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Bauer stereophonic-to-binaural DSP plugin, new plugin
GeSomeone
post Nov 23 2005, 18:31
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QUOTE (boris_mikhaylov @ Nov 2 2005, 05:36 PM)
1.1.0b - test prerelease.
[..]
* Make less global gain against overloading.
*

I don't think that was necessary in foobar2000, as in the DSP pipeline 64 bit floats are used, it won't overload easily. And now the volume is a little bit lower with the b2bs plugin than without.
Nevertheless, for me this is the best "headphone" plugin for foobar so far. cool.gif
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boris_mikhaylov
post Nov 28 2005, 06:26
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QUOTE (GeSomeone @ Nov 23 2005, 11:31 PM)
QUOTE (boris_mikhaylov @ Nov 2 2005, 05:36 PM)
1.1.0b - test prerelease.
[..]
* Make less global gain against overloading.
*

I don't think that was necessary in foobar2000, as in the DSP pipeline 64 bit floats are used, it won't overload easily. And now the volume is a little bit lower with the b2bs plugin than without.
Nevertheless, for me this is the best "headphone" plugin for foobar so far. cool.gif
*


Thanks.
Floating point sound stream must be normalized to 1.0 value peak. That is why "diskwriter" plugin can be overloaded by bs2b plugin when it writes to integer wav file. bs2b do not make normalization of stream and diskwriter does not too.
I was add a little attenuation because a mathematical calculated global gain make overload in some frequency range with highs boost option.
I saw this by equal left and right sine signals (mono). I was prefer to make less global gain for all cases than make it due to bs2b options because this algebra is so difficult to me :-( and I think that this task have no solution.


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pawelq
post Dec 20 2005, 03:25
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Dear Boris,

thank you so much for writing bs2b. I used to listen with headphones a lot, and always wanted to have a decent crossfeed plugin. The one built into foobar is not very good. I downloaded your plugin, and now I use it all the time. In particular, I am delighted how symphonic and opera music sounds. The soundstage is now very clear, the music is less fatiguing, the bass is sitting very well in the overall mix.
I started to recommend the plugin on some forums and I was quite surprised with sometimes not very enthusiastic responses. They were however caused by the gain reduction which you mentioned recently. People check the effects of the plugin by removing it from the DSP list and putting back while playing. What they notice immediately is that the music with bs2b is more quiet and they complain that dynamics is reduced. This is silly, and people who really can listen will appreciate the plugin.
But if you want the plugin to win popularity, I encourage you to tweak it in such way, that gain is not reduced.

Still, I want you to know that I am amazed and delighted. Thank you!
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boris_mikhaylov
post Mar 7 2006, 16:07
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New 2.0.0b version of bs2b plug-in was released.
Sources and win32 binaries are available at http://bs2b.sourceforge.net/
Release notes:
* The new high frequency boost filter have implemented.
The old version of high-boost filter have been realized
by two-step recursive filter for computation power conserving
by subtraction of low-pass filter signal. The new method is
a one-step recursive filter. It has done to provide an adjusted
cut frequency value for more smooth frequency responce of
resulting signal.
* The new clipping feature by checking of [-1, +1] range of
double float operations have implemented against possible
overloads of signal level.
* Global gain have calculated from levels of low frequency range
like in first release. This is don't makes overload now due to
the new frequency responce and to the new clipping feature.
* New functions have added to library for various integer
audio data processing.
* New tuning method have implemented by three preset levels.
* Updatted Winamp 2 plugin have included to package.


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Stratman
post Mar 8 2006, 02:49
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I'm trying to understand this new version. The old version allowed you to choose either Moy's or Linkwitz' crossfeed level. It also allowed you to choose a hgih boost or not.
The only control with this version is a three position slider for crossfeed level. What does each position equate to. Also, is the high boost built in?

Sorry for not understanding this but to my ears this is by far the best crossfeed plugin available so I'd like to continue using it.

Thanks.
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neoufo51
post Mar 8 2006, 05:24
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Hope we get a version that works with the 0.9 release when it becomes stable.
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david_dl
post Mar 8 2006, 08:15
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Whoa, I don't fully understand how this works, or really what it does, but after using it, listening without it is almost unbearable. "Getting the sound out of your head" is a very accurate description of its effect.

Thanks for your hard work.
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markanini
post Mar 8 2006, 15:51
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This plugin is great! It actually makes the perception of the music better, other headphone plugins would do the opposit. Now I can't listen to music without it!

OT:I wish you could also develop a vst version of it, would be great for mixing with headphones.

I minor problem with v2.00b; I get some clicking, it's not very loud tho.
Overall v2 is a big improvment to prior version that I felt removed a bit too much treble. Keep up the good work! smile.gif

This post has been edited by markanini: Mar 8 2006, 15:52
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boris_mikhaylov
post Mar 9 2006, 07:42
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QUOTE (Stratman @ Mar 8 2006, 07:49 AM)
I'm trying to understand this new version. The old version allowed you to choose either Moy's or Linkwitz' crossfeed level. It also allowed you to choose a hgih boost or not.
The only control with this version is a three position slider for crossfeed level. What does each position equate to. Also, is the high boost built in?
*


The old version of bs2b, I was found, is not realy like Moy's or Linkwitz's versions. Because my old high-boost filter have more low cut frequensy. This is mistake of my mind that leads to more thick lowmids. The new version of bs2b is like Moy's version but not exactly.
I have done draft document. Please, see it at http://bs2b.sourceforge.net/about-draft.html
I will report to forum about release of comlete new manual.


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boris_mikhaylov
post Mar 9 2006, 07:44
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QUOTE (neoufo51 @ Mar 8 2006, 10:24 AM)
Hope we get a version that works with the 0.9 release when it becomes stable.
*

Just give me a new SDK :-)


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boris_mikhaylov
post Mar 9 2006, 08:45
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QUOTE (markanini @ Mar 8 2006, 08:51 PM)
OT:I wish you could also develop a vst version of it, would be great for mixing with headphones.
*

I will to try. Could you give me URL of VST SDK for C/C++?
http://www.kvraudio.com/wiki/?id=VST has dead URL to SDK


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markanini
post Mar 9 2006, 14:27
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I have no clue about this stuff, but this link seemed to work: http://ygrabit.steinberg.de/~ygrabit/public_html/index.html
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jlohl
post Mar 11 2006, 23:04
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QUOTE
OT:I wish you could also develop a vst version of it, would be great for mixing with headphones.


I did such a VST, try it at crossfeed+EQ

And let me know your results


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markanini
post Mar 12 2006, 00:41
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Awesome! I'll have a look at it as soon as I have the time.
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neoufo51
post Mar 19 2006, 16:06
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QUOTE (boris_mikhaylov @ Mar 8 2006, 11:44 PM)
QUOTE (neoufo51 @ Mar 8 2006, 10:24 AM)
Hope we get a version that works with the 0.9 release when it becomes stable.
*

Just give me a new SDK :-)
*


http://foobar2000.org/SDK.zip

0.9 was released. I would love to try out this component please.
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boris_mikhaylov
post Mar 28 2006, 12:48
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QUOTE (neoufo51 @ Mar 19 2006, 09:06 PM)
0.9 was released. I would love to try out this component please.
*


http://bs2b.sourceforge.net/
2.0.0b2 - test prerelease.

* New plugin for foobar2000 0.9.
* Plugin for foobar2000 0.8 have removed.
* New look of configuration windows of plugins.
* Default coefficients of default middle crossfeed level and of
44100 Hz sampling rate was staticaly implemeted to bs2b library.


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markanini
post Mar 28 2006, 12:59
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Thank You! smile.gif
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jkml
post Mar 28 2006, 18:09
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QUOTE (boris_mikhaylov @ Mar 28 2006, 07:48 PM)
Default coefficients of default middle crossfeed level and of 44100 Hz sampling rate was staticaly implemeted to bs2b library.
*

Does that mean it is not appropriate to pass 48000 Hz audio to this DSP? Currently I am placing the resampler in front of bs2b... huh.gif
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cybermantis
post Mar 28 2006, 23:16
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QUOTE
And there is SO MUCH in the music you dont normally hear. I just listened to Hey Jude from my Past Masters Vol 2 cd (for those of you who dont know, this is a compilation of singles) and --->

-->when listening at 3:14 you can make out the words "make it jude" and "jude jude jude wawawawawawaw" and all of the other stuff which were from alternate takes which you can hear in the anthology. You can see how the overlayed the tracks with it and its really cool! So much subtlty is exposed with this plugin - and it sounds great!
Ill try and find more examples as I come upon them.


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randal1013
post Mar 28 2006, 23:35
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what is the bs2b plug-in?
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cybermantis
post Mar 28 2006, 23:38
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http://www.hydrogenaudio.org/forums/index....showtopic=38291
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randal1013
post Mar 28 2006, 23:57
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i dont understand. what am i supposed to do with the (.9) plug-in? when i add it to the playback DSP, all it does is muffle the music. it sounds like it turns down the mid-level freqs in the EQ, and the config options don't make a perceivable difference. am i supposed to have a certain kind of headphones or something?
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markanini
post Mar 29 2006, 02:46
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If you dont find that it improves anything then it's not the plugin for you.
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ev0|
post Mar 29 2006, 03:44
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Uh, I too need to know how to apply resampling (I resample to 48000Khz instead of letting my hardware do it) if this also resamples to 41Khz ? Should this go before resampling or after ? unsure.gif

In case you're unaware, the reason why people resample in foobar to 48000 Khz is because their hardware automatically does it, and foobar's resampler would do a better job. But I don't want to be having dsp resampling hell (41 Khz > 48 Khz(DSP) > 41 Khz (Baeur DSP) > 48Khz (Soundcard) ) would be bad for example.

This post has been edited by ev0|: Mar 29 2006, 03:51
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boris_mikhaylov
post Mar 29 2006, 03:57
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QUOTE (jkml @ Mar 28 2006, 11:09 PM)
QUOTE (boris_mikhaylov @ Mar 28 2006, 07:48 PM)
Default coefficients of default middle crossfeed level and of 44100 Hz sampling rate was staticaly implemeted to bs2b library.
*

Does that mean it is not appropriate to pass 48000 Hz audio to this DSP? Currently I am placing the resampler in front of bs2b... huh.gif
*



It is mean that a user of bs2b library can bypass initialisation calls until he need to change crossfeed level or change sample rate in order to rate of audio samples.
It is no concern of plugin or converter users.


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