On 9/2/2015 1:48 PM, robert bristow-johnson wrote:
On 9/2/15 7:13 AM, Jean-Baptiste Thiebaut wrote:
I'd recommend JUCE (juce.com). There's already
support for iOS and Android, and it's about to get better. And it's
all cross platform C++, so you can do real-time applications.
(full
In order to reconstruct that sinusoid, you'll need a filter with
an infinitely steep transition band.
You've demonstrated that SR/2 aliases to 0Hz, i.e. DC.
That digital stream of samples is not reconstructable.
On 8/18/2015 1:28 PM, Peter S wrote:
That's false. 1, -1, 1, -1, 1, -1 ... is a
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On 8/13/2015 9:41 AM, Tom Duffy wrote:
Here's an experiment that I always wanted to do:
NOTICE
Here's an experiment that I always wanted to do:
The dither added is 1 bit (or 2 if doing TPDF),
so generating it from a PRNG is easy, you get
one bit at a time, and the bits are all completely
uncorrelated to each other - white noise spectrum.
When implemented in DSP, sometimes you get a
PRNG
On 8/9/2015 7:08 PM, robert bristow-johnson wrote:
but that's multibit. 1-bit sigma-delta is a whole 'nother thing. as
mentioned above the math that tells you how loud the dither should be is
different. it becomes signal level dependent rather than a function of
the step-size of the
On 8/10/2015 10:49 AM, Peter S wrote:
On 10/08/2015, Sampo Syreeni de...@iki.fi wrote:
Do notice that we're in the business of producing audio systems and
software. Not all of them are meant for pure human consumption. For
example, in audio forensics work, you'd like your signal chain to be
You didn't change the bandwidth.
If the target signal is max 30Hz and you have a 192kHz sampler, you low pass
at 2x your max frequency (60Hz, but lets say 100Hz for convenience) using
a brick wall digital filter (processed at 192kHz). Then you do a
downsampling
of the signal from 192kHz to
This is painful to follow.
Can we at least go back to basics and not keep changing the
meaning of well known concepts and vocabulary.
re, sound card performance:
What is SNR, how is it measured, and why does that matter?
e.g.
http://www.cse.psu.edu/~chip/course/analog/lecture/SFDR1.pdf
There
Related:
Using separate reverbs on each instrument in a DAW recording gives a
richer mix that just a single reverb on the master channel.
Back in the analog days, you'd use the multitrack tape and mixer
to do multiple passes through the best reverb in the studio.
In the early DAW days, you'd
Following the SIMD instruction with a NOP, or interleaving with other
bits of unrelated code is a common DSP trick for dealing with this
problem.
You'd have to look up the documentation for how many NOPs are needed
before the SIMD result is available back in the register, and that
may vary
The only comment in that page that actually tells the story is buried:
--
Different media, different master
I've run across a few articles and blog posts that declare the virtues
of 24 bit or 96/192kHz by comparing a CD to an audio DVD (or SACD) of
the 'same' recording. This
So you like the bar being raised, but not the way that Neil Young has
attempted?
Whether the higher resolution actually degrades the quality is a
topic up for future debate.
From the ponomusic webpage:
...and now, with the PonoPlayer, you can finally feel the master in all
its glory, in its
you personally hear it is likely
to depend both on how extensive your data flow pathway is and how good
your playback equipment is.
Vicki Melchior
On Feb 5, 2015, at 10:01 PM, Ross Bencina wrote:
On 6/02/2015 1:50 PM, Tom Duffy wrote:
The AES report is highly controversial.
Plenty of sources
The AES report is highly controversial.
Plenty of sources dispute the findings.
---
Tom
On 2/5/2015 6:39 PM, Ross Bencina wrote:
Hi Ethan,
On 6/02/2015 1:17 PM, Ethan Duni wrote:
There is just no way A/B testing on a sample of listeners,
at loud, but still realistic listening levels,
Joe Farrish wrote:
Combining ADCs/DACs to increase bit depth? I was wondeing if anyone has done
this or if it is even possible.
Yes, and it's a patent mine-field.
NOTICE: This electronic mail message and its contents, including any attachments hereto
(collectively, this e-mail), is hereby
Having worked with Direct-Form I filters for half of my
career, I've been glossing over this discussion as
not relevant to me.
I went back and re-read it, and if you can get past
the scribbled diagrams and a few hand-waving / bypassed
steps, I can appreciate that Andrew has derived a
useful
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