Displaying 20 results from an estimated 3000 matches similar to: "24 bit question"
2010 Dec 02
2
24 bit question
Nicholas is probably right about noise. Another factor would simply
be the amplitude of the resulting file.
A 275 MB 24-bit file which compresses to 110 MB is probably not very
loud. I assume that the average level is somewhat low, with few if
any peaks that reach 0 dBFS. FLAC is very good at compressing audio
that is not loud. In fact, the quieter the recording, the smaller
the
2010 Dec 02
0
24 bit question
24bits are only 14% more information than 16bits, not as much as it
looks. I presume the downsampling introduces some noise which
compresses poorly (bigger residuals) and pretty much outweighs the
advantage. This does not happen with a lossy codec, if the same error
tolerance is imposed on each stage: a 5% noise introduction (say) at
one stage does not create a problem if a 5% error is allowed to
2010 Dec 02
0
24 bit question
Thanks for the replies!
My first thought was that the file had low levels (before he sent me the
file), but that's definitely not the case with this file. There are many
peaks that reach 0dBFS.
He sent me the original wav this morning and I loaded it into Wave Editor on
OS X. I dithered to 16 bit using MBIT+ (high/ultra setting) and saved the
16 bit file. I did nothing else (no
2011 Jan 08
2
Idea to possibly improve flac?
On Jan 7, 2011, at 18:08, Declan Kelly wrote:
> On Fri, Jan 07, 2011 at 05:11:26PM -0800, brianw at sounds.wa.com wrote:
> [NIN 24/96]
>
>> Thanks! That's interesting to note. I think that I ended up with
>> the true 24/96 files, but I am curious: How do you tell whether you
>> have the full 24/96 or not?
>
> Extract to WAV, do a hex dump, and look for
2018 Mar 02
2
Nouveau Digest, Vol 131, Issue 3
On 03/01/2018 07:21 PM, nouveau-request at lists.freedesktop.org wrote:
>
> Message: 1
> Date: Thu, 1 Mar 2018 08:15:55 -0500
> From: Ilia Mirkin <imirkin at alum.mit.edu>
> To: Mario Kleiner <mario.kleiner.de at gmail.com>
> Cc: nouveau <nouveau at lists.freedesktop.org>
> Subject: Re: [Nouveau] [PATCH] Fix colormap handling at screen depth
> 30.
>
2011 Dec 18
1
Why do non-lvds monitors default to dithering these days?
In the past we assumed that external displays did their own dithering
if needed. GPU based dithering is only needed for laptop displays if i
had to guess.
I was almost thinking my monitor was malfunctioning because of strange
barely visible flickering. Now it *seems* as if dithering was the
problem, although time will have to tell, because it's subtle to see
these effects.
Ofcource i can try
2010 Dec 02
2
24 bit question
On Dec 2, 2010, at 07:55, scott brown wrote:
> My first thought was that the file had low levels (before he sent
> me the file), but that's definitely not the case with this file.
> There are many peaks that reach 0dBFS.
Live, uncompressed music often has peaks that are 4 dB higher, or
more, than a typical commercial CD. Such peaks are brief, and would
not really affect the
2018 Mar 02
2
Nouveau Digest, Vol 131, Issue 3
On 03/02/2018 11:29 PM, Ilia Mirkin wrote:
> On Fri, Mar 2, 2018 at 5:16 PM, Mario Kleiner
> <mario.kleiner.de at gmail.com> wrote:
>> On 03/01/2018 07:21 PM, nouveau-request at lists.freedesktop.org wrote:
>>>
>>>
>>> Message: 1
>>> Date: Thu, 1 Mar 2018 08:15:55 -0500
>>> From: Ilia Mirkin <imirkin at alum.mit.edu>
>>>
2018 Feb 04
4
nouveau 30bpp / deep color status
In case anyone's curious about 30bpp framebuffer support, here's the
current status:
Kernel:
Ben and I have switched the code to using a 256-based LUT for Kepler+,
and I've also written a patch to cause the addfb ioctl to use the
proper format. You can pick this up at:
https://github.com/skeggsb/linux/commits/linux-4.16 (note the branch!)
2017 May 10
4
max size for album art?
Is there any size limitation for album art?
I have a user who says adding large artwork (from a scanner) is corrupting
the file metadata. I don't know if this is a flac limitation, a tag lib
issue, or something I'm doing.
Thanks,
Scott
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2011 Mar 07
3
Support for CAF in flac command-line?
On Mar 6, 2011, at 01:22, Erik de Castro Lopo wrote:
> Brian Willoughby wrote:
>> Hopefully, libsndfile no longer uses the incorrect 0x7FFF (32767)
>> factor for float to 16-bit integer conversions, because that would
>> make it unacceptable for lossless file conversions.
>
> That is a statement of opinion rather than fact but I won't go into
> that here.
It is
2014 Jul 26
1
1.21 vs 1.3 encoding speed
Please cc: the results from dev list back here though
I would run some tests on a diff platform but don't have access to my PC for a few weeks
Would also be interesting to see what decoding stats you get
> On Jul 25, 2014, at 7:38 AM, Scott Brown <scottcbrown at gmail.com> wrote:
>
> I will post to the dev list, sorry about that.
>
> To give an idea, though, at flac
2011 May 17
1
Is FLAC hardware independent?
Dear list,
> Which "output file" are you referring to?? Also, your question is
incompletely specified, because you do not qualify whether the input is
the same when you expect the output to be the same.
My question is the following: For any encoding option (e.g. -5, default), does the flac encoder produce the same byte-for-byte output regardless of the CPU?
Regards,
Fernando
2023 Feb 27
1
flac-dev Digest, Vol 191, Issue 7
Hello again,
Quick question about 1.4.2 source. When I comopiled the latest source back
in September, I got the " Neon optimizations : ...................... yes"
output. When I compile the official 1.4.2 source, there's nothing about
Neon. Has this just been removed from the output, or is the official 1.4.2
missing something?
Thanks,
Scott
On Mon, Sep 19, 2022 at 4:15?PM Scott
2022 Sep 19
2
flac-dev Digest, Vol 191, Issue 7
Hi everyone,
I'm back with the same issue as before: flac encoding on an M1 Max Macbook
pro is much slower on an arm build of 1.4.0 than it is running through
emulation on an x86_64 build.
./configure -enable-static -disable-shared CFLAGS=" -arch arm64 -isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
-mmacosx-version-min=10.9"
2017 May 10
1
max size for album art?
Pierre-Yves Thoulon wrote:
> None, apart from the standard metadata block size limitation (2^24
> bytes, e.g. 4GB). Pretty big for any kind of album art...
2^24 = 16777216, i.e. only 16 Megabytes.
> Kind regards.
>
> Pyt.
>
>
>> Le 10 mai 2017 à 17:11, Scott Brown - scottcbrown at gmail.com
>> <flac-dev.pyt.8c0cc6600b.scottcbrown#gmail.com at
2009 Sep 17
4
Optimised ARM Ogg/Theora/Vorbis decoder
This is a note to announce the availability of "Ogg Theorarm", an
optimised ARM implementation of decoding libraries for the Theora
video code, and Vorbis audio codec from xiph.org.
Full details of this code release can be found at
<http://www.wss.co.uk/pinknoise/theorarm>, but highlights include:
* Full speed playback of a 320x240x25fps clip with a 48kHz stereo
audio track on
2011 Feb 05
2
playback problems with oppo BDP-95
My friend somehow managed to get a BDP-95, even though the hardware
isn't scheduled to ship until March. The problem is that the manual
makes no mention of FLAC, at all, and only the web page claims to
support the format.
Playback of flac seems to work, but files from one online vendor work
flawlessly while files from other online vendors have strange
glitches that sound like a
2011 Feb 24
7
[Bug 34680] New: Enable dithering by default for eDP panels
https://bugs.freedesktop.org/show_bug.cgi?id=34680
Summary: Enable dithering by default for eDP panels
Product: xorg
Version: unspecified
Platform: All
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau at lists.freedesktop.org
2007 Jun 27
5
24-bit FLAC Files
Hi, we're a small label in Honolulu, Hawaii, starting up, offering FLAC
downloads of live performances of local artists, and we're wondering how is
the support for 24-bit FLAC files? Our concern is that would it be too
difficult for users to burn 24-bit FLAC recordings to CD? Are there any
simple tools that convert 24-bit FLAC to 16-bit FLAC, or burning
applications that transparently do