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24 bit vinyl clips, Examples of 24 bit vinyl and bit-reduced versions
Gretschguy
post Feb 15 2012, 19:03
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Attached are several clips for vinyl rips, each in (24/48) and (16/44.1) -- I have many more but 7 I filled up my attachment space.

I used Izotope's SRC and MBit+ algorithms to do the conversion, I converted sample rate first and then bit rate.

The rips were done using Thorens Turntable, Lyra Delos cartride, Parasound phono pre, Burl B2 ADC, Lynx AES16 card, Pure Vinyl software.

If anyone has better conversion technology than Izotope I would be interested to hear those samples for my own comparison, as a practical matter I would like to have the best possible bit reduced versions in my library in addition to my 24 bit versions.

If anyone is interested in specific notes on what I'm hearing as the differences in my playback system then let me know.

The sources are:

Dire Straits "Romeo And Juliet"
Prefab Sprout "Faron Young"
Yes "Roundabout"
The National "Bloodbuzz Ohio"
Cat Stevens "Father And Son"
Roxy Music "Running Wild"
John Lennon "Mind Games"

Thanks for checking these out.




Attached File(s)
Attached File  Romeo_And_Juliet__30s___24_48_.wav ( 6.98MB ) Number of downloads: 171
Attached File  Romeo_And_Juliet__30s___16_44_.wav ( 4.31MB ) Number of downloads: 120
Attached File  Roundabout__30s___24_48_.wav ( 8.53MB ) Number of downloads: 90
Attached File  Roundabout__30s___16_44_.wav ( 5.27MB ) Number of downloads: 78
Attached File  Bloodbuzz_Ohio__30s___24_48_.wav ( 8.37MB ) Number of downloads: 88
Attached File  Bloodbuzz_Ohio__30s___16_44_.wav ( 5.16MB ) Number of downloads: 73
Attached File  Father_And_Son__30s___24_48_.wav ( 8.37MB ) Number of downloads: 102
Attached File  Father_And_Son__30s___16_44_.wav ( 5.17MB ) Number of downloads: 101
Attached File  Faron_Young__30s___24_48_.wav ( 7.9MB ) Number of downloads: 159
Attached File  Faron_Young__30s___16_44_.wav ( 4.88MB ) Number of downloads: 88
Attached File  Running_Wild__30s___16_44_.wav ( 5.11MB ) Number of downloads: 86
Attached File  Running_Wild__30s___24_48_.wav ( 8.27MB ) Number of downloads: 84
Attached File  Mind_Games__30s___16_44_.wav ( 5.05MB ) Number of downloads: 70
Attached File  Mind_Games__30s___24_48_.wav ( 8.24MB ) Number of downloads: 89
 
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mixminus1
post Feb 15 2012, 22:55
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@Gretschguy, a couple questions:

1) You said earlier that you were using your Burl to capture at 24/96, but the samples you posted are 24/48. Are these files new captures performed with the Burl running @ 48 kHz, or downsampled from your original 96 kHz captures?

2) Regarding performing an ABX test with your system: What have you been using for playback of your 24-bit files (and related to that, exactly how have you been comparing the "hi-res" and downsampled versions)? The output of the Lynx card to your Burmester DAC? If so, and you're running Windows, the freeware foobar2000 audio player has an ABX plugin that would make performing an ABX test simple, especially as foobar can be set to always output 24-bit audio to your audio interface, regardless of whether the file being played is 16 or 24 bit (16-bit files are just padded with zeros).

Comparing different sample rates could be tricky, though, as although foobar has no problem outputting any sample rate known to man, your DAC will most likely mute while switching rates - or I should say, *hopefully* it mutes, and doesn't pop/click/etc - and depending on how long that mute lasts, it could make ABX'ing difficult.


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Gretschguy
post Feb 15 2012, 23:27
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QUOTE (mixminus1 @ Feb 15 2012, 22:55) *
@Gretschguy, a couple questions:

1) You said earlier that you were using your Burl to capture at 24/96, but the samples you posted are 24/48. Are these files new captures performed with the Burl running @ 48 kHz, or downsampled from your original 96 kHz captures?

2) Regarding performing an ABX test with your system: What have you been using for playback of your 24-bit files (and related to that, exactly how have you been comparing the "hi-res" and downsampled versions)? The output of the Lynx card to your Burmester DAC? If so, and you're running Windows, the freeware foobar2000 audio player has an ABX plugin that would make performing an ABX test simple, especially as foobar can be set to always output 24-bit audio to your audio interface, regardless of whether the file being played is 16 or 24 bit (16-bit files are just padded with zeros).

Comparing different sample rates could be tricky, though, as although foobar has no problem outputting any sample rate known to man, your DAC will most likely mute while switching rates - or I should say, *hopefully* it mutes, and doesn't pop/click/etc - and depending on how long that mute lasts, it could make ABX'ing difficult.


Mixminus:

(1) I capture at 24/96 and converted directly from there to 16 / 44.1, I also converted down to 24 / 48 and I compared on my Burmester system the 16 / 44/1 and 24 / 48. My Burmester DAC is limited to 48 kHz sample rates. I was going to upload all three samples but there was only 100MB available to me so I just uploaded exactly what I had compared on my system.

(2) My primary listening system is a full Burmester car audio system which includes Burmester DAC conversion, Burmester speakers, and Burmester amplification. I can't attach a soundcard to that system. I can however play back wav files of different sample rates and bit depths with a limit of 24 / 48. According to Burmester the DAC reclocks the wav files, perhaps thats a clue to something going on.

My studio machine uses an older MOTU DAC and is capable for 24 / 96, however, overall that system does not compare with the Burmester system and is not my target listening environment that I've been optimizing towards. I would not trust that DAC for much critical listening given that I experienced a major leap in sound quality when I upgraded the MOTU ACD to Burl last year -- I listen to the Burmester a couple hours each day often at loud volumes so I'm optimizing my vinyl replay to that system -- and I also rely upon the Burmester for my own studio work as I find it provides a great sound. For critical listening tests I listen without the car moving and without engine noise, it's a quiet environment and I play my music loud.

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greynol
post Feb 15 2012, 23:33
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QUOTE (Gretschguy @ Feb 15 2012, 14:27) *
My studio machine uses an older MOTU DAC and is capable for 24 / 96, however, overall that system does not compare with the Burmester system and is not my target listening environment that I've been optimizing towards. I would not trust that DAC for much critical listening given that I experienced a major leap in sound quality when I upgraded the MOTU ACD to Burl last year

Once again, this is not compliant with #8 in our Terms of Service, to which you agreed to follow in order to participate here.

This post has been edited by greynol: Feb 15 2012, 23:37
Reason for edit: Added link in the event that our rules have not been read by Gretschguy.


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Posts in this topic
- Gretschguy   24 bit vinyl clips   Feb 15 2012, 19:03
- - Wombat   It shouldn´t be of any advantage to use iZotope di...   Feb 15 2012, 19:35
- - Wombat   I gave this Faron Young sample a try and played it...   Feb 15 2012, 20:44
|- - Gretschguy   QUOTE (Wombat @ Feb 15 2012, 20:44) I gav...   Feb 15 2012, 21:57
|- - greynol   QUOTE (Gretschguy @ Feb 15 2012, 12:57) D...   Feb 15 2012, 22:09
|- - Gretschguy   QUOTE (greynol @ Feb 15 2012, 22:09) QUOT...   Feb 15 2012, 22:28
- - pdq   An interesting experiment for Gretschguy to perfor...   Feb 15 2012, 21:09
|- - Gretschguy   QUOTE (pdq @ Feb 15 2012, 21:09) An inter...   Feb 15 2012, 21:43
- - pdq   From the website for the DAC, it appears that it d...   Feb 15 2012, 21:52
|- - Gretschguy   QUOTE (pdq @ Feb 15 2012, 21:52) From the...   Feb 15 2012, 22:00
- - greynol   Let there be no doubt that any audible differences...   Feb 15 2012, 22:02
|- - Gretschguy   QUOTE (greynol @ Feb 15 2012, 22:02) Let ...   Feb 15 2012, 22:17
- - greynol   It's readily accepted that best practice is to...   Feb 15 2012, 22:21
- - Wombat   QUOTE (Gretschguy @ Feb 15 2012, 21:57) W...   Feb 15 2012, 22:31
|- - Gretschguy   QUOTE (Wombat @ Feb 15 2012, 23:31) QUOTE...   Feb 15 2012, 22:40
- - greynol   If you cannot demonstrate that what you're hea...   Feb 15 2012, 22:35
|- - Gretschguy   QUOTE (greynol @ Feb 15 2012, 23:35) If y...   Feb 15 2012, 22:41
- - AndyH-ha   What are you asking for? Do you have a problem to ...   Feb 15 2012, 22:39
- - mixminus1   @Gretschguy, a couple questions: 1) You said earl...   Feb 15 2012, 22:55
|- - Gretschguy   QUOTE (mixminus1 @ Feb 15 2012, 22:55) @G...   Feb 15 2012, 23:27
|- - greynol   QUOTE (Gretschguy @ Feb 15 2012, 14:27) M...   Feb 15 2012, 23:33
- - greynol   He could just up-convert to the highest bit depth/...   Feb 15 2012, 23:16
- - xnor   Thanks for the samples. A simple analysis showed t...   Feb 16 2012, 00:31
|- - Gretschguy   QUOTE (xnor @ Feb 16 2012, 01:31) Thanks ...   Feb 16 2012, 03:49
- - mjb2006   I wouldn't worry about using SoX. Izotope...   Feb 16 2012, 03:43
|- - Gretschguy   QUOTE (mjb2006 @ Feb 16 2012, 04:43) I wo...   Feb 16 2012, 03:51
- - cliveb   OK, I have listened to Gretschguy's vinyl clip...   Feb 16 2012, 10:17
- - 2Bdecided   Sorry to reply a third time! I've been en...   Feb 20 2012, 14:34
- - Gretschguy   QUOTE (2Bdecided @ Feb 20 2012, 15:34) So...   Feb 21 2012, 03:24


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