[HN Gopher] Surround sound test files for every audio format
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Surround sound test files for every audio format
Author : austinallegro
Score : 181 points
Date : 2023-11-03 22:21 UTC (1 days ago)
(HTM) web link (drive.google.com)
(TXT) w3m dump (drive.google.com)
| seba_dos1 wrote:
| I don't get one thing - why would devalue your submission by
| typing "every" when it's clearly not true?
| happytoexplain wrote:
| What a strange thing to be condescending about.
| dtx1 wrote:
| True, it's weird but this is missing major formats like
| auro3d
| zer00eyz wrote:
| https://www.audioholics.com/audio-
| technologies/auro-3d-bankr...
|
| Isn't auro3d mostly dead/beta maxed?
| dtx1 wrote:
| Sure, but it's something my receiver technically support
| teh_klev wrote:
| But no-one is shipping content with these long gone
| formats any more. My almost 20 year old receiver supports
| formats that have long since fallen by the wayside as
| well, why put any effort into them for test and
| diagnostics?
| CamperBob2 wrote:
| I was bummed that it didn't include 4-bit mono ADPCM,
| myself. Nothing else evokes my childhood with Ma Bell
| quite as effectively.
| seba_dos1 wrote:
| Old content still exists. Also, there are still SACD
| releases being made in 2023 (though whether it makes
| sense is another matter) and DSD is nowhere to be seen in
| this set of files either.
|
| That said, it's obviously impossible to include every
| audio format out there, so I don't expect it to do so at
| all. That's why I asked what's the motivation to write
| such thing, because it's a very weird thing to say in the
| first place. If it actually included some weird, exotic
| and outdated formats it could perhaps be excused, but
| apparently it doesn't even try to do that, so it really
| feels like clickbait.
| refulgentis wrote:
| Dude what
| globular-toast wrote:
| Pretty sure Ogg/Vorbis supports multichannel. I don't see
| that there.
| asylteltine wrote:
| Auro3d isn't a major format and it's entirely dead
| nativeit wrote:
| Some sort of CAD file for etching wax cylinders and vinyl
| masters would warm the smart-ass cockles of my heart.
| seba_dos1 wrote:
| Nobody's condescending here (except you, perhaps). I don't
| know much about audio formats myself, I clicked because I got
| curious of "every audio format", but got a pretty basic set
| of the most popular formats instead that's missing some
| formats that even a dummy like me knows that exist, so I'm
| genuinely curious why would someone add a completely
| unnecessary and confusing word "every" into that sentence
| instead of, say, "various". All it achieves is that it turns
| a useful submission into a lie.
| dylan604 wrote:
| The LPCM5.1 is an M2TS file at @498MB while the LPCM7.1 is
| saved as WAV at only 23.2MB. That seems very strange unless the
| 7.1 is significantly shorter. That would be very odd decision.
| Seems to me that a library like this would be exactly the same
| audio source just saved as the different formats. Maybe I'm
| over thinking it, and just too OCD about making a library like
| this public for fear of this very type of criticism
| batch12 wrote:
| Maybe it's the collector's goal to eventually have every one
| possible
| asylteltine wrote:
| This is way more useful than people think thank you
|
| Google products have become so user hostile at the expense of
| their users. I literally cannot download this folder on my phone
| I have to "share" each one individually. I also can't make an
| actual copy of the files without downloading and uploading so
| they save some precious space. Must be hard for such a small
| company
| solardev wrote:
| With the Drive app you can just select all and download
| ryandrake wrote:
| I was going to post that on the web site, you can click the
| title (Audio Test Files) at the top, and select Download. It
| will create a ZIP and off you go. But then I tried it and OP
| is right--it failed.
| CamperBob2 wrote:
| Ctrl-a will select all the files for downloading in
| Firefox. That's the only way I could see to grab them all
| at once.
|
| You will end up receiving three .zip files that unpack to
| about 5 GB total.
| ShadowBanThis01 wrote:
| Worked fine for me in desktop Safari... shockingly enough.
| crazygringo wrote:
| You're right that you can't download multiple files on the
| _phone_. (Whether that 's a good decision or not I don't know
| -- generally whenever I try sharing multiple files in iOS apps
| it's wonky, where apps only receive the first file and throw
| away the rest, so it might be a broader ecosystem problem.)
|
| But just use your browser. Ctrl+A to select all files, hit the
| "Download" button, wait a minute for it to create a .zip file,
| and it downloads. Just tried it myself, works like a charm. (In
| past experience sometimes the .zip archive step fails -- if so,
| so just try a second time.)
|
| > _I also can't make an actual copy of the files without
| downloading and uploading so they save some precious space._
|
| If you're trying to make a copy to your own personal Drive,
| just select "Make a copy" from the context menu. That creates a
| copy (not a shortcut) in your Drive root folder, no downloading
| and uploading required. (In the mobile app that option appears
| only for individual files, but the Drive website allows you to
| do it for all selected files at once.) I just tried this now as
| well and it works perfectly.
|
| Or if you want to save space on your Drive, you can _drag_ them
| to "My Drive" (rather than explicitly making a copy) and it'll
| create shortcuts instead.
| vrytired wrote:
| http://ohnodomo.duckdns.org/hosted/sharex/Audio%20Test%20Fil...
|
| I've downloaded them and created a mirror for anyone else
| having issues.
| ShadowBanThis01 wrote:
| Google Drive is so rife with fraud and BS. First off, if you
| upload stuff to someone else's Drive, it counts against YOURS.
|
| Second, there's actually no way to let someone upload stuff to
| your drive. I needed a bunch of video footage from someone
| else's phone, but she couldn't upload it even though I gave her
| a link to a folder... because she doesn't have her own Drive.
| So BS #2 is to support BS #1.
|
| I don't remember if Google double-counts stuff "shared" with
| you, against your Drive and the sharer's. But I wouldn't put it
| past them.
|
| Unfortunately DropBox doesn't offer competitive capacity/price
| combos, and even worse they outright lose files. They lost an
| entire video job I uploaded for a client; gigabytes of files
| just disappeared for several days, and when they finally
| responded to inquiries they had no explanation. I had to sign
| up for Google just to get the job delivered (late).
| j-bos wrote:
| Can someone explain the purpose and use of these files?
| dsr_ wrote:
| Channel mapping from source through PC sound system to
| multichannel receiver.
|
| [PCs often have idiosyncratic default channel arrangements]
| grujicd wrote:
| And these channel arrangements can messed up if you pluging
| headphone/mic in one of the ports, plugin new hdmi device, or
| for some other reasons. If you use software for mapping
| surround channels (Virtualmeeter, etc) things can also break.
| Or channel levels can differ between front and surround
| channels. Or even if you're lucky that nothing ever breaks
| these files are useful during initial fine tuning.
| raffraffraff wrote:
| I used a tiny SBC and a 7.1 channel USB soundcard to upgrade a
| 15 year old Yamaha AV 5.1 "Dolby Digital" receiver (with
| toslink/spdif) to handle the latest codecs. The old receiver
| has a "6ch input" selector that doesn't do any decoding - just
| takes the 6 inputs, amplifies them and sends them to the
| speakers. I also use the extra 2 channels from the USB 7.1
| audio to a 2nd stereo amp that powers the adjoining room. (This
| involves pulseaudio channel mapping).
|
| It took about 2 days to make sure that absolutely everything
| worked, including turning stereo into 5.1 + 2, and adding LFE
| to the adjoining room speakers so they didn't miss out on
| multichannel bass. Technically, I could map the extra channels
| from a 7.1 or 9.1 source into their nearest 5.1 neighbors, but
| I left that part disabled because I don't have any sources with
| that many channels.
|
| The most tedious part of the setup was proving that each source
| type was supported, and all the speaker mappings were correct.
| Test files are extremely useful and there's no one source for
| all of them. I spent quite some time finding these files for
| myself.
| red0point wrote:
| Can you provide a bit more details to your setup (HE, ...) -
| it sounds perfect and exactly what I am looking for at the
| moment.
| raffraffraff wrote:
| I bought a MeLE quiet PC (little bigger than a pi but with
| case, x86, ssd, 16gb memory) and installed OpenSUSE
| Tumbleweed because I wanted a rolling distro. Installed
| kodi, mounted it on the back of a large monitor. Using a
| cheap Startech 7.1 USB audio on a long USB connection that
| takes it all the way to the Yamaha receiver. I've attached
| a 2TB HDD to the MeLE and that holds most of my stuff.
| There's a NAS in the attic too.
|
| For the pipewire / pulseaudio channel mapping I can go into
| the boring details if you want
| slimsag wrote:
| What is the license of these files?
| hunter2_ wrote:
| Suppose these were stolen from someone who established some
| sort of license. Then knowing that would be extremely useful.
|
| But suppose that simply isn't the case, and somebody just
| created the files and let them go. Is it problematic for there
| to be no license? The phrasing of your question (asking what
| the license is, rather than asking whether there is a license)
| suggests possibly yes. Genuinely curious. Should things that
| legitimately lack a license be treated as if they have an
| infinitely permissive license or an infinitely restrictive
| license or something in between?
| seba_dos1 wrote:
| Most jurisdictions on Earth are pretty clear that no license
| means no ability to use whatsoever (sans special cases like
| fair use), so you don't have to type "all rights reserved" -
| it's the default. Sometimes the act of sharing with intention
| for others to use creates an implicit license though, but the
| extent of such license depends on particular country's laws.
| lxgr wrote:
| You don't need to "establish a license" to receive copyright
| protection in most jurisdictions (anymore).
|
| Unless they specifically grant a license to the general
| public (such as Creative Commons) or they release a work into
| the public domain (in countries that know the concept), the
| copyright is with its creator.
|
| This only applies to copyrightable works and there are many
| other edge cases, though.
| cjbprime wrote:
| This is not an open question. The infinitely restrictive
| license is the default. Copyright rights (which include
| permission being required for redistribution) have been
| automatically granted for all creative works by default since
| 1978 in the US, and other countries have generally adopted
| compatible copyright laws.
| Dah00n wrote:
| Is this made by a US user?
| hn_acker wrote:
| I'm a US user, but if I'm understanding the Berne
| Convention correctly, then most countries in the world
| make copyright apply automatically without need for
| registration. Quoting the Wikipedia article on the Berne
| Convention [1] (disregard the citations in the quotes):
|
| > As of November 2022, the Berne Convention has been
| ratified by 181 states out of 195 countries in the world,
| most of which are also parties to the Paris Act of
| 1971.[4][5]
|
| > The Berne Convention introduced the concept that
| protection exists the moment a work is "fixed", that is,
| written or recorded on some physical medium, its author
| is automatically entitled to all copyrights in the work
| and to any derivative works, unless and until the author
| explicitly disclaims them or until the copyright expires.
| A creator need not register or "apply for" a copyright in
| countries adhering to the convention. It also enforces a
| requirement that countries recognize rights held by the
| citizens of all other parties to the convention.
|
| With that said, the US does require the author to have
| completed the registration process before filing a
| lawsuit over copyright infringement [2]. I say "completed
| the registration process" because the US Copyright Office
| might refuse the registration, but the author will be
| entitled to sue infringers afterward regardless of the
| outcome.
|
| [1] https://en.wikipedia.org/wiki/Berne_Convention
|
| [2] https://en.wikipedia.org/wiki/Copyright_law_of_the_Un
| ited_St...
| pdntspa wrote:
| A license.... how quaint!
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