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2
Other Lossy Codecs / Re: exhale - Open Source xHE-AAC encoder
Last post by guruboolez -
Bitrate is not fully comparable: exhale d (SBR) is ~74 kbps and exhale 2 is ~80 kbps (and Exhale e is ~86 kbps on my bitrate table).
Interesting test.  :) 
I guess It wouldn't be bad idea to test both SBR ~74 and ~86 kbps settings and calculate an estimate score (at imaginary ~80 kbps) by averaging both values.
It's indeed a good but time expensive solution.

Some score/MOS estimation of mine for SBR:

50 kbps to 61 kbps [+11 kbps] = +0.49
61 kbps to 73 kbps [+12 kbps] = +0.20
73 kbps to 85 kbps [+12 kbps] = +0.10…0.15 [estimation]
so 80 kbps => +0.05 to +0.07 = 3.77 to 3.79
3
3rd Party Plugins - (fb2k) / Re: foo_musicbrainz
Last post by MordredKLB -
Beta 6 fixes issues with dumb popups when aborting a search. It does not solve the odd crash when aborting, that I think is an foobar issue. Will be opening another thread for Peter to take a look at that.
4
Listening Tests / Re: Personal Blind Listening Test of Opus and the exhale xHE-AAC encoder
Last post by guruboolez -
@Kamedo2  @guruboolez

Is this test at 64k - 80k also relevant when using bluetooth device such as headphones/speakers or is better to use higher bitrate source which is better at transcoding when using bluetooth device? Should 80k be of acceptable quality also for bluetooth?
As I understand, no matter which format/codec is used, transcoding to bluetooth codec always occur.
During the last two weeks I used my smartphone to stream xHE-AAC stream over bluetooth: on my car, but also on earbuds. I only add xHE-AAC encodings on my phone for pop/rock/metal albums (no classical music so far). And the bitrate was… 24 kbps (twenty four, yes—with Fraunhofer's encoder). I know it sounds totally silly but I was really curious to check how it sounds in real life and not only on ABC/HR tests. More than 400 GB are available on my phone+SD card so I have no space issue.

So how does it sound: If I wouldn't replace my FLAC with xHE-AAC at 24 kbps encodings for archiving purpose I must say that with this kind of music sound quality is really great to my ears, especially while listening in the car. I really had a lot of pleasure while listening these albums. Some constant issues are slightly audible but I quickly forget them (precisely because those issues are constant and not erratic). I caught two or three strong and ugly artifacts—which is a ridiculously small amount at this insane bitrate. Just to give an idea: one hour of music only needs 10 MB. As a consequence 1000 hours of music can be stored in a fraction of a SD card or internal memory (10 GB).

My phone feeds my earbuds over bluetooth with AAC and my car with SBC. I don't think it significantly affects sound quality.

So to answer your question: 80 kbps is more than an "acceptable" basis for BT streaming :)

NB: as a consequence of this unbelievable experience I've started today a listening test in order to compare OPUS and xHE-AAC at 12, 24 and 32 kbps  :))
6
3rd Party Plugins - (fb2k) / Re: foo_uie_lyrics3
Last post by sveakul -
@veksha:  I noticed that you have posted .42 of Multisource over at Reddit.  Can you tell us what changes were made from .41?  I have been having such problem-free results with .41 that I hesitate to update it without knowing if there are any performance improvements I might benefit from.  Thanks.
9
General - (fb2k) / Re: Monophonic Files are -6dB
Last post by Qboy61 -
That's excellent...  Thanks.  Been trying to understand why my mono WAV files were playing quieter than stereo.  Looks like this is a foobar2k PC thing only.  Foobar2k on Mac already interprets single channel WAVs as full amplitude on both channels without the DSP addon so I was thrown a bit there.  Are there default multichannel WAV file amplitude mix values?  Single channel WAVs are applied at -6dB to both left and right.  Two channel files are at 0dB channel 1 to left and channel 2 to right.  Do you know the default mix ampltudes for the WAV files with more than 2 channels when played on 2 channel systems?  Is this a standard or just software preference?
10
3rd Party Plugins - (fb2k) / Re: Biography Text, Album Info, Picture. www.last.fm
Last post by regor -
@kgena_ua  Btw the fso calls  can be replaced with this on SMP
Code: [Select]
utils.IsFile(file);
utils.IsDirectory(folder);
And providing codepage on ReadTextFile would be faster.
regor, thanks.

Quote
kgena_ua will have to add profilers at multiple points to see where the problem is
what is it.
I'm sorry I'm not English speaking. sometimes there are problems in understanding.
Dont worry, ask me anything you don't understand.

Code: [Select]
var profiler = new FbProfiler('MY CODE 1');
.... code 1 that might be slow
profiler.Print();
...
var profiler = new FbProfiler('MY CODE 2');
.... code 2 that might be slow
profiler.Print();
-> on console
Code: [Select]
[17:31:01] Spider Monkey Panel v1.4.1-dev+0f2108d4: profiler (MY CODE 1): 10ms
[17:31:01] Spider Monkey Panel v1.4.1-dev+0f2108d4: profiler (MY CODE 2): 1500ms
// Code 2 may have problems?
That will show you why your code is slow t in SMP.

More notes:
  • create_history_array -> add profiler?
  • load_json_data -> add profiler?, add codepage to utils.readText (faster)
  • save_json_data -> replace fso with utils.writeText and force codepage utf-8 (faster)
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