Phil Schatzmann

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Machine Sound

Arduino

TTS with Pre-Recorded Audio: Preparing the Audio Files

I the last Blog I introduced you to my new Simple TTS Arduino Library which is available on Github. I used the Text-to-Speech (TTS) functionality of Google Translate to generate the mp3 files, which was quite tedious to do manually. Then I executed xxd to generate a .h file from Read more…

By pschatzmann, 3 years20. February 2022 ago
Arduino

TTS with Pre-Recorded Audio: Building a Talking Clock

Last year I was digging into Arduino Based TTS Solutions and came to the conclusion that the available engines will not provide any quality audio and therefore recommended to consider an approach which is based on recorded audio samples. Today I took the opportunity to create the new arduino-simple-tts project Read more…

By pschatzmann, 3 years16. February 2022 ago
Arduino

Maximilian DSP on the Arduino ESP32 ?

Quite some time ago I have identified Maximilian as interesting tool which can be used to implement synthezisers. Maximilian is a cross-platform and multi-target audio synthesis and signal processing library. So I was wondering if it is possible to use it on Arduino based Microcontrollers. In the meantime the adapted Read more…

By pschatzmann, 3 years11. February 2022 ago
Arduino

Building an Arduino ESP32 Audio Bluetooth Receiver with output to SPDIF with just a few lines of code.

The last couple of days I have spent to add SDIF audio output support to my Arduino AudioTools library and I would like to thank joba-1 for testing the solution. Together with my ESP32-A2DP Bluetooth library we can build now a Bluetooth receiver that outputs the audio signals as SPDIF Read more…

By pschatzmann, 3 years1. February 2022 ago
Arduino

AAC Encoding on the AudioKit

For quite some time I was wondering why my arduino-fdk-aac library was using so much memory for the encoding of AAC files. Now that I have an AudioKit working with the debugger it was easier to analyze the situation and – oh boy – I found quite some errors. So Read more…

By pschatzmann, 3 years27. January 2022 ago
Arduino

Using the ESP32 LyraT Audio Board with Arduino

After using the AI Thinker AudioKit I wanted to make sure that my libraries also work with the ESP32 LyraT Board from Espressif. There were basically just 2 stumbling blocks: Deploying Code: From the AudioKit I was used that I can plug in the UART cable and upload the code Read more…

By pschatzmann, 3 years24. January 2022 ago
Arduino

Using the SAM TTS Engine with the Audiokit

I decided to use my SAM TTS Library with the AI Thinker Audio Kit. Unfortunately I found quite some bugs in my library that I needed to correct first, but now it is working as expected. Here is the Arduino Sketch #include “sam_arduino.h” #include “AudioTools.h” #include “AudioLibs/AudioKit.h” AudioKitStream kit; SAM Read more…

By pschatzmann, 4 years29. December 2021 ago
Arduino

Microcontrollers and Apple MIDI

My Arduino MIDI Library is using Arduino Streams as a basic design feature and therefore it supports Bluetooth, TCP/IP and UDP. I am usually programming on an old Macbook, so I was wondering if I can extend my library to support Apple MIDI as well. After some research I found Read more…

By pschatzmann, 4 years25. December 2021 ago
Arduino

Microcontrollers and MIDI – Using the Bluetooth Serial Interface

In one of my previous posts I gave an overview on how we can connect a microcontroller to a MIDI Device using a physical serial connection with the help of my Arduino MIDI Library. This solution is very similar, but replaces the physical connection with Serial Bluetooth This solution will Read more…

By pschatzmann, 4 years22. December 2021 ago
Arduino

Microcontrollers and MIDI – Using the Serial Interface

In one of my previous posts I gave an overview on how we can connect an microcontroller to a MIDI Device. The simplest solution is to connect the MIDI Keyboard to the PC and use a FTDI serial adapter to communicate with your microcontroller. Because the keyboard is only sending Read more…

By pschatzmann, 4 years22. December 2021 ago

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Phil Schatzmann
Rue du Biais 24 B
1957 Ardon
Switzerland

phil.schatzmann@gmail.com

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