* <td>When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an
* external DAC.</td>
* </tr>
- * <tr>
- * <td>AUDIO_SAMPLE_FREQUENCY</td>
- * <td>Descriptors.h</td>
- * <td>Gives the audio sample rate per channel for the audio stream, in Hz.</td>
- * </tr>
* </table>
*/