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2008-08-25

Аудио слэнг

… EACом грабанул, на флаки фубаром по кую покромсал … (Alextref)

… распакуй вв в вав, и жги EAC-ом через куй … (yuri_usa)

… Куй тэги пока Реплюй Гейн не пришел … (LF)


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Software HDCD decoder

http://www.srcf.ucam.org/~cjk32/hdcd/

According to the discussion  (here) the following command should work:

hdcd.exe < 16bit.wav > 24bit.wav
or
flac -d -c hdcd_orig_16bit.flac | hdcd | flac -5 -f - -o decoded_24bit.flac

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2008-08-23

Gonna buy Shunyata Hydra? Wait a bit…

Read this article first.

Summary:

“After using the two power conditioners with different components  (both tube and solid state) and at different times of day and night, I reached the conclusion that the “DIY Hydra” was a sonic twin to the production Shunyata Hydra 4, taking into account the additional purity provided by eliminating the varistor in my “DIY Hydra”. I found that similar performance to a $700 manufactured product could be obtained for an expense of roughly $100 and some time and effort. The downside is that the “DIY Hydra” has a resale value of effectively zero. The well-reviewed - and deservedly so - Shunyata Hydra 4 will retain its value far better.”

Notes:

  • New Hydra Model-4 costs between $800 and $1300.
  • 2nd hand one can be found for $500-600

Conclusion:

  • Do not buy new
  • The DIY one costs less than the difference between “new” and “old”

Something to think about …


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2008-07-07

SqueezeCenter and Scalar::Util

After upgrading to snv_93 SqueezeCenter (quite predictably) refused to start again. The error was:

# ./slimrun
Weak references are not implemented in the version of perl at /usr/perl5/site_perl/5.8.4/DBIx/Class/Schema.pm line 8
BEGIN failed–compilation aborted at /usr/perl5/site_perl/5.8.4/DBIx/Class/Schema.pm line 8.
Compilation failed in require at (eval 113) line 3.
…propagated at /usr/perl5/5.8.4/lib/base.pm line 85.
BEGIN failed–compilation aborted at /opt/csw/squeezecenter-7.2-21059-noCPAN/Slim/Schema.pm line 29.
Compilation failed in require at /opt/csw/squeezecenter-7.2-21059-noCPAN/Slim/Utils/Progress.pm line 11.
BEGIN failed–compilation aborted at /opt/csw/squeezecenter-7.2-21059-noCPAN/Slim/Utils/Progress.pm line 11.
Compilation failed in require at /opt/csw/squeezecenter-7.2-21059-noCPAN/Slim/Utils/Scanner.pm line 45.
. . .

The issue is related to the same Scalar::Util module. Just force install it like explained here.


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MAC for UNIX

MAC (Monkey’s Audio Converter) for Windows can be downloaded from http://www.monkeysaudio.com. But what about a UNIX version? Two years ago v3.99 Update 4 Build 5 was released but then the development stopped because of some contradictory licensing reasons. That means that MAC for UNIX is not maintained anymore. Fortunately, the old version still works. I compiled it under Solaris 11 x86 and use it for SqueezeCenter.

The source tar file is attached to the post: mac-399-u4-b5.tgz (MD5)

Some notes.

  • To check the MD5 digest:
    % md5sum -c mac-3.99-u4-b5.tgz.md5
    mac-3.99-u4-b5.tgz: OK
  • Always use –prefix=/usr/local (or any other directory in which you keep non-standard files) configuration parameter, because by default the prefix is set to /usr. You might overwrite Solaris file /usr/bin/mac (message authentication code):
    % ./configure –prefix=/usr/local
  • If you are going to use –enable-assembly=yes option (you need yasm to compile assembler code) under Solaris change “sh” to “bash” in src/MACLib/Assembly/Makefile in the following line (line 214 in my case):
    STRIP_FPIC = sh $(top_srcdir)/strip_fPIC.sh

    This is what the line should look like:

    STRIP_FPIC = bash $(top_srcdir)/strip_fPIC.sh
  • There is already a program /bin/mac (see above). If you don’t want to use the full path to the MAC, simply rename the latter:
    # mv /usr/local/bin/mac /usr/local/bin/MAC

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2008-07-01

2L against the loudness war or DSD64 download

Mozart Violin concerto in D major 2L (Lindberg Lyd Ltd) is about to hammer another nail into the CD’s coffin. You can buy and download albums (not many at that time)  in DSD64, FLAC 24/96 and FLAC 24/96 multichannel formats  from their website. Or test taste the HiRez for free here.

The picture shows sono- and spectrogram of W.A.Mozart: Violin concerto in D major (KV 218) - Allegro
Marianne Thorsen / TrondheimSolistene / Øyvind Gimse (Stereo WAV 24bit/96kHz). And it sounds accordingly ;-)

What a difference from the crap like this recording!

More info:


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2008-06-30

Porcupine Tree and the loudness war

Porcupine Tree - clippings Porcupine Tree - clippings

Porcupine Tree - clippingsThis is the second track from Porcupine Tree “Deadwing” called “Shallow”.

WYSIWYG… It sounds just like the graph in SND.  Especially if upsampled without decreasing the volume - like badly scratched disk. And yes, loud. Can it be any worse?

/usr/local/bin/sox effects: polyphase clipped 329755 samples; decrease volume?

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2008-06-25

SqueezeCenter and upsampling

In order to upsample 16/44.1 stream to, for example, 24/96 and play it on the Transporter you need:
[read more...]


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Eva Cassidy and the loudness war

Eva Cassidy - Time After Time - The Letter Who could have thought that Eva Cassidy’s album “Time after time” (one of my favourites, BTW) would have been recorded with such clippings?

See an excerpt from “The Letter”  on the left.


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2008-06-23

How to make a vacuum tube

More information here: http://paillard.claude.free.fr


Fabrication d’une lampe triode
by F2FO

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