DSP and the Single-Driver Speaker

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#81
human.bin said:
hijack gives possibilities to make quick comparison test bypassing elements:

i was trying making the same amount of bsc out of both the buil-in audiounit equalizer and the commercial 64bit and to me the aunit ruins the sound, sort of sucking life while the apulSoft apEq sounds really fine to me
Click to expand...

Yep! This is interesting stuff. Fun, too. I was trying something similar a while ago. Not as scientifically as you.

Try this plugin, Slim Slow Slider LinearPhase Graphic EQ: apulSoft - free software ports

It's a bit special, there is no phase distortion, instead you get a few millisecond delay. Sounds pretty clear. There's also a Windows version somewhere on a .jp site.

Kjaerhus Audio Classic EQ is also free, and very very good. Has a very charming sound, different from most other software EQs I have tried. It's windows-only though 🙁
Kjaerhus Audio - Professional Audio Plug-ins
 
#82
Foobar and BootEQ VST plugin with A126/FE126eN

Hi, I have tried numerous of VST plugins such as apEQ, LPGEQ2, KarmaFx Equalizer and some others.
So far my opinion is that a gentle loudness curve with the Foobar EQ in combination with BootEQ is the most promising compromise for a tiny fullrange.

BootEQ – is a musical sounding mixing EQ and pre-amp simulation with some extra features.
It´s intended to be tuned by ear and not by adjusting curves, which is a good approach.
BootEQ is free and have two options that sounds great with fullranges and tube amps. Select Vintage and Tube on and enjoy.

(Bye the way I was mistakingly identifying horn mouth resonance as room modes in an earlier post. No problems anymore... )

I have been listening to Bach, Nora Jones and John Lee Hooker during my tests and I must say that the A126/Fe126eN/MusicStreamer+ combo now exceeds my expectations.

/Anders
 
#84
kristleifur said:
Yep! This is interesting stuff. Fun, too. I was trying something similar a while ago. Not as scientifically as you.
Click to expand...

Yep! this is. But really there's nothing scientific in my
words... these are my first tries, until this thread i didn't think known a way to get around i-tunes garbage eq (although in an other thread mark fenlon says he was using it to adjust a pair of alpair6 BR... 😱)

the fact that some manufacturers as emerald physics realay on dsp like the beringher let me think that it can't be that bad. at least any dual core pc has more gigaflops than the beringher...
 
#85
acarinanders said:
BootEQ is free and have two options that sounds great with fullranges and tube amps. Select Vintage and Tube on and enjoy.
Click to expand...
unfortunately i cannot find a porting for osx, but i'll be trying it with win, many other effects too on the page for free! it would be useless in a world of perfect recordings, but maybe who knows, some of themaltough not hi-fi can give some fun too and make more recording playable...
 
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#86
Bosk said:
Many thanks for your advice human.bin.

I certainly intend to EQ my drivers and will be especially careful and adhere to advice you offered.

I will report back at a later stage with my results. Thanks again!
Click to expand...

yes, but listen to what chrisb said: one is certainly wasting efficiency the way i suggested, and also for a given spl the driver will be traveling the same (high-pass is a good option here). so maybe a compromise of shelfing highs (even some more than normal bsc) and boosting bass, would be the best way in the end. while for experimenting i got a feel my way is safer...

let us know
 
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#87
I started reading here but not through the whole works yet. Looks like I have to learn foobar. I've had it installed for a while and read the foo forum a bit. From all that it looks like more of a programmers tool with a high learning curve for a civilian.

Even so, when I selected raw foobar to run the audio stream from theclassicalstation.org it picked it up with my specification for Ogg.

I really need to get a decent looking skin for it. Any suggestions? If so I will start a new thread on the use of foobar unless there is no objection to my inquiries here.
 
#89
One more thing about installing the DarkOne theme for foobar.
I remember that it was impossible to install the the theme unless you restart foobar once again (after unzipping the DarkOne files to the foobar/themes folder).
Follow the readme.pdf to set up DarkOne in foobar.
With the theme installed foobar suddenly becomes user friendly.

If you want to install additional VST based EQ:s, first download the VST plugin
foobar2000 3rd party components then take a look att avaliable EQ:s at
KVR: Audio Plug-in Database (Search Page) - VST, Audio Units, DirectX, LADSPA, DSSI
Klick on Plug-in-Databes, scroll down select effects EQ and format VST

/Anders
 
#90
Anders,

Thanks for the reply. For some reason, when I asked which was a good skin that ended the thread/discussion I had at Foobar Central. But they did give the rundown on how to acquire and (maybe) install a skin.

The question of the thread in the Foo Forum was how to get a balance control. This is something that is only readily available in WinAmp.

Also in the realm of DSP, I have been looking for a software solution to the loudness problem on most dvd and download content. Normally only a hardware device can be put in the device chain to limit loudness-- usually called Midnight Theater on some SS amps at retail. I will revisit the Foo forum and see if any off-hand mention of something would be relevant.

I'll look into Dark One skin today.
 
#92
First step is done on this. I got 7zip current edition, downloaded the skin and read the comments on the deviatart.

Beginning the install, there was a warning about installing as administrator. This is something normally found in Linux. My XP user accounts show me, lon, as administrator. Can I proceed with the installtion? lon is defined as administrator. Even though I have a fresh backup hard disk, I figure it's better to ask first.
 
#95
A big job done. Dark One is installed. And I followed the setup instructions on the form that displays up to the last part. Don't know what which "thin button above playlist" is supposed to do.

However I did get it to play "The Hut Sut song" in your honor, Anders.

Then I noticed that the volume indicators were maxed out.

I use a t-amp, the DTA-1 and I checked to make sure the Dark One install did not reset my volume in control panel. That last part is easy to overlook.
Volume on the t-amp is usually about 25 percent.

Dark One has a lot going on with it. I will see how it loads an audio stream.
 
#97
Yikes-- kernel panic

acarinanders said:
A tip for XP users is to install kernel support
foobar2000: Components Repository - Kernel Streaming support

This is also a good add-on. It´s an upsampling dsp-component for foobar. For me it´s great as the musicstreamer+ DAC supports 48 kB/s and I mostly listen to FLAC ripped CD´s. 44.1>48k
Secret Rabbit Code (aka libsamplerate)

/Anders
Click to expand...

"Kernel panic" was a term I learned when experimenting with Linux. There is a warning about the experimental nature of the tweak. Sounds like something to do only with an absolutely fresh backup if an OS reinstall is to be avoided?
 
#99
acarinanders said:
Hi Lon,
You are right...skip the kernel support if you use an external USB-DAC like Musicstreamer.
I gave it go, but after a while foobar halted. I´m glad that some of my tips helped you with foobar.

/Anders
Click to expand...

My setup is AC'3 to the t-amp DTA-1. I'm not using any of the high level
formats like FLAC (presumably conversions from WAV to FLAC or something.) The goal is to get internet radio/streaming audio as good as I can with these tools.

I had to back off of Dark One. The simple plain vanilla is better for me to build on. I remember experimenting with skins for things like WinAmp. They are just too busy. And I found Dark One had to be full screen for my resolution. With that, some of the controls mentioned by tedgo seemed obscured or difficult to locate. I asked tedgo, can I turn off the flashing of the 'on air' symbol in radio. Yes I could but it involved patching code. I felt like I was going down the Linux rabbit hole of programmers tools again.

My next move toward the goal for single driver speakers on the PC is to get that EQ with the balance control. I appreciate your ongoing assistance.

Finally a question.

My other system for media uses a Yamaha RP U100 USB receiver. That must have the DAC built in since the software with it has DSP modes. It is no longer made and I can't understand why Yamaha abandoned the product. It does everything. I'd like to have one of the RP U200 series or another one of these. One of the best products I've owned. And there is nothing on the market like it currently. Or is there?

cheers
 
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#100
Bob Brines said:
In case you haven't picked up from my other posts, I have gone to a computer front end. I use a reasonably powerful dual-core laptop with the music files loaded on a USB hard drive in either FLAC or WMA lossless. That hard drive is synchronized with a drive on another computer for redundancy. My player is Foobar2000. The computer output goes to a DIY Paradise "Monica" DAC and on to the amp-of-the-day.

Using a computer eliminates all of the data flow problems with CD drives. Everything is bits right up to the DAC. Your sound quality depends almost entirely on the DAC.

On to the DSP. Foobar2000 contains a half-octave equalizer. I am now using this equalizer instead of passive filters on my speakers. I've pulled the passive filters out of all of my speakers except the ones on the HT. The results are better than great. I am convinced that the sound is better than with passive filters. More open and involving.

As a first cut, I set the EQ to be the mirror image of the speaker FR plot plus some BSC. Then I play with the bands to get the sound I want. It take maybe 15 minutes to dial in a speaker. How do you want it? Bright? Warm? Thumpy? No problem. I have different setting for different genres. The only thing you have to watch is that you can easily get too much excursion at the bottom by over EQ'ing the bass.

Give this a try. Besides being able to get to any track on any CD is 15 seconds, the sound is very very good.

Bob
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Flac and Foobar are the way to go.

but the missing piece of the puzzle here is ASIO output.

you want to bypass operating system mixer and that's what ASIO does.

i don't know if laptops can do ASIO though.

also jitter reduction is only effective when it happens in the DAC itself. that's why i was using DAC with digital jitter reduction.

my setup ( when i had one ) used to be:

Foobar2000 > ASIO > Motu828 Mk3 > Benchmark DAC1

such a setup is theoretically perfect. i was also running upsampling in Ultra mode on the Foobar so my signal chain was all 24 bit 96 khz.

i had both analog volume control ( in the DAC ) and a digital volume control ( 24/96 ).
 
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