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Test your ears in my new ABX test
Test your ears in my new ABX test
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View Poll Results: Have you been able to discern the files in an ABX test?
Yes, I was able to discern the files and have positive result 3 20.00%
No, I was not able to discern the files in an ABX test 12 80.00%
Voters: 15. You may not vote on this poll

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Old 11th November 2017, 08:04 AM   #421
PMA is offline PMA  Europe
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Karl, when analysing your Rotel 1kHz tone files, I can see that both of them have high level of background noise and spuriae. Therefore is difficult to evaluate amplifiers sonic contribution without having an original file. Would it be possible to post the original, level matched file, or, at least, the file recorded through direct loopback without Rotel in the signal path?
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Old 11th November 2017, 08:16 AM   #422
maty tinman is offline maty tinman  Spain
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Default Moving my arms like an orchestra conductor. Multichannel 9.2

This means that I can not resist moving my arms like an orchestra conductor. And that is not very usual in me, I need to believe what I hear and get excited.

Years ago (2011), in Reus (Tarragona, Spain) I hear the Andreu big system, 9.2 (two big DIY closed 18" subwoofer). First with closed speakers and after with open speakers, all DIY.

With closed front:

Sala de Andreu. Campo cercano. MP3 versus FLAC. 16/44 versus 24/96. B2031P versus Trevi+sub. Campo lejano y multicanal. | Nauscopio Scipiorum

[IMG] http://maty.galeon.com/NB-imagenes/a...u-16042011.jpg

and the DIY open front

[IMG] http://maty.galeon.com/WP-imagenes/h...ipolos-III.jpg

With the front closed, rock, pop, jazz, classical... multichannel sounded very very very well.

With the front opened, the classical (multichannel) sounded AMAZING. The others music sounded worse than closed speakers.


PS: One day with the old dipole. Second day with the Behringer VP2520 without mods. Third day with the new dipole (picture above),

Last edited by maty tinman; 11th November 2017 at 08:31 AM.
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Old 11th November 2017, 08:47 AM   #423
maty tinman is offline maty tinman  Spain
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The older big closed front: Matrix-Hifi: H.U.M --> MGornirl
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Old 11th November 2017, 09:03 AM   #424
jcx is offline jcx  United States
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Default LTspice IV .wav works at 24 bits 96k for me

Quote:
Originally Posted by Mooly View Post
...Due to the limitations of exporting files in LTSpice the originals had to be down converted to 44.1k unfortunately...
don't know what you're saying here - takes too long, files too big, or control panel settings not giving enough resolution?
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Old 11th November 2017, 09:17 AM   #425
Max Headroom is offline Max Headroom  Australia
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Quote:
Originally Posted by PMA View Post
Until you have a chance to sit there or to use better source of sound. Do not make me laugh, the dynamics of the big concert hall you are never able to transfer to your home, and especially not through compressed FM.

I did have similar imaginations, but 40 years ago I was at the practice in Supraphon recording studios for one months, recording mainly the classical orchestral music. For the next 25 years, I stopped any improvements in my home hifi and considered all the hifi efforts as useless. Then I have humbly accepted the fact that it is absolutely impossible to bring a concert sound to my/your sitting room.
I have run 4 stacked large 12" 3 way cabs in my lounge room for a couple of years, somehow the neighbors never complained.
An Aus J1000CS with 500+ fair dinkum watts per side is a fun way of doing anything like justice to AC/DC, R.E.M, Hendrix and the like....the list is long.

At full tilt an hour or so on a bunch of favorite tracks once a fortnight was ample....the sound was dead clean and mega big (ie huge) but 'not loud', that hour was like a live rock show of your choice only better and was a 'fix' of sorts......the rest of the fortnight at 'normal' levels was fine after the full on experience.

So Pavel, yes for orchestral program and real dynamic range recreation I agree it can't quite be done in the home environment.....as for loud rock/blues that's a fun and different story.

Dan.

Last edited by Max Headroom; 11th November 2017 at 09:22 AM.
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Old 11th November 2017, 09:18 AM   #426
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
Quote:
Originally Posted by PMA View Post
Karl, when analysing your Rotel 1kHz tone files, I can see that both of them have high level of background noise and spuriae. Therefore is difficult to evaluate amplifiers sonic contribution without having an original file. Would it be possible to post the original, level matched file, or, at least, the file recorded through direct loopback without Rotel in the signal path?
This is the test track played on the Sony and recorded as before, no amplifier. I used the variable output on the player to get the level in the right ballpark.

Sony Direct
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Old 11th November 2017, 09:21 AM   #427
PMA is offline PMA  Europe
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Thank you Karl! I have to leave now but will be back in the afternoon and will test it and make matching/alignment if necessary.
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Old 11th November 2017, 09:31 AM   #428
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
Quote:
Originally Posted by jcx View Post
don't know what you're saying here - takes too long, files too big, or control panel settings not giving enough resolution?
I haven't been able to get it to create a file with any content when using other than 16 bit, 44.1kHz.

This would be a typical .op command that works for me:
Code:
.wave "C:\users\Karl\Documents\Working Files\level.wav" 16 44.1k V(out)
Just looking at the LT IV manual:

It says, and maybe this is the vital part applicable to my set up,

To read a .wav file with your PC's soundcard make sure that you limit its characteristics:

Format maximum of two channels.
Sampling resolution maximum of 16 bits per channel.
Sampling rate maximum 44100Hz.

I tried in the past and had no luck with anything other than 16/44100. I also thought it was all pure calculation and that the sound card didn't come into it.
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Old 11th November 2017, 10:50 AM   #429
maty tinman is offline maty tinman  Spain
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Default Ella Fitzgerald – Sings Sweet Songs For Swingers

Off topic

Ella Fitzgerald Sings Sweet Songs For Swingers {US 1st Mono Pressing}

foobar2000 1.3.16 / Dynamic Range Meter 1.1.1
log date: 2017-11-11 12:21:28

--------------------------------------------------------------------------------
Analyzed: ? / ?
--------------------------------------------------------------------------------

DR Peak RMS Duration Track
--------------------------------------------------------------------------------
DR14 -0.77 dB -18.48 dB 3:15 ?-A1 Sweet And Lovely
DR14 -1.73 dB -18.68 dB 3:07 ?-A2 Let's Fall In Love
DR14 -1.51 dB -19.38 dB 3:47 ?-A3 Makin' Whoopee
DR14 -0.67 dB -18.43 dB 4:18 ?-A4 That Old Feeling
DR14 -1.69 dB -18.69 dB 2:25 ?-A5 I Remember You
DR12 -3.21 dB -18.93 dB 3:05 ?-A6 Moonlight Serenade
DR12 -1.51 dB -16.34 dB 3:03 ?-B1 Gone With The Wind
DR13 -1.86 dB -17.99 dB 3:25 ?-B2 Can't We Be Friends
DR12 -1.98 dB -17.16 dB 4:33 ?-B3 Out Of This World
DR14 -0.77 dB -18.20 dB 3:05 ?-B4 My Old Flame
DR14 -1.30 dB -19.14 dB 3:47 ?-B5 East Of The Sun (West Of The Moon)
DR13 -0.29 dB -16.34 dB 2:34 ?-B6 Lullaby Of Broadway
--------------------------------------------------------------------------------

Number of tracks: 12
Official DR value: DR13

Samplerate: 96000 Hz
Channels: 2
Bits per sample: 24
Bitrate: 1539 kbps
Codec: FLAC
===============================================


Ella Fitzgerald - Sings Sweet Songs For Swingers (1959) [Hdtracks 24/192]

foobar2000 1.3.16 / Dynamic Range Meter 1.1.1
log date: 2017-11-11 12:22:06

--------------------------------------------------------------------------------
Analyzed: Ella Fitzgerald / Sings Sweet Songs For Swingers (24/192 Stereo)
--------------------------------------------------------------------------------

DR Peak RMS Duration Track
--------------------------------------------------------------------------------
DR11 -0.91 dB -14.74 dB 3:15 01-Sweet And Lovely
DR11 -1.02 dB -15.43 dB 3:06 02-Let's Fall In Love
DR13 -0.96 dB -17.22 dB 3:45 03-Makin' Whoopee
DR11 -0.91 dB -15.70 dB 4:19 04-That Old Feeling
DR11 -0.96 dB -14.88 dB 2:25 05-I Remember You
DR11 -1.58 dB -16.18 dB 3:04 06-Moonlight Serenade
DR11 -0.95 dB -14.92 dB 3:03 07-Gone With The Wind
DR11 -0.94 dB -15.11 dB 3:24 08-Can't We Be Friends?
DR12 -0.99 dB -16.26 dB 4:37 09-Out Of This World
DR12 -0.94 dB -15.23 dB 3:05 10-My Old Flame
DR11 -0.88 dB -15.54 dB 3:48 11-East Of The Sun (West Of The Moon)
DR10 -0.89 dB -13.20 dB 2:26 12-Lullaby Of Broadway
--------------------------------------------------------------------------------

Number of tracks: 12
Official DR value: DR11

Samplerate: 192000 Hz
Channels: 2
Bits per sample: 24
Bitrate: 5418 kbps
Codec: FLAC
===============================================


Hdtracks 24/192 sound brighter. After different tests I like more after resampler the HDtracks to 24/96 with SSRC Intermediate 95%

[IMG] http://maty.galeon.com/WP-imagenes/f...mediate-95.png

Resampler-V DSP plugin for Foobar download | SourceForge.net

Last edited by maty tinman; 11th November 2017 at 10:58 AM.
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Old 11th November 2017, 01:28 PM   #430
PMA is offline PMA  Europe
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DR14 is normal on vinyls of pre-computer audio era. Let's thank to pocket audio for this horrible overcompression we have on new recordings of popular consumer music and remasters of old issues.

Hopefully not so for classical music. The DR of the Toccata violin under test here was 14

Code:
foobar2000 1.3.7 / Dynamic Range Meter 1.1.1
log date: 2017-11-11 15:19:32

--------------------------------------------------------------------------------
Statistics for: ?-tocl
Number of samples: 5518496
Duration: 1:55 
--------------------------------------------------------------------------------

                 Left              Right

Peak Value:    -11.41 dB   
Avg RMS:       -28.89 dB   
DR channel:     14.46 dB   
--------------------------------------------------------------------------------

Official DR Value: DR14

Samplerate:        48000 Hz
Channels:          1
Bits per sample:   24
Bitrate:           1152 kbps
Codec:             PCM
================================================================================
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