Re: [MP3 ENCODER] default high pass filtering

[Istvan Varga]

Segher Boessenkool wrote:

> > Perhaps someone could find a wav wich produces this disturbing high frequency
> > echos while encoding with lame due to low frequency signals. This could be
> 
> bassNN_N.wav from SQAM (at low bitrates).
> 
> about anything from "Grotus" as well (_very_ fat bass)

On some signals, however, highpass filters can do bad things as well.
For example, after processing this file
    http://www.geocities.com/SiliconValley/Bit/5683/test1c.zip
with a 5 Hz highpass filter, the peak amplitude increased
to about 52000, resulting in lots of clipped samples.
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