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1
General Audio / Re: Test files needed
Last post by jaybeee -
Have a poke about in the archive.org site. I don't think either CD are there, but there might be other ones, even in sample form that might be of use.

I am of the opinion that such (seemingly) valuable material should be available in the public domain. However, they're both likely still copyright protected and thus not available on the web for free.

I have searched a few places I frequent to check and they're not there.

The Pierre Varney one is available to buy at Discogs tho. And some cheeky scamp is selling it for over £100 on eBay  ::)

-

I found another source of info about test CDs: http://www.technofileonline.com/texts/testcd89.html

3
FLAC / Re: FLAC - stored main chunk length differs from written length
Last post by Porcus -
And so, the validity in Reply 50 of that test file ... with that interpretation?


(BTW, I am not much fan of overmoderation, but @korth as mod: This thread has become more about peculiar WAVE files than a wishlist on one particular encoder/decoder. Or maybe wishful thinking on my part. Maybe it does no harm staying in this subforum.)
5
3rd Party Plugins - (fb2k) / Re: Biography Discussion
Last post by marc2k3 -
I think this script works fine for the vast majority of people. This vbs issue is a bit obscure to say the least. The easiest fix would be replacing it with curl or similar. It's even included on windows 10/11.
6
Other Lossy Codecs / Re: exhale - Open Source USAC encoder
Last post by nu774 -
As for decoder side, has anyone tried this?
https://github.com/Fraunhofer-IIS/mpeghdec

It seems to be based on the decoder part  of FDK-AAC but is updated to support MPEG-H.

https://github.com/Fraunhofer-IIS/mpeghdec/blob/main/src/libMpeghDec/include/aacdecoder_lib.h
The header says it supports MPEG-2/4 AAC, MPEG-D Audio(USAC), and MPEG-H Audio.

USAC config parser of FDK-AAC refuses channel_configuration > 2 here (maybe xHE-AAC restriction?):
https://github.com/mstorsjo/fdk-aac/blob/master/libMpegTPDec/src/tpdec_asc.cpp#L2148

In mpeghdec, the same function is updated to also support MPEG-H config and  the restriction  seems to be removed:
https://github.com/Fraunhofer-IIS/mpeghdec/blob/main/src/libMpegTPDec/src/tpdec_asc.cpp#L458
8
FLAC / Re: FLAC - stored main chunk length differs from written length
Last post by bryant -
I have updated this again with this commit.

For now I've decided to re-allow unpacked samples in WAV (they are already valid in CAF), however I now reject the file if all the required padding bits are not zero, and suggest the --pre-quantize option to "fix" the files, and if it's appropriate I suggest the Adobe Audition / Cool Edit option.

I realize that these files are probably invalid WAVs, but if the data is consistent (i.e., all the correct bytes are zero) then why not? I also prefer the behavior that if someone tries to compress a Audition 24.0 float file without the -a flag they'll get an error message with a reminder about the option instead of generating a corrupt WavPack file (which obviously was less than ideal).
9
General Audio / Test files needed
Last post by file627 -
Two classic test CDs -- Pierre Verany and Philips -- were used by many audio and hifi magazines and service technicians in testing/calibrating CD players. In magazine reviews, journalists would mention the "Pierre Verany or Philips test CD" , by name, when reporting results. Some of the Philips CDs were never for sale, but given to techs and repair facilities. In any case, they have been long out of print, and are quite expensive in the used market.
Pierre Verany:
https://www.discogs.com/release/8431815-Various-Digital-Test-106-Plages-De-Demonstration-Et-Tests-Numeriques-106-Digital-Tests-Demonstration
Philips:
https://www.bramjacobse.nl/wordpress/?p=4378

I need WAV or FLAC tracks similar to the ones on these classic test CDs. Does HA have (or know of) a WAV test tone public domain database?


Thanks




MOD edit: Reduced size of text.
10
3rd Party Plugins - (fb2k) / Re: foo_vis_spectrum_analyzer
Last post by TF3RDL -
Quote from: pqyt on
The wiki has been updated to provide a little more explanation about the various settings.
Also, don't forget about the images of what settings actually do (e.g. switching from FFT to IIR filter bank changes the shape of the spectrum response)

BTW, as the wiki is editable by everyone (not just you), these changes (necessary updates) to this wiki page shouldn't be listed on changelogs in this GitHub page nor this component repository page