Head-Fi.org › Forums › Equipment Forums › Sound Science › Double blind test 128Kbps vs lossless? I'll be amazed if you can tell much difference
New Posts  All Forums:Forum Nav:

Double blind test 128Kbps vs lossless? I'll be amazed if you can tell much difference - Page 17

post #241 of 257

Well I'm talking nothing of the actual waveform in the music here-- only bit depth.

post #242 of 257
Quote:
Originally Posted by TMRaven View Post

Well I'm talking nothing of the actual waveform in the music here-- only bit depth.


Bit depth is the exact same, 16 bits.

post #243 of 257

16 bits dithered of course, mp3 bitdepth isn't comparable to PCM.

 

It might just be me or the abx tests I've done.  The most noticeable difference in perceived 'loudness' is the Barrio San Miguel song on mp3ornot.  The other two songs I struggle to guess right at times, but the punchiness in the dynamics on that song has led me to abx with 100% accuracy from all the times I've tried it.

post #244 of 257
To tell the difference between 128kbps and lossless, that's easy. 256kbps to 320 kbps? not so much
post #245 of 257
Quote:
Originally Posted by TMRaven View Post

16 bits dithered of course, mp3 bitdepth isn't comparable to PCM.

 

It might just be me or the abx tests I've done.  The most noticeable difference in perceived 'loudness' is the Barrio San Miguel song on mp3ornot.  The other two songs I struggle to guess right at times, but the punchiness in the dynamics on that song has led me to abx with 100% accuracy from all the times I've tried it.


I remember that song, the loss of some HF information leads to a less sense in dynamics, which is why it sounded less punchy. I don't think it has much to do with the bit depth.

Same thing with drums too, more treble can make it seem like there is more impact.
post #246 of 257

For me, here are my observations. Sennheiser HD800 - ALO Continental - CLAS - iPod Classic; Running this song.

 

Maroon 5 - Tangled (128 Kbps): Soundstage seems to be more congested, not as micro detailed, and a bit muddled.

Maroon 5 - Tangled (256 Kbps) - A lot better, more airness, not as congested, seems like I can listen "in between the lines".

Maroon 5 - Tangled (320 Kbps) Very little difference between 256 Kbps in terms of micro detail, might be mental.

Maroon 5 - Tangled (ALAC Lossless) - Can't distinguish a difference between 320 Kbps. I think I hear a slight bit of micro detail at the get go though. More than likely just mental.

post #247 of 257

The sound of one of the tracks has more body, it's fuller.  I don't know what 128kbps would sound like, so I guess the fuller one is lossless.  biggrin.gif  

However there is a difference between the two tracks.

 

Sony XA3000ES disc player  >  Apex Peak amplifier  >  Sennheiser HD800 headphones.

 

By the way, I was listening to them in a sleepy mode so my answer can be different next time.  

post #248 of 257
Quote:
Originally Posted by Austin Morrow View Post

For me, here are my observations. Sennheiser HD800 - ALO Continental - CLAS - iPod Classic; Running this song.

 

Maroon 5 - Tangled (128 Kbps): Soundstage seems to be more congested, not as micro detailed, and a bit muddled.

Maroon 5 - Tangled (256 Kbps) - A lot better, more airness, not as congested, seems like I can listen "in between the lines".

Maroon 5 - Tangled (320 Kbps) Very little difference between 256 Kbps in terms of micro detail, might be mental.

Maroon 5 - Tangled (ALAC Lossless) - Can't distinguish a difference between 320 Kbps. I think I hear a slight bit of micro detail at the get go though. More than likely just mental.

 

Using an HD800 for this could almost be considered cheating.  ;)

Try running those files through an ABX app and see if you're still able to identify what is what or what is different from what.  ABXer is a testing app for OSX.  I believe there's also some ABX apps for iOS as well.

post #249 of 257
Quote:
Originally Posted by Ham Sandwich View Post

 

Using an HD800 for this could almost be considered cheating.  ;)

Try running those files through an ABX app and see if you're still able to identify what is what or what is different from what.  ABXer is a testing app for OSX.  I believe there's also some ABX apps for iOS as well.



Alright, will do. :)

post #250 of 257

i have done a lot of blind testing using foobar 2000, however i can't really listend to any lossy formats including vorbis q10(AoTuV), mp3 320kbps, mp3 v0(lame) anymore, i started to listend a lot more to musik after i downloaded my first flac album, after that album there was no such thing as turning back($20 speakers), i have never failed to hear the differense between flac and lossy with my current setup

post #251 of 257
Quote:
Originally Posted by anjora View Post

i have done a lot of blind testing using foobar 2000, however i can't really listend to any lossy formats including vorbis q10(AoTuV), mp3 320kbps, mp3 v0(lame) anymore, i started to listend a lot more to musik after i downloaded my first flac album, after that album there was no such thing as turning back($20 speakers), i have never failed to hear the differense between flac and lossy with my current setup


Now that I'll need results to believe.

post #252 of 257
Quote:
Originally Posted by Head Injury View Post


Now that I'll need results to believe.



Same here. Any chance you could get it on video? biggrin.gif

post #253 of 257

Listening with some DT 770 Pro's through a Fiio e10..

..without peeping, I heard barely a difference but from looking closely at the bass I'd say the first had better bass detail and maybe slightly smoother mids?

 

I don't listen to classical so thats my excuse! and I cab to learn the track and its classical wink_face.gif

 

Seems I'm not the only one stumped, wish I knew the answer though..and what do I win if right?


Edited by Personnel Jezuz - 1/15/12 at 3:38pm
post #254 of 257

12 out of 12, by testing the transient at about 23.6s. With the mp3 version (the first file), the attack is slightly slower and smeared. But this track generally does not bring out the weaknesses of mp3, as it lacks cymbals, sharp attacks, and "airy" high frequency content. So I find it difficult to tell apart much of it.

 


Edited by stv014 - 1/16/12 at 2:51pm
post #255 of 257
I admit that I could not tell the difference between the files in the opening post.

I reached a conclusion a while back; if an A-B comparison is necessary to identify a difference in audio quality, that difference isn't significant enough to worry about. YMMV.
Edited by Jaywalk3r - 1/17/12 at 12:48am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Sound Science
Head-Fi.org › Forums › Equipment Forums › Sound Science › Double blind test 128Kbps vs lossless? I'll be amazed if you can tell much difference