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Topic: Internal Clipping (Read 3550 times) previous topic - next topic
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Internal Clipping

I've been using musepack with xlevel and I am glad that the best lossy audio format can handle internal clipping in all by the most terrible cases. However, I'm curious about other formats as well. Is internal clipping a problem with MP3's and OGG's? Do either of these formats offer ways to combat it effectively like xlevel does with Musepack?
iTunes 10 - Mac OS X 10.6
256kbps AAC VBR
iPhone 4 32GB

Internal Clipping

Reply #1 –
Internal clipping is an MPC bug. The other formats do not suffer from it.

Internal Clipping

Reply #2 –
Quote
Internal clipping is an MPC bug. The other formats do not suffer from it.

And one which should be fixed in SV8 if I understand correctly.  I don't know if the current pseudo-SV8 have the problem or not though..

Internal Clipping

Reply #3 –
Quote
And one which should be fixed in SV8 if I understand correctly.  I don't know if the current pseudo-SV8 have the problem or not though..


Frank Klemm said that this is not a bug, it's a design flaw from the early stages of MP+, and that a "clean" solution takes 5 minutes to program, but would break compatibility with SV7 (thus the "hotfix" with --xlevel).

The SV8 test versions are already fixed. From the MPC 1.91z changelog:

Quote
7 bit scale factors (no internal clippings anymore) for 190 dB possible dynamics.