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Recent Posts
21
Polls / Re: Sound colors of codecs
Last post by TF3RDL -
Low bitrate artifacts aren't coloration.
Refer to C.R.Helmrich post.
Oh, changed my mind (even at low bitrates, lossy compression artifacts aren't "colorize" the sound though it doesn't mean we can't use that to apply "deep fried" meme effect to audio) but what I don't get is what @Klymins actually meant by "sound color" right?
23
General - (fb2k) / Re: Binary Comparator version 2.0
Last post by dumbbird -
hey there, thanks for the awesome audio comparator taking gap offsets into account. I find it quite useful when i need to compare two audio tracks with different gap offsets - this tool helps to eliminate the difference caused from gap offsets and compare the actual audio.

now, on top of this, im not sure if this tool can be developed into something smarter, to be capable of doing things like:

1. when comparing two audios with different levels of track gain, to eliminate the difference caused by the gain levels and only to compare the real contents of the audio works? Or in other words, given two sets of audio tracks with different gain levels, first step to unify the gain levels, then do the comparison?

2. when comparing two audios with different play speed, to eliminate the difference caused by speed variances and compare the real contents?

I am not sure how valid and how niche these are. It's likely that we are not supposed to rely on binary comparison tools to make such comparisons. and instead, we should make use of more professional audio tools like Adobe Audition etc. to do so.
However, just wondering if there is any tools or methods that are as efficient to use as this binary comparator tool - without having to manually align the offsets/alter the gain levels/unify the play speed in professional audio tools; and be able to return a readable summary of comparison results like what binary comparator tool does.

Thanks for any thoughts/insights in advance!
26
Lossless / Other Codecs / Re: libttaR (TTA rewrite part 2)
Last post by mycroft -
Using (old version) ffmpeg of cli tool for performance comparison is flawed and extremely biased.
Also current ffmpeg cli tool have bad performance with smaller packets due to clumsy MT work of ex-developer.
Also just to run generic build of ffmpeg for the first time takes extra time... That is just few points I wanted to emphasize how such comparison is unfair and biased.
28
3rd Party Plugins - (fb2k) / Re: foo_truepeak True Peak Scanner
Last post by wojak -
@Case sorry to bother you again but could you please consider implementing PLR in your scanner. Recently you have incorporated LUFS so now PLR is the last thing we have to calculate with enormously long formula and it does not go to tags.
Thank you for this (and many other) great component.
29
3rd Party Plugins - (fb2k) / Re: Dynamic Range plugin
Last post by darkflame23 -
Hey, it's all good! We now have DR built into Foobar natively, with this component (and the True Peak Scanner), so can use what we need. It's brilliant for mastering as I can get an instant readout of many different variables, track to track. Well done Cae. Does the True Peak Scanner now make this DR component redundant?
30
Lossless / Other Codecs / Re: libttaR (TTA rewrite part 2)
Last post by rdtsh -
1.1 is now nearly finished. There is just some minor stuff for me to get at. I plan to officially release it on the first of next month.

here is a benchmark against ffmpeg:

system:
   Linux 5.10.0-23-amd64 SMP Debian 5.10.179-1 (2023-05-12) x86_64 GNU/Linux
CPU:
   AMD Ryzen 7 1700 64-bit 8-Core MT MCP 1550/3750 MHz
ffmpeg:
   ffmpeg version 4.3.6-0+deb11u1
   built with gcc 10 (Debian 10.2.1-6)
   libavutil      56. 51.100 / 56. 51.100
   libavcodec     58. 91.100 / 58. 91.100
   libavformat    58. 45.100 / 58. 45.100
   libavdevice    58. 10.100 / 58. 10.100
   libavfilter     7. 85.100 /  7. 85.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  7.100 /  5.  7.100
   libswresample   3.  7.100 /  3.  7.100
   libpostproc    55.  7.100 / 55.  7.100
ttaR:
   Debian clang version 11.0.1-2
   -march=native -mtune=native
file:
   Nirvana - MTV Unplugged in New York
   571084460   mtv.wav
   337981896   mtv.tta

##############################################################################

 Performance counter stats for 'ffmpeg -loglevel quiet -threads 1 -i mtv.wav -f tta /dev/null -y' (20 runs):

          8,925.80 msec task-clock                #    1.000 CPUs utilized            ( +-  0.06% )
                60      context-switches          #    0.007 K/sec                    ( +-  5.24% )
                16      cpu-migrations            #    0.002 K/sec                    ( +-  2.69% )
            86,798      page-faults               #    0.010 M/sec                    ( +-  0.00% )
    33,302,059,704      cycles                    #    3.731 GHz                      ( +-  0.05% )  (83.33%)
       566,286,522      stalled-cycles-frontend   #    1.70% frontend cycles idle     ( +-  0.54% )  (83.33%)
     3,988,341,464      stalled-cycles-backend    #   11.98% backend cycles idle      ( +-  0.18% )  (83.33%)
    65,718,741,261      instructions              #    1.97  insn per cycle
                                                  #    0.06  stalled cycles per insn  ( +-  0.00% )  (83.33%)
     8,702,525,883      branches                  #  974.986 M/sec                    ( +-  0.01% )  (83.34%)
       384,955,890      branch-misses             #    4.42% of all branches          ( +-  0.03% )  (83.33%)

           8.92647 +- 0.00557 seconds time elapsed  ( +-  0.06% )


 Performance counter stats for 'ffmpeg -loglevel quiet -threads 1 -i mtv.tta -f s16le /dev/null -y' (20 runs):

          6,504.99 msec task-clock                #    1.000 CPUs utilized            ( +-  0.13% )
                55      context-switches          #    0.008 K/sec                    ( +-  2.46% )
                16      cpu-migrations            #    0.002 K/sec                    ( +-  2.49% )
             3,692      page-faults               #    0.567 K/sec                    ( +-  0.04% )
    24,289,757,929      cycles                    #    3.734 GHz                      ( +-  0.13% )  (83.31%)
       327,298,120      stalled-cycles-frontend   #    1.35% frontend cycles idle     ( +-  0.15% )  (83.31%)
     3,454,321,337      stalled-cycles-backend    #   14.22% backend cycles idle      ( +-  0.20% )  (83.33%)
    67,039,367,957      instructions              #    2.76  insn per cycle
                                                  #    0.05  stalled cycles per insn  ( +-  0.00% )  (83.35%)
     8,499,223,928      branches                  # 1306.569 M/sec                    ( +-  0.00% )  (83.36%)
       313,478,808      branch-misses             #    3.69% of all branches          ( +-  0.01% )  (83.34%)

           6.50534 +- 0.00866 seconds time elapsed  ( +-  0.13% )


 Performance counter stats for 'ffmpeg -loglevel quiet -threads 16 -i mtv.tta -f s16le /dev/null -y' (320 runs):

          9,947.58 msec task-clock                #   12.309 CPUs utilized            ( +-  0.09% )
             4,450      context-switches          #    0.447 K/sec                    ( +-  0.37% )
             1,041      cpu-migrations            #    0.105 K/sec                    ( +-  1.04% )
             8,380      page-faults               #    0.842 K/sec                    ( +-  0.00% )
    36,296,805,088      cycles                    #    3.649 GHz                      ( +-  0.02% )  (83.37%)
       562,776,161      stalled-cycles-frontend   #    1.55% frontend cycles idle     ( +-  0.15% )  (83.13%)
     5,056,980,289      stalled-cycles-backend    #   13.93% backend cycles idle      ( +-  0.02% )  (83.21%)
    67,127,958,734      instructions              #    1.85  insn per cycle
                                                  #    0.08  stalled cycles per insn  ( +-  0.00% )  (83.30%)
     8,518,827,278      branches                  #  856.372 M/sec                    ( +-  0.00% )  (83.43%)
       317,537,726      branch-misses             #    3.73% of all branches          ( +-  0.00% )  (83.57%)

           0.80817 +- 0.00137 seconds time elapsed  ( +-  0.17% )

##############################################################################

 Performance counter stats for 'ttaR encode -q -S mtv.wav -o /dev/null' (20 runs):

          5,697.67 msec task-clock                #    1.000 CPUs utilized            ( +-  0.10% )
                13      context-switches          #    0.002 K/sec                    ( +- 14.11% )
                 0      cpu-migrations            #    0.000 K/sec                    ( +- 31.26% )
               252      page-faults               #    0.044 K/sec                    ( +-  0.10% )
    21,277,212,273      cycles                    #    3.734 GHz                      ( +-  0.08% )  (83.32%)
       424,132,363      stalled-cycles-frontend   #    1.99% frontend cycles idle     ( +-  1.19% )  (83.32%)
     8,164,992,255      stalled-cycles-backend    #   38.37% backend cycles idle      ( +-  0.17% )  (83.33%)
    50,036,808,248      instructions              #    2.35  insn per cycle        
                                                  #    0.16  stalled cycles per insn  ( +-  0.00% )  (83.34%)
     3,929,444,278      branches                  #  689.658 M/sec                    ( +-  0.01% )  (83.36%)
       371,064,057      branch-misses             #    9.44% of all branches          ( +-  0.01% )  (83.34%)

           5.69822 +- 0.00548 seconds time elapsed  ( +-  0.10% )


 Performance counter stats for 'ttaR encode -q -t16 mtv.wav -o /dev/null' (320 runs):

          8,177.73 msec task-clock                #   15.379 CPUs utilized            ( +-  0.02% )
             1,300      context-switches          #    0.159 K/sec                    ( +-  2.07% )
               203      cpu-migrations            #    0.025 K/sec                    ( +-  2.01% )
             5,834      page-faults               #    0.713 K/sec                    ( +-  0.04% )
    30,484,625,770      cycles                    #    3.728 GHz                      ( +-  0.02% )  (83.09%)
       439,889,964      stalled-cycles-frontend   #    1.44% frontend cycles idle     ( +-  0.38% )  (83.18%)
     4,980,516,390      stalled-cycles-backend    #   16.34% backend cycles idle      ( +-  0.04% )  (83.31%)
    50,068,984,657      instructions              #    1.64  insn per cycle        
                                                  #    0.10  stalled cycles per insn  ( +-  0.00% )  (83.46%)
     3,937,619,679      branches                  #  481.505 M/sec                    ( +-  0.00% )  (83.60%)
       380,192,849      branch-misses             #    9.66% of all branches          ( +-  0.00% )  (83.36%)

          0.531753 +- 0.000344 seconds time elapsed  ( +-  0.06% )


 Performance counter stats for 'ttaR decode -q -S mtv.tta -f raw -o /dev/null' (20 runs):

          5,807.10 msec task-clock                #    1.000 CPUs utilized            ( +-  0.12% )
                15      context-switches          #    0.003 K/sec                    ( +-  9.58% )
                 1      cpu-migrations            #    0.000 K/sec                    ( +- 25.36% )
               207      page-faults               #    0.036 K/sec                    ( +-  0.10% )
    21,697,968,813      cycles                    #    3.736 GHz                      ( +-  0.12% )  (83.29%)
       409,444,598      stalled-cycles-frontend   #    1.89% frontend cycles idle     ( +-  0.06% )  (83.33%)
     8,348,408,571      stalled-cycles-backend    #   38.48% backend cycles idle      ( +-  0.30% )  (83.35%)
    53,311,974,255      instructions              #    2.46  insn per cycle        
                                                  #    0.16  stalled cycles per insn  ( +-  0.00% )  (83.35%)
     3,884,628,982      branches                  #  668.945 M/sec                    ( +-  0.00% )  (83.36%)
       370,081,414      branch-misses             #    9.53% of all branches          ( +-  0.01% )  (83.32%)

           5.80763 +- 0.00684 seconds time elapsed  ( +-  0.12% )


 Performance counter stats for 'ttaR decode -q -t16 mtv.tta -f raw -o /dev/null' (320 runs):

          8,396.63 msec task-clock                #   15.660 CPUs utilized            ( +-  0.02% )
             2,705      context-switches          #    0.322 K/sec                    ( +-  0.61% )
                70      cpu-migrations            #    0.008 K/sec                    ( +-  1.97% )
             4,820      page-faults               #    0.574 K/sec                    ( +-  0.00% )
    31,341,341,315      cycles                    #    3.733 GHz                      ( +-  0.02% )  (83.16%)
       404,497,658      stalled-cycles-frontend   #    1.29% frontend cycles idle     ( +-  1.11% )  (83.19%)
     4,983,844,918      stalled-cycles-backend    #   15.90% backend cycles idle      ( +-  0.03% )  (83.27%)
    53,368,851,871      instructions              #    1.70  insn per cycle        
                                                  #    0.09  stalled cycles per insn  ( +-  0.00% )  (83.37%)
     3,896,895,024      branches                  #  464.102 M/sec                    ( +-  0.00% )  (83.55%)
       378,556,224      branch-misses             #    9.71% of all branches          ( +-  0.00% )  (83.45%)

          0.536170 +- 0.000363 seconds time elapsed  ( +-  0.07% )