughterboard | ||
| + | *Power amplifier from Res-Ingenium, Italy | ||
| + | *Cavity filter from Telmec Broadcasting, Italy | ||
| + | *Antenna from vhfteknik.se, Sweden | ||
| + | |||
| + | [[Media:Danish DAB+ grass roots trial (Kanal Plus).pdf|Pictures from the setup]] with PC, amplifier, antenna (pics by Niels Dreijer) | ||
| + | |||
| + | ===Script=== | ||
#!/bin/sh | #!/bin/sh | ||
DABPLUS=crc-dabplus | DABPLUS=crc-dabplus | ||
| + | |||
| + | #First kill any eventual old instances of the software | ||
killall CRC-DabMux | killall CRC-DabMux | ||
| Line 19: | Line 28: | ||
sleep 3 | sleep 3 | ||
| + | |||
| + | #Delete old fifo's and make new ones, just to be sure to avoid problems at startup if e.g. a bit rate has been changed | ||
rm -f fifoer/fifo* | rm -f fifoer/fifo* | ||
| − | for id in | + | for id in 1 2 3 4 5 6 7 8; do |
[ -e fifo$id ] || mkfifo fifoer/fifo$id | [ -e fifo$id ] || mkfifo fifoer/fifo$id | ||
done | done | ||
| + | |||
| + | #Start the multiplexer, modulator and wave player | ||
CRC-DabMux -c 0xE1 -i 0x9101 -L "NivaaDAB" -l "NivaaDAB" \ | CRC-DabMux -c 0xE1 -i 0x9101 -L "NivaaDAB" -l "NivaaDAB" \ | ||
| − | + | -F "diverse/testcd56.dab" -b 56 -S -i 0x9101 -y 0 -L "Forsoegskanal" -l "Forsoeg" -C \ | |
| − | + | -F fifoer/fifo1 -k -b 144 -S -i 0x9102 -y 27 -L "Retro-Radio" -l "Retro" -C \ | |
| − | + | -F fifoer/fifo2 -k -b 88 -S -i 0x9103 -y 11 -L "Rockkanalen" -l "Rockkanl" -C \ | |
| − | + | -F fifoer/fifo3 -k -b 88 -S -i 0x9104 -y 9 -L "US Radio" -l "US Radio" -C \ | |
| − | + | -F fifoer/fifo4 -k -b 88 -S -i 0x9105 -y 9 -L "Humleborg,R.Nord" -l "Hmleborg" -C \ | |
| − | + | -F fifoer/fifo5 -k -b 88 -S -i 0x9106 -y 10 -L "RadioHLR" -l "RadioHLR" -C \ | |
| − | + | -F fifoer/fifo6 -k -b 88 -S -i 0x9107 -y 9 -L "Radio 10FM" -l "10FM" -C \ | |
| − | + | -F fifoer/fifo7 -k -b 48 -S -i 0x9108 -y 9 -L "Interviewkanalen" -l "Intervie" -C \ | |
| + | -F fifoer/fifo8 -k -b 88 -S -i 0x9109 -y 10 -L "Radio Halsnaes" -l "Halsnaes" -C \ | ||
| + | -O fifo:///dev/stdout | \ | ||
| + | crc-dabmod -g2 -r3200000 -c128000000 | \ | ||
| + | mbuffer -m 32m -P 25 | \ | ||
| + | crc-dwap.py -r3200000 -f204640000 -g-14 -u & | ||
sleep 3 | sleep 3 | ||
| + | |||
| + | #Start the encoders | ||
| + | #There are two ASI5042 sound cards, which are identified as hw:2 and hw:3. Each of them have 4 stereo inputs. | ||
$DABPLUS -g -i card://hw:3,0,0 -b 144 -d tcpserver://:49102 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo1 & | $DABPLUS -g -i card://hw:3,0,0 -b 144 -d tcpserver://:49102 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo1 & | ||
| − | $DABPLUS -g -i card://hw:2,0, | + | $DABPLUS -g -i card://hw:2,0,2 -b 88 -d tcpserver://:49103 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo2 & |
$DABPLUS -g -i card://hw:2,0,3 -b 88 -d tcpserver://:49104 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo3 & | $DABPLUS -g -i card://hw:2,0,3 -b 88 -d tcpserver://:49104 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo3 & | ||
| + | $DABPLUS -g -i card://hw:3,0,1 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo4 & | ||
| + | $DABPLUS -g -i card://hw:3,0,2 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo5 & | ||
| + | $DABPLUS -g -i card://hw:3,0,3 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo6 & | ||
| + | $DABPLUS -g -i card://hw:2,0,1 -b 48 -d tcpserver://:49108 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo7 & | ||
| + | $DABPLUS -g -i card://hw:2,0,0 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo8 & | ||
wait | wait | ||
Latest revision as of 16:02, 24 February 2012
Here's the script by Ulrik Brinck of Kanal Plus for local ensemble in Denmark
The ensemble consists of 9 DAB+ programmes, some of them with DLS. The full set of CRC mmbTools is used with crc-dabplus for DAB+ encoding, crc-dabmux for multiplexing and crc-dabmod for OFDM modulation.
The hardware setup is made of:
- Intel Core i7-2600 4x3.40Ghz PC running Ubuntu Desktop 11.04, 32 bit version
- 2 AudioScience ASI5042 soundcards
- Ettus USRP1 with WBX daughterboard
- Power amplifier from Res-Ingenium, Italy
- Cavity filter from Telmec Broadcasting, Italy
- Antenna from vhfteknik.se, Sweden
Pictures from the setup with PC, amplifier, antenna (pics by Niels Dreijer)
Script
#!/bin/sh
DABPLUS=crc-dabplus
#First kill any eventual old instances of the software
killall CRC-DabMux
killall CRC-DabMod
killall CRC-Dwap.py
killall $DABPLUS
killall mbuffer
sleep 3
#Delete old fifo's and make new ones, just to be sure to avoid problems at startup if e.g. a bit rate has been changed
rm -f fifoer/fifo*
for id in 1 2 3 4 5 6 7 8; do
[ -e fifo$id ] || mkfifo fifoer/fifo$id
done
#Start the multiplexer, modulator and wave player
CRC-DabMux -c 0xE1 -i 0x9101 -L "NivaaDAB" -l "NivaaDAB" \
-F "diverse/testcd56.dab" -b 56 -S -i 0x9101 -y 0 -L "Forsoegskanal" -l "Forsoeg" -C \
-F fifoer/fifo1 -k -b 144 -S -i 0x9102 -y 27 -L "Retro-Radio" -l "Retro" -C \
-F fifoer/fifo2 -k -b 88 -S -i 0x9103 -y 11 -L "Rockkanalen" -l "Rockkanl" -C \
-F fifoer/fifo3 -k -b 88 -S -i 0x9104 -y 9 -L "US Radio" -l "US Radio" -C \
-F fifoer/fifo4 -k -b 88 -S -i 0x9105 -y 9 -L "Humleborg,R.Nord" -l "Hmleborg" -C \
-F fifoer/fifo5 -k -b 88 -S -i 0x9106 -y 10 -L "RadioHLR" -l "RadioHLR" -C \
-F fifoer/fifo6 -k -b 88 -S -i 0x9107 -y 9 -L "Radio 10FM" -l "10FM" -C \
-F fifoer/fifo7 -k -b 48 -S -i 0x9108 -y 9 -L "Interviewkanalen" -l "Intervie" -C \
-F fifoer/fifo8 -k -b 88 -S -i 0x9109 -y 10 -L "Radio Halsnaes" -l "Halsnaes" -C \
-O fifo:///dev/stdout | \
crc-dabmod -g2 -r3200000 -c128000000 | \
mbuffer -m 32m -P 25 | \
crc-dwap.py -r3200000 -f204640000 -g-14 -u &
sleep 3
#Start the encoders
#There are two ASI5042 sound cards, which are identified as hw:2 and hw:3. Each of them have 4 stereo inputs.
$DABPLUS -g -i card://hw:3,0,0 -b 144 -d tcpserver://:49102 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo1 &
$DABPLUS -g -i card://hw:2,0,2 -b 88 -d tcpserver://:49103 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo2 &
$DABPLUS -g -i card://hw:2,0,3 -b 88 -d tcpserver://:49104 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo3 &
$DABPLUS -g -i card://hw:3,0,1 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo4 &
$DABPLUS -g -i card://hw:3,0,2 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo5 &
$DABPLUS -g -i card://hw:3,0,3 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo6 &
$DABPLUS -g -i card://hw:2,0,1 -b 48 -d tcpserver://:49108 -p 28 -t dls | mbuffer -m 100k -P 100 > fifoer/fifo7 &
$DABPLUS -g -i card://hw:2,0,0 -b 88 | mbuffer -m 100k -P 100 > fifoer/fifo8 &
wait
