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--- microphones [2023/04/01 16:20] – [recording ultrasonic] yair
+++ microphones [2023/04/01 16:26] – [recording ultrasonic] yair
@@ Line 22: / Line 22: @@
 ==== recording ultrasonic ====
 === spu0410lr5 ===
 using the MEMEs microphone, range of 100 Hz to 80 kHz
+{{:pasted:20230401-162507.png }}
 == from manufacture ==
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   * {{:analog-and-digital-mems-microphone-design-considerations-ms-2472.pdf|Analog and Digital MEMS Microphone Design Considerations}} [3]
   * {{:knowles_spu0410lr5h_qb-2935249.pdf|SPU0410LR5H}} datasheet
+  * https://wiki.sipeed.com/soft/maixpy/en/develop_kit_board/module_microphone.html
-{{:pasted:20230401-142901.png?400}}
+{{ :pasted:20230401-142901.png?400}}
-{{:pasted:20230401-142908.png?400}}
+{{ :pasted:20230401-142908.png?400}}
 == in the field ==
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 [1] see also other work from  [[https://steinhardt.nyu.edu/people/charlie-mydlarz|charlie-mydlarz]], and his [[https://www.cmydlarz.com/|website]] and [[https://steinhardt.nyu.edu/marl|marl]] \\
 [2] https://www.justinsalamon.com/publications.html \\
-[3] good info at https://www.zachpoff.com/resources/cheap-microphones-for-ultrasound/ \\
+[3] good info at https://www.zachpoff.com/resources/cheap-microphones-for-ultrasound/
+----
+using [[https://www.prc68.com/I/PSOSC.shtml|polaroid]] hack for bat listening
+{{:pasted:20230401-162032.png}}
+{{:pasted:20230401-162159.jpeg?400}}
+----
+https://www.eevblog.com/forum/projects/20khz-to-120khz-acoustic-transducer-(speaker)/
 ==== sonyc ====