nick_charles
Headphoneus Supremus
- Joined
- Feb 26, 2008
- Posts
- 3,180
- Likes
- 336
From : Time on earth: Crowded House: Track One: Nobody Wants to
For a while I have thought that my MP3 version (Lame 3.98, VBR 0) sounded a bit rough (distorted) epecially on my WD HDTV. So today I took the MP3(Lame 3.98, VBR 0) and a fresh Wav rip. I used the same Software and PC that I used to rip/encode the track previously.
First I ran both through Cool Edit Pro, the Wav file shows 8 possibly clipped samples, the MP3 shows over 400 !. The track is recorded with a generally high average level it peaks at 0db a lot on the Wav file.
Then I did a DBT in Foobar I homed in one a particular small segment and I got 16/20 i.e P < 0.006, it was quite tough , my ears are not the best but it is the first time I have ever been able to positively DBT between Wav and a VBR 0 mp3 file. I did not use replay gain since the overall levels were within 1/100th of a db.
What is more puzzling is why my WD HDTV/optical/Entech sounded more distorted than my PC/Musiland 01 USD USB to Optical/Entech
I have done PC/HDTV comparisons before and always come up null, but here the difference is gross. I even swapped digital cables
Okay, I took the optical feed from my WD HDTV and recorded it in Audacity from a USB ADC with optical input. It sounds just as bad through the PC now, but no worse, but in Cool Edit pro it now shows 54,000 possibly clipped samples. It looks like the WD is cranking up the digital output which being already quite often at 0db appears to add a substantial amount of clipping. The overall level is upped by about 1db which is not a lot unless you are bang on max
Well, there you go then....
For a while I have thought that my MP3 version (Lame 3.98, VBR 0) sounded a bit rough (distorted) epecially on my WD HDTV. So today I took the MP3(Lame 3.98, VBR 0) and a fresh Wav rip. I used the same Software and PC that I used to rip/encode the track previously.
First I ran both through Cool Edit Pro, the Wav file shows 8 possibly clipped samples, the MP3 shows over 400 !. The track is recorded with a generally high average level it peaks at 0db a lot on the Wav file.
Then I did a DBT in Foobar I homed in one a particular small segment and I got 16/20 i.e P < 0.006, it was quite tough , my ears are not the best but it is the first time I have ever been able to positively DBT between Wav and a VBR 0 mp3 file. I did not use replay gain since the overall levels were within 1/100th of a db.
What is more puzzling is why my WD HDTV/optical/Entech sounded more distorted than my PC/Musiland 01 USD USB to Optical/Entech
I have done PC/HDTV comparisons before and always come up null, but here the difference is gross. I even swapped digital cables
Okay, I took the optical feed from my WD HDTV and recorded it in Audacity from a USB ADC with optical input. It sounds just as bad through the PC now, but no worse, but in Cool Edit pro it now shows 54,000 possibly clipped samples. It looks like the WD is cranking up the digital output which being already quite often at 0db appears to add a substantial amount of clipping. The overall level is upped by about 1db which is not a lot unless you are bang on max
Well, there you go then....