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aubreyapple
Joined: 01 Mar 2007
Posts: 10
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 Posted: Tue Jul 02, 2019 4:41 pm Post subject: Amadeus Pro inconsistencies with Apple Lossless |
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Oddly I just tested and regardless of whether I select 32 bit or 16 bit, the files size is identical. Furthermore, the program mediainfo (in MacPorts) reports the bit depth is 32 bits in both cases. Yet another is that when I go to settings, it always defaults to 32 bits. I am wondering if the setting is being ignored? (All if this under 'Save Selection As...')
On the other hand, if I 'Split According to Markers...', it does not ignore the bit setting and mediainfo reports 16bit for 16 bits and 32 bits for 32 bits. However, the preference is not preserved here either. (This is for version 2.5.3).
Now in version 2.6 (an update from Martin, not the release), it is even stranger. Save Selection As... results in not a Lossless file but an AAC LC file in both 16 and 32 bit modes. (Yes, Apple Lossless was selected.)
In Split According to Markers... it correctly does 16 or 32 bits but the preference is not preserved.
It is also interesting that the 32bit m4a is nearly 4x the size of the 16bit one.
It seems that if I really want Apple Lossless in Save Selection As... I need to revert to 2.5.3 as 2.6 does not generate Apple Lossless there. |
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Martin Hairer
Site Admin
Joined: 08 Nov 2006
Posts: 1750
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| Posted: Wed Jul 03, 2019 9:09 pm Post subject: Amadeus Pro inconsistencies with Apple Lossless |
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| Quote: | Now in version 2.6 (an update from Martin, not the release), it is even stranger. Save Selection As... results in not a Lossless file but an AAC LC file in both 16 and 32 bit modes. (Yes, Apple Lossless was selected.)
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I am unable to reproduce this. I followed these steps with version 2.6 (the one at <http://www.hairersoft.com/Downloads/AmadeusPro.zip> which includes a couple of bug fixes, but should be identical to the official version 2.6 as far as this is concerned):
1. Open an Mp3 file.
2. Select "Save As...", choose "m4a", then go to "Options" and select Apple Lossless with 16bit preserved
3. Hit OK and run mediainfo on the resulting file. Output file is 30.7MB and mediainfo reports the audio stream to be ALAC with 16 bits preserved.
4. Select "Save As..." again, this time with 32bit preserved.
5. The resulting file is 82MB and mediainfo reports the audio stream to be ALAC with 32 bits preserved.
I also tried the same with the "iPhone Movie" format instead of m4a with the same result.
This appears to be correct behaviour. The fact that the 32 bit file is more than twice the size of the 16 bit file indicates that the 16 remaining bit essentially contain noise which cannot be compressed. (In particular, this is a hint that preserving 32 bit will not result in any increase in quality whatsoever for this file.)
If you can consistently reproduce a different behaviour, please let me know how.
Regards,
Martin
--
HairerSoft
http://www.hairersoft.com/ |
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aubreyapple
Joined: 01 Mar 2007
Posts: 10
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| Posted: Wed Jul 03, 2019 11:14 pm Post subject: |
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| Notice it is 'Save Selection As...' not 'Save As' which has the problem in 2.6. |
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Martin Hairer
Site Admin
Joined: 08 Nov 2006
Posts: 1750
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| Posted: Sun Jul 07, 2019 9:22 pm Post subject: Amadeus Pro inconsistencies with Apple Lossless |
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Got it, thanks! Yes, I can reproduce the problem now, I'll report back when I found a fix. Best,
Martin
--
HairerSoft
http://www.hairersoft.com/ |
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Martin Hairer
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Posts: 1750
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PrarthnaNarula
Joined: 09 Aug 2019
Posts: 3
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| Posted: Tue Aug 13, 2019 2:36 am Post subject: |
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| he same thing happened to me, also using Audio Hijack. The mp4 file could be selected for opening in Amadeus Pro, but there was nothing in the sound channels. I could open and play the file in iTunes, Quicktime, and VLC. In iTunes, I converted to mp3 and then I could open in Amadeus Pro. If I recorded as an mp3 in Audio Hijack, the file opened properly in Amadeus Pro. I am using version 2.2.2. |
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Martin Hairer
Site Admin
Joined: 08 Nov 2006
Posts: 1750
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| Posted: Tue Aug 13, 2019 12:55 pm Post subject: Amadeus Pro inconsistencies with Apple Lossless |
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Please update to the latest version (2.6.1), I believe that this has been fixed. Regards,
Martin
--
HairerSoft
http://www.hairersoft.com/ |
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