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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like to clear something up about Sample Rate, If the Frame header can look to the metadata block streaminfo for sample rate what (if anything limits it to
<span style="background:yellow;mso-highlight:yellow">655350Hz</span>)? Can all frame headers not just point to streaminfo and it be specified in streaminfo as all 1s ie 2^20-1 = 1,048,575Hz? It would be really good to be able to use 1MHz and beyond for some
of my/our work. Does anything currently support this?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards<o:p></o:p></p>
<p class="MsoNormal">Graham<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Extracts from <a href="https://xiph.org/flac/format.html">https://xiph.org/flac/format.html</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">METADATA_BLOCK_STREAMINFO<o:p></o:p></p>
<p class="MsoNormal"><20> Sample rate in Hz. Though 20 bits are available, the maximum sample rate is
<span style="background:yellow;mso-highlight:yellow">limited by the structure of frame headers to 655350Hz</span>. Also, a value of 0 is invalid.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">FRAME_HEADER<o:p></o:p></p>
<p class="MsoNormal"><span style="background:yellow;mso-highlight:yellow">0000 : get from STREAMINFO metadata block</span><o:p></o:p></p>
<p class="MsoNormal">: <o:p></o:p></p>
<p class="MsoNormal">:<o:p></o:p></p>
<p class="MsoNormal">1100 : get 8 bit sample rate (in kHz) from end of header<o:p></o:p></p>
<p class="MsoNormal">1101 : get 16 bit sample rate (in Hz) from end of header<o:p></o:p></p>
<p class="MsoNormal">1110 : get 16 bit sample rate (in tens of Hz) from end of header<o:p></o:p></p>
<p class="MsoNormal">1111 : invalid, to prevent sync-fooling string of 1s<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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