Something

Spc_Emu.cpp line 290:

	count = long (count * resampler.ratio()) & ~1;
	
	count -= resampler.skip_input( count );

Replace these lines with

	if ( sample_rate() != native_sample_rate )
	{
		count = long (count * resampler.ratio()) & ~1;
		count -= resampler.skip_input( count );
	}