Opened 4 years ago
Last modified 4 years ago
#8720 reopened enhancement
Support for TETRA audio
Reported by: | xd009642 | Owned by: | |
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Priority: | wish | Component: | undetermined |
Version: | git-master | Keywords: | |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
So I had a look in the documentation and searched around and couldn't see any mention about ffmpeg support for TETRA encoded audio and I have a collection of TETRA encoded bit streams that I need to decode and transcode (unfortunately none I can share).
I've attached a link to a page about the standard and a repo with a decoder
https://www.sigidwiki.com/wiki/Terrestrial_Trunked_Radio_(TETRA)
https://gitlab.com/larryth/tetra-kit
Attachments (2)
Change History (10)
comment:1 by , 4 years ago
comment:2 by , 4 years ago
Resolution: | → needs_more_info |
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Status: | new → closed |
comment:3 by , 4 years ago
So I'm currently trying to find samples myself for testing as the client unfortunately can't share the files with me either. If I manage to find some could this issue be reopened?
comment:4 by , 4 years ago
Type: | enhancement → defect |
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Please do not reopen this ticket unless samples are provided.
comment:5 by , 4 years ago
@cehoyos I've attached a file I found here https://github.com/sq5bpf/telive which makes use of the ESTI reference encoder/decoder. However, the ESTI reference contains the notice that "The information contained herein is the property of ETSI and no part may be reproduced or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied". So you might not want to look at the code itself for reference I'm unsure of the relevant intellectual property laws.
telive repo also have a file bin/tplay for playing the audio file (using the compiled ETSI artefacts).
I'll leave it up to you if this is enough to reopen the ticket. I can try to provide more information as I find it.
comment:7 by , 4 years ago
I took the output 8KHz s16le samples and encoded it as a wav and attached it
comment:8 by , 4 years ago
Priority: | normal → wish |
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Resolution: | needs_more_info |
Status: | closed → reopened |
Type: | defect → enhancement |
Version: | unspecified → git-master |
I suggest to close this ticket as there are no will to share samples at all.