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Old 09 March 2018, 09:46   #21
meynaf
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Originally Posted by daxb View Post
Already tried. Download link doesn't work (and, no, i won't create an account there just for that).


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Already tried. Download link broken.
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Old 09 March 2018, 11:55   #22
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Wow, good work meynaf! I'll definitely give this a whirl.
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Old 09 March 2018, 12:23   #23
jurassicman
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I just download a few flac files... I'll try your program this weekend.
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Old 09 March 2018, 13:34   #24
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Follow this link to find real cool FLAC files
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Old 09 March 2018, 20:30   #25
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Originally Posted by meynaf View Post
Already tried. Download link doesn't work (and, no, i won't create an account there just for that).
Sorry, I've uploaded to TheZone. Hope it works for you and is the correct version.
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Old 09 March 2018, 21:01   #26
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Sorry, I've uploaded to TheZone. Hope it works for you and is the correct version.
Thanks, but unfortunately it does not work. It can encode layer 2 with no problem but layer 1 fails miserably (either crashes 8000000A or writes empty file).
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Old 09 March 2018, 21:34   #27
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Hmm... here it works (A1240 3.1) when I load an AIFF to Ram, Export -> MPG, Check Layer I and hit Start button. After some time it is finished and can be played with mpega for example. Unfortunately I can't upload but maybe someone else can do it? So meynaf can use it.
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Old 10 March 2018, 04:35   #28
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Thomas-rapp also has a flac audio player out for amiga here if anyone cares:

http://thomas-rapp.homepage.t-online.../daplayer.html
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Old 10 March 2018, 09:03   #29
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Originally Posted by meynaf View Post
Btw I'm currently on the lookout for mpeg audio layer 1 files. Layer 3 is of course easy to get and there are a few layer 2 on aminet iirc. But i'd like to support all three in future versions so example files are needed.
MPEG 1 Layer I is not used at all IMHO (practically used and also not directly in DCC as mutated version called PASC) - conformance official bitstreams are available here:
ftp://ftp.tnt.uni-hannover.de/pub/MP...g1/compliance/

btw - may be useful to check this https://www.underbit.com/resources/m...io/compliance/

Last edited by pandy71; 10 March 2018 at 09:14.
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Old 11 March 2018, 23:07   #30
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Player tested today with a few flac files.
I used all the methods and with my setup (blizzard 1260/66) I always got clear sound.
Good job!
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Old 02 June 2018, 07:10   #31
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Pegase makes files audio MPEG-1 Layer 1

http://aminet.net/package/mus/misc/Pegase
http://aminet.net/package/mus/misc/Pegase_src

ADPCM4 is less demanding and has better sound quality than MPEG-1 Layer 1

in the archive DelfAIFF there are sources of players "Amiga" AIFF-ADP4 (DVI/IMA-ADPCM4)
http://aminet.net/package/mus/play/DelfAIFF

[youtube]https://youtu.be/eWYaBq8FXQw[/youtube]
Attached Files
File Type: 7z AudioConvert.7z (10.6 KB, 14 views)
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Old 02 June 2018, 09:48   #32
meynaf
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Finally a program able to encode these layer1 ! (First try ended in 8000000F but hopefully winuae can emulate fpu.)
Thanks.

The goal is to have reference streams for a multi-format player, not really using that format (which i know is useless).
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Old 12 June 2018, 07:00   #33
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AIFF-ADP4 (Amiga ADPCM 4)
Sea of Colour.adp4

AIFF-IMA4 (Apple ADPCM 4)
Sea of Colour.aifc


Last edited by SKOLMAN_MWS; 12 June 2018 at 07:32.
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Old 12 June 2018, 09:11   #34
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Originally Posted by SKOLMAN_MWS View Post
in the archive DelfAIFF there are sources of players "Amiga" AIFF-ADP4 (DVI/IMA-ADPCM4)
http://aminet.net/package/mus/play/DelfAIFF
This package requires Delfina DSP board, i.e. it's useless for me.
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Old 12 June 2018, 09:37   #35
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This package requires Delfina DSP board, i.e. it's useless for me.
I know that the player is for Delfina DSP, but in the archive there is a description of the AIFF-ADP4->PCM16 decoder, which probably anyone who has an concept of programming will understand.
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Old 12 June 2018, 10:31   #36
meynaf
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I know that the player is for Delfina DSP, but in the archive there is a description of the AIFF-ADP4->PCM16 decoder, which probably anyone who has an concept of programming will understand.
In the archive there is only binary and source code. No such thing as "description". And no, I won't decipher all that code just for a format that does not interest me much.
And anyway this format isn't really on the agenda right now. More common formats such as mpeg audio (all layers) have to be done first.

In addition this thread is about a flac player, which perhaps needs extra testing before any other format is implemented.

That said, if YOU have a concept of programming then i could give you the interface data needed to add a format in my program and thus you do it
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Old 13 June 2018, 05:08   #37
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When it comes to lossless compression, the most interesting codec for Amiga is the TTA (True Audio)

"True Audio compresses up to 30% of the original, broadly similar to FLAC and APE. It features a real-time encoding and decoding algorithm"
https://en.m.wikipedia.org/wiki/TTA_(codec)
http://tausoft.org/wiki/True_Audio_Codec_Overview
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Old 13 June 2018, 08:04   #38
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Originally Posted by SKOLMAN_MWS View Post
When it comes to lossless compression, the most interesting codec for Amiga is the TTA (True Audio)

"True Audio compresses up to 30% of the original, broadly similar to FLAC and APE. It features a real-time encoding and decoding algorithm"
https://en.m.wikipedia.org/wiki/TTA_(codec)
http://tausoft.org/wiki/True_Audio_Codec_Overview
It uses similar algorithms than FLAC and thus isn't expected to be any faster.
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Old 27 July 2018, 13:28   #39
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It uses similar algorithms than FLAC and thus isn't expected to be any faster.
TTA vs FLAC

[ Show youtube player ]

Last edited by SKOLMAN_MWS; 27 July 2018 at 14:01.
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Old 27 July 2018, 13:46   #40
meynaf
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Not successful in the other thread, trying it here too ?
What do you expect ?
If it's so easy, write the TTA decoder yourself !
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