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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 10 |
1 files changed, 3 insertions, 7 deletions
@@ -1,7 +1,7 @@ fdk-aac-dabplus Package ======================= -This package contains several tools that use the standalone library +This package contains an DAB+ encoder that uses the standalone library of the Fraunhofer FDK AAC code from Android, patched for 960-transform to do DAB+ broadcast encoding. @@ -69,7 +69,6 @@ input on port 9000. AAC encoder configuration ------------------------- - By default, when not overridden by the --aaclc, --sbr or --ps options, the encoder is configured according to bitrate and number of channels. @@ -82,7 +81,6 @@ and higher are using AAC-LC. Scenario 1 ---------- - Live Stream from ALSA sound card at 32kHz, with ZMQ output for ODR-DabMux: dabplus-enc -d $ALSASRC -c 2 -r 32000 -b $BITRATE -o $DST -l @@ -99,7 +97,6 @@ High occurrence of these will lead to audible artifacts. Scenario 2 ---------- - Play some local audio source from a file, with ZMQ output for ODR-DabMux. The problem with playing a file is that *dabplus-enc* cannot directly be used, because ODR-DabMux does not back-pressure the encoder, which will therefore encode much faster than realtime. @@ -127,7 +124,6 @@ Scenario 3 Live Stream encoding and preparing for DAB muxer, with ZMQ output, at 32kHz, using sox. This illustrates the fifo input over standard input of *dabplus-enc*. - sox -t alsa $ALSASRC -b 16 -t raw - rate 32k channels 2 | \ dabplus-enc -r 32000 -l \ -i - -b $BITRATE -f raw -o $DST -p 53 @@ -209,9 +205,9 @@ working with some receivers, 23 and 26 appear to be broken. Known Limitations ----------------- - *mot-encoder* encodes slides in a 10 second interval, which is not linked -to the rate at which the encoder reads the PAD data. +to the rate at which the encoder reads the PAD data. It also doesn't prioritise +DLS transmission over Slides. Some receivers did not decode audio anymore between v0.3.0 and v0.5.0, because of a change implemented to get PAD to work. The change was subsequently reverted in |