SD card sample player bank + mic recorder&looper
Mar 10, 2021 17:55:11 GMT
admin, NightMachines, and 9 more like this
Post by kacpi on Mar 10, 2021 17:55:11 GMT
Hi,
inspired by keurslagerkurt's project (https://forum.aemodular.com/thread/1168/small-microphone-recorder-playback-module) I've created SD card sample player + mic recorder&looper named πSD.
It is basically a very simple project based on two modules: DFRobot Gravity: Voice Recorder Module (based on the ISD1820 recording chip) and DFPlayer mini (mini SD card reader with the ability to read and play samples). The basic operation of DFPlayer mini is the ability to play (and if you want to loop) a selected sample. This module allows you to control either with the arduino or -- in my case -- using the analog keypad. For the DFRobot Gravity: Voice Recorder Module, I made a 3D model of the microphone housing with a red recording button on the side. Use the yellow button to play the recorded sound once, but you can also use the TRIGGER to play a recording. All signals to microphone (vcc, gnd, play, audio) fit into a four-channel mini jack plug. The module additionally has a play / pause function, the next track (when the button is held down, the "volume up" works) and the previous track (when the button is held down, it works as "volume down"). Buttons on the keyboard are connected by resistors of different value to the module.
Basically, this project doesn't require a lot of knowledge of electronics and it's hard to call it a true DIY audio, but it works exactly as I expected (except maybe that the microphone is of poor quality). Nonetheless, the fun of producing PISD (πSD) was a few fun evenings.
The simple level of complexity of the circuit results from my inexperience with DIY audio (it's my first such project) and is a kind of warm-up before the next ones.
Development plans:
• sampling to the memory of individual samples directly from AE Modular (without the need to record files via a computer)
• addition of BUS GATE
• modification of the microphone housing (has many design flaws - but works (
Video and photos:
Cheers!
inspired by keurslagerkurt's project (https://forum.aemodular.com/thread/1168/small-microphone-recorder-playback-module) I've created SD card sample player + mic recorder&looper named πSD.
It is basically a very simple project based on two modules: DFRobot Gravity: Voice Recorder Module (based on the ISD1820 recording chip) and DFPlayer mini (mini SD card reader with the ability to read and play samples). The basic operation of DFPlayer mini is the ability to play (and if you want to loop) a selected sample. This module allows you to control either with the arduino or -- in my case -- using the analog keypad. For the DFRobot Gravity: Voice Recorder Module, I made a 3D model of the microphone housing with a red recording button on the side. Use the yellow button to play the recorded sound once, but you can also use the TRIGGER to play a recording. All signals to microphone (vcc, gnd, play, audio) fit into a four-channel mini jack plug. The module additionally has a play / pause function, the next track (when the button is held down, the "volume up" works) and the previous track (when the button is held down, it works as "volume down"). Buttons on the keyboard are connected by resistors of different value to the module.
Basically, this project doesn't require a lot of knowledge of electronics and it's hard to call it a true DIY audio, but it works exactly as I expected (except maybe that the microphone is of poor quality). Nonetheless, the fun of producing PISD (πSD) was a few fun evenings.
The simple level of complexity of the circuit results from my inexperience with DIY audio (it's my first such project) and is a kind of warm-up before the next ones.
Development plans:
• sampling to the memory of individual samples directly from AE Modular (without the need to record files via a computer)
• addition of BUS GATE
• modification of the microphone housing (has many design flaws - but works (
Video and photos:
Cheers!
