[Paranoia] Distorted sound after grabbing

[Bill Davidsen]

Sven Heithecker wrote:
> Hi List-Members,
>   

Excuse the much delayed reply, I marked this "later" and it got MUCH later.
> I do have a strange problem grabbing one CD (Night of the Proms, 
> Vol.10/2003". After grabbing, the sound is distorted. Looking at the 
> file using an audio editor e.g. Audacity to exclude playback 
> problems, it seems that several samples are clipped.
>   

It is always possible that the data on the CD really is clipped. You 
might try reripping with cddatowav (from cdrecord) and see if the data 
looks the same. That software uses a modified paranoia library.
> I got this problem with three different ROMs (Pioneer DVD-ROM 
> ATAPIModel DVD-115 0127, SONY DVD RW DRU-500A, and VDRW SOSW-833S 
> VRS3 (Acer notebook)), using cdparanoia 9.8 and 10.0. No difference.
>
> Of course, normal playback using my stereo works ok.
>   

Your equipment may be compensating in some way for the problem, the 
chances of three readers being bad in the same way are very low.
> >From looking at the sources, I don't expect cdparanoia doing any nasty 
> things like scaling or so.
>
> Any ideas ?
>   

My thoughts are not only delayed, but fairly obvious. Occam's Razor 
here, if three readers agree the data are clipped, suspect the odd man 
out, in this case your normal playback hardware.

I assume you burned a CD of the clipped data and played it on your 
normal playback hardware to see if the clipping was obvious there.
> Best Regards, Wumpus
>
>   


-- 
Bill Davidsen <davidsen at tmr.com>
  "Woe unto the statesman who makes war without a reason that will still
  be valid when the war is over..." Otto von Bismark