View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0015002 | MMW 5 | Sync | public | 2018-08-02 14:56 | 2020-07-09 00:39 |
| Reporter | Ludek | Assigned To | |||
| Priority | urgent | Severity | major | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Product Version | 5.0 | ||||
| Target Version | 5.0 | Fixed in Version | 5.0 | ||
| Summary | 0015002: Review default auto-convert rules for synchronization | ||||
| Description | The default auto-convert rules for synchronization are this https://www.dropbox.com/s/5syplxq4kmqoin4/Screenshot%202018-08-02%2016.49.27.png?dl=0 It means that track that has 320 kbps is degraded to 165 kbps (VBR). I guess we should adjust the rules and add another rule like: [x] Incompatible audio, above 300 kbps => 320 kbps (VBR) and change the existing Above 160 kbps ... to [x] Between 160 and 300 kbps = > 192 kbps This is especially important for Google Play Music sync where all tracks needs to be in MP3 format and Google Play Music uploader seems to use 320 kbps (better than our default) | ||||
| Additional Information | http://www.mediamonkey.com/forum/viewtopic.php?f=30&t=90486&p=448018#p447780 | ||||
| Tags | No tags attached. | ||||
| Fixed in build | 2121 | ||||
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Rusty, Jiri, do you agree? |
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I agree that the rules might better be revised, since storage requirements have changed since the original implementation. I'd suggest: [x] Incompatible audio, above 320 kbps => MP3 VBR V0 (~ 245 kbps) [x] Incompatible audio, 160 - 320 kbps => MP3 VBR V2 (~ 190 kbps) [x] Incompatible audio, below 160 kbps => MP3 VBR V4 (~ 165 kbps) The idea is to use VBR mode in all cases (supposedly the most efficient). The highest level could use CBR 320, as the best what MP3 offers. |
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Note that the original point for entering this issue was the case when user copies his FLAC library into Google Play Music. GPM uploader uploads all the tracks at 320 kbps (CBR) so our uploader is degrading the quality. i.e. we should ensure that tracks above 320 kbps aren't degraded below 320 kbps (which isn't the case for the Jiri's suggestions above). Alternatively we could change the defaults just for 'Google Play Music' profile. |
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I suggested VBR V0 instead, since it's a better choice imho: it offers pretty much CBR 320 quality, while consuming less space. That said, I'm fine with CBR 320, since GPM uses it and users might see it as a compromise in quality from MM5 side (which it isn't imho -- I doubt that anyone could hear a difference). |
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I agree with: NEW: [x] Incompatible audio, above 320 kbps => MP3 CBR 320 kbps) [or VBR V0 if you prefer] UPDATE: [x] Incompatible audio, 160 - 320 kbps => MP3 VBR V2 (~ 190 kbps) Re. this one: [x] Incompatible audio, below 160 kbps => MP3 VBR V4 (~ 165 kbps) I'd suggest leaving the quality at V5 since it doesn't make sense to almost always increase the bitrate when converting. Lastly, should we also update the following rule (so that it converts to v2 instead of v4 ? UPDATE: [x] Any audio, above 192 kbps => MP3 VBR V2 (~ 190 kbps) |
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Added in 2121. |
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Verified 2259 Default sync rules are adjusted in this version. |
