DAB/DAB+ encoding - Revision history

Hb9egm: /* DAB+ audio encoding with FDK-AAC-DABplus */

2017-02-06T12:00:14Z

DAB+ audio encoding with FDK-AAC-DABplus

2016-09-16T12:10:25Z

DAB+ audio encoding with FDK-AAC-DABplus

2016-09-16T12:10:15Z

2015-02-03T19:08:41Z

2014-11-27T20:16:38Z

2014-11-27T20:16:15Z

2014-01-31T09:22:41Z

2013-11-06T09:37:22Z

2013-09-11T17:04:44Z

add fdk-dabplus

2011-12-28T23:53:00Z

Using toolame with Jack

@@ Line 3: / Line 3: @@
 ==DAB+ encoding==
-===DAB+ audio encoding with FDK-AAC-DABplus===
+===DAB+ audio encoding with ODR-AudioEnc===
 '''[[ODR-AudioEnc]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.

@@ Line 4: / Line 4: @@
 ===DAB+ audio encoding with FDK-AAC-DABplus===
-'''[[ODR-DabEnc]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
+'''[[ODR-AudioEnc]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
 The ZeroMQ output can be used in combination with the ODR-DabMux ZMQ input. This setup makes sense for a remote encoder (e.g. at the programme originator), and therefore the example given uses an alsa input:

@@ Line 4: / Line 4: @@
 ===DAB+ audio encoding with FDK-AAC-DABplus===
-'''[[FDK-AAC-DABplus]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
+'''[[ODR-DabEnc]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
 The ZeroMQ output can be used in combination with the ODR-DabMux ZMQ input. This setup makes sense for a remote encoder (e.g. at the programme originator), and therefore the example given uses an alsa input:
@@ Line 12: / Line 12: @@
   DST="tcp://your.dabmux.example.com:9000"
-  dabplus-enc -d $ALSASRC -r 32000 -b $BITRATE -o $DST -l
+  odr-audioenc -d $ALSASRC -r 32000 -b $BITRATE -o $DST -l
 A JACK input can also be used instead of ALSA, using the -j=name option.

@@ Line 3: / Line 3: @@
 ==DAB+ encoding==
-===DAB+ audio encoding with fdk-aac-dabplus===
+===DAB+ audio encoding with FDK-AAC-DABplus===
-'''[[fdk-aac-dabplus]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
+'''[[FDK-AAC-DABplus]]''' HE-AAC encoder (DAB+), originally developed by Fraunhofer Institute, open source version from android tree.
 The ZeroMQ output can be used in combination with the ODR-DabMux ZMQ input. This setup makes sense for a remote encoder (e.g. at the programme originator), and therefore the example given uses an alsa input:

@@ Line 2: / Line 2: @@
 ==DAB+ encoding==
 ===DAB+ audio encoding with fdk-aac-dabplus===
@@ Line 29: / Line 22: @@
   aac-enc-dabplus -b 72 -f raw -c 2 -r 48000 -i /dev/stdin -o /dev/stdout 2>/dev/null | \
   mbuffer -q -m 100k -P 100 -s 1080 > output_fifo

@@ Line 8: / Line 8: @@
   crc-dabplus -i souphttpsrc://location=http://maxxima.mine.nu:8000 -g -m -c 2 -b 48 -o file:///dev/stdout |mbuffer -m 100k -P 100  >output_fifo
-===DAB+ audio encoding with fdk-aac-dabplus-zmq===
+The ZeroMQ output can be used in combination with the ODR-DabMux ZMQ input. This setup makes sense for a remote encoder (e.g. at the programme originator), and therefore the example given uses an alsa input:
   ALSASRC="default"
@@ Line 24: / Line 19: @@
   DST="tcp://your.dabmux.example.com:9000"
-  sox -t alsa $ALSASRC -b 16 -t raw - rate 48k channels 2 | \
+  dabplus-enc -d $ALSASRC -r 32000 -b $BITRATE -o $DST -l
-    ../fdk-aac-dabplus/aac-enc-dabplus-zmq \
-    -i /dev/stdin -b $BITRATE -f raw -a -o $DST
+A JACK input can also be used instead of ALSA, using the -j=name option.
-====jack input====
+====CRC-DABPLUS with JACK input====
 crc-dabplus uses Gstreamer for input/output.
@@ Line 66: / Line 67: @@
 *'''[[toolame]]''' MPEG-Layer II encoder (DAB)
-====Using toolame with Jack====
+====Using toolame with JACK====
 Toolame doesn't support jack by default, we use arecord with ALSA emulation to get the raw PCM stream. See [[Mapping of jack source to ALSA]] for instructions. It is a dirty workaround, it is foreseen to find a better way in the future for example by modifying toolame to support jack:
@@ Line 75: / Line 76: @@
   jack-stdout system:capture_1 system:capture_2 |toolame -s 48 -D 4 -b 192 /dev/stdin ./3.ff

← Older revision		Revision as of 09:22, 31 January 2014
Line 15:		Line 15:
	aac-enc-dabplus -b 72 -f raw -c 2 -r 48000 -i /dev/stdin -o /dev/stdout 2>/dev/null \| \		aac-enc-dabplus -b 72 -f raw -c 2 -r 48000 -i /dev/stdin -o /dev/stdout 2>/dev/null \| \
	mbuffer -q -m 100k -P 100 -s 1080 > output_fifo		mbuffer -q -m 100k -P 100 -s 1080 > output_fifo
		+
		+
		+	===DAB+ audio encoding with fdk-aac-dabplus-zmq===
		+	* The ZeroMQ variant can be used in combination with the dabmux ZMQ input. This setup makes sense for a remote encoder (e.g. at the programme originator), and therefore the example given uses an alsa input:
		+
		+	ALSASRC="default"
		+	BITRATE=64
		+	DST="tcp://your.dabmux.example.com:9000"
		+
		+	sox -t alsa $ALSASRC -b 16 -t raw - rate 48k channels 2 \| \
		+	../fdk-aac-dabplus/aac-enc-dabplus-zmq \
		+	-i /dev/stdin -b $BITRATE -f raw -a -o $DST
		+

@@ Line 1: / Line 1: @@
 Encoding the sound to [[wikipedia:MPEG-1 Audio Layer II|MPEG-2 Layer II]] for DAB, [[wikipedia:High-Efficiency Advanced Audio Coding|MPEG-4 HE-AACv2]] for DAB+ or video in MPEG-4 H.264 for T-DMB before feeding it to the multiplexer.
 ==DAB+ encoding==
@@ Line 69: / Line 47: @@
   mplayer -ao jack http://maxxima.mine.nu:8000

@@ Line 11: / Line 11: @@
 Example:
   arecord -t raw -f S16_LE -c 2 -r 48000 -D jackplug |toolame -s 48 -D 4 -b 128 /dev/stdin ./1.ff
 ====toolame modified for Jack input (BETA)====