File:
Mozart, Requiem, Introitus: Requiem aeternam
325 s.
wav PCM 44kHz, 16bit
57 492 332 B.

Tested on Pentium D 2.66 Ghz.

Code:
FreeArc 1xx        67736020 0.890(1)
FreeArc 2xx        60642306 1.156(1)
FLAC 0             22309239 1.359(1)
FLAC 8             20722966 1.562(1)
TAK 0m             20391274 1.656(1)
TAK 1m             19843824 1.718(1)
TAK 2m             19649626 2.015(1)
TAK 3m             19330680 2.625(1)
WAVPACK extra      20322308 2.718
FreeArc 3xx        39335191 2.843(2)
TAK 4m             19061797 2.859(1)
Nanozip -cd        19961076 2.968
TAK 5e             18947670 3.390(1)(3)
hfwav              23114263 3.765
FreeArc tta:1      20273851 4.078
FreeArc 4xx        39155514 4.125(2)
LPAC 0             19913177 4.453
LPAC 1             22505304 4.484
Nanozip -cD        19784966 4.516
acwav              22779886 5.125
LPAC 2             19777947 5.250
LPAC 3             19748504 5.375
FreeArc tta:2      19940959 5.796
LPAC 4             19706725 6.218
LPAC 5             19645082 6.859
Monkey's Audio 1   20420404 6.906
MinimalAudio       19458341 8.796
Monkey's Audio 2   19718044 9.531
---------------------------------- Time limit
Monkey's Audio 3   19440976 10.531
RKAU 1             20298011 12.406
OptimFROG fast     19407668 53.781
La                 18523472 55.000

(1) "The best" mode. Nothing beats it in both size and time
(2) In these modes FreeArc decompression failed - no file is spawn. However I list it here as when the bug is corrected, timing shouldn't change significantly.
(3) 5e is stronger than 5m on this file
Suggestions for Bulat:
1. Could you include FLAC in FA?
It's additional 140 KB and is much better than TTA when it comes to decompression. Also, TTA:1 is really to slow for -1 mode.
2. If not, on audio files 1xx, 2xx should use store (Or maybe delta? Can't test because delta crashes on this file), 4xx - TTA:1.