INTERACT FORUM
More => Old Versions => JRiver Media Center 28 for Linux => Topic started by: geier22 on February 25, 2022, 03:58:22 am
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The conversion of a -.wav file with Media Center 28 results in a significantly larger file than the original for all lossless formats.
I rarely convert music files. Previously, this had always delivered the desired result.
For comparison, the same wav file with on-board resources (Xfca)
converted.
As an example, the conversion with MC 28.0.103 in 4 different lossless formats. and 2 (xcfa) with on-board resources
ls -lhgG /home/hans/Musik/wav_to_lossless/
insgesamt 2,3G
-rw-r--r-- 1 667M 24. Feb 19:08 The_Heart_Of_Our_Nearest_Star_Part_II.aif
-rw-r--r-- 1 359M 24. Feb 19:01 The_Heart_Of_Our_Nearest_Star_Part_II.ape
-rw-r--r-- 1 414M 25. Feb 10:39 The_Heart_Of_Our_Nearest_Star_Part_II.flac
-rw-r--r-- 1 405M 24. Feb 19:03 The_Heart_Of_Our_Nearest_Star_Part_II.m4a
-rwxrw-rw- 1 223M 12. Mär 2019 The_Heart_Of_Our_Nearest_Star_Part_II.wav
-rw-r--r-- 1 134M 25. Feb 10:25 'The_Heart_Of_Our_Nearest_Star_Part_II (xcfa).ape'
-rw-r--r-- 1 136M 25. Feb 10:25 'The_Heart_Of_Our_Nearest_Star_Part_II (xcfa).flac'
What's going on there ?
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Isn't this related to your bitdepth settings? (8,16,24,32,64 bit)
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Indeed I would assume you have some settings that either increase the bitdepth, or maybe DSP that increases the sample rate, which would result in a bigger file.
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ok - I can't remember ordering anything there, but the bitdepth was set to 24 bit (wav file is 16 bit). This reduced the file size. -- Thanks
it has now become very complicated to reach the settings, since this is only partially possible in the convert dialog. You now have to use the options for compression, for example.
But there is still another problem I can't solve;
Here's the data
1: wav file
2: Encoded with MC (Compression: 8 / Bitdepth: Auto)
3: Encoded with on-board resources
Where does the very different file size come from? Or where can I change that?
E.g.: Sampling rate : 44.1 kHz vs: 88.2 kHz (MC)
Audio
Format : PCM
Format settings : Little / Signed
Codec ID : 1
Duration : 21 min 57 s
Bit rate mode : Constant
Bit rate : 1 411.2 kb/s
Channel(s) : 2 channels
Sampling rate : 44.1 kHz
Bit depth : 16 bits
Stream size : 222 MiB (100%)
Audio
Format : FLAC
Format/Info : Free Lossless Audio Codec
Duration : 21 min 57 s
Bit rate mode : Variable
Bit rate : 1 219 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 88.2 kHz
Bit depth : 16 bits
Compression mode : Lossless
Replay gain : -7.65 dB
Replay gain peak : 0.988553
Stream size : 192 MiB (99%)
Writing library : libFLAC 1.3.3 (UTC 2019-08-04)
HDCD : Yes
Audio
Format : FLAC
Format/Info : Free Lossless Audio Codec
Duration : 21 min 57 s
Bit rate mode : Variable
Bit rate : 863 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Bit depth : 16 bits
Compression mode : Lossless
Stream size : 136 MiB (100%)
Writing library : libFLAC 1.3.3 (UTC 2019-08-04)
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Flac size depends on 4 parameters:
- sample rate
- bitdepth
- compression.
- overhead
If you need more info on flac, or what everything means, use google (https://xiph.org/flac/format.html).
Depending on the used program you can control 1, 2 or all 3 parameters. In JRiver only 1 option can be controlled under options at audio conversions.
So using different settings in different programs or even different libraries, will result in different sizes.
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Depending on the used program you can control 1, 2 or all 3 parameters. In JRiver only 1 option can be controlled under options at audio conversions.
Bitdepth can be set in conversion options, sample rate can be set via DSP in conversion options, and the compression level (and tag structures) can be set in the encoder settings.
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euh, aren't you mixing file conversion and audio conversion during playback?
Question was convert file from wav to flac, not playback
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euh, aren't you mixing file conversion and audio conversion during playback?
Question was convert file from wav to flac, not playback
No. DSP settings can be applied during the conversion when the "Apply DSP" checkbox is checked.
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ow, wasn't aware of this. So we keep on learning
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No. DSP settings can be applied during the conversion when the "Apply DSP" checkbox is checked.
that was the solution -- THX !!!
Now the file has the same size as the converted file with the internal tool
There was set - for whatever reason
44100Hz ---> 88200Hz
Now the file has the same size as the converted file with the internal tool
Audio
Format : FLAC
Format/Info : Free Lossless Audio Codec
Duration : 21 min 57 s
Bit rate mode : Variable
Bit rate : 858 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Bit depth : 16 bits
Compression mode : Lossless
Replay gain : -7.65 dB
Replay gain peak : 0.988553
Stream size : 135 MiB (99%)
Writing library : libFLAC 1.3.3 (UTC 2019-08-04)
HDCD : Yes
One last question : Why is at
Stream size : 135 MiB (99%)
displayed ? (Mediainfo) ---->1 % Is that the metadata ?
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The 1% is basically the file overhead. Metadata, seek index, headers, all that stuff that makes audio files easier to use, instead of just the audio in them.