<term><option>-b</option> <replaceable>#</replaceable>, <option>--blocksize</option>=<replaceable>#</replaceable></term>
<listitem>
- <para>Specify the block size in samples. The default is 1152 for -l 0, else 4608; must be one of 192, 576, 1152, 2304, 4608, 256, 512, 1024, 2048, 4096, 8192, 16384, or 32768 (unless --lax is used)</para>
+ <para>Specify the block size in samples. Subset streams must use one of 192, 576, 1152, 2304, 4608, 256, 512, 1024, 2048, 4096 (and 8192 or 16384 if the sample rate is >48kHz).</para>
</listitem>
</varlistentry>
<term><option>-l</option> <replaceable>#</replaceable>, <option>--max-lpc-order</option>=<replaceable>#</replaceable></term>
<listitem>
- <para>Set the maximum LPC order; 0 means use only the fixed predictors</para>
+ <para>Specifies the maximum LPC order. This number must be <= 32. For Subset streams, it must be <=12 if the sample rate is <=48kHz. If 0, the encoder will not attempt generic linear prediction, and use only fixed predictors. Using fixed predictors is faster but usually results in files being 5-10% larger.</para>
</listitem>
</varlistentry>