Environmental Sound Recorder for Teensy 3.6. It builds on the BasicAudioLogger, but will be developed into a tool suited for environmental sound monitoring and bio-acoustic research.

More information can be found in the build-in Wiki

The microSoundRecorder_dev branch contains code the is work in progress (marked below with (dev))

• ADC, ADC_Stereo
• I2S, I2S_32, I2S_QUAD, I2S_32_MONO
• I2S_TYMPAN (dev)
• I2S_TDM (dev)

The I2S_32 mode allows acquisition of two 24 bit MEMS microphones

The I2S_32_MONO mode allows acquisition of one 24 bit MEMS microphone, reducing also used disk space

The I2S_TYMPAN mode allows the high quality TYMPAN audio board https://tympan.org/ to be used as audio recorder

The I2S_TDM mode allows multiple digital(e.g. ICS-52000 ) microphones be used in TDM mode

• variable sampling frequency
• scheduled acquisition
• audio-triggered archiving
• single file / event archiving
• variable pre-trigger
• startup menu on demand
• logging of environmental data (temperature, pressure, humidity, lux)

• SdFat-beta (Bill Greiman's uSD filing system: https://github.com/greiman/SdFat-beta)
• The file SdFat.h in src directory must me renamed to SdFat_beta.h
• The File SdFatConfig.h must be edited to reflect user needs

• BME280 (temperature,pressure, humidity sensor: https://github.com/bolderflight/BME280)
• BH1750 (light sensor: https://github.com/claws/BH1750)

this code is assumed to be developed further, please check regularily applied changes

this directory contains examples recorded during testing and in the field

this directory contains useful data sheets

• data offload option