DIY hardware and software bakings
2020-09-17 Update: prebuild patched modules are available for moOde. In November 2017 the Raspberry Linux kernel is updated to support the 384kHz for the i2s bus. Before that time the stock kernel was limited to 192kHz and the generic i2s master driver rpi-dac still is. With i2s bus the Pi can be used as master …
Continue reading “Raspberry as generic i2s master at 384kHz”
The current power distribution can be cleanup. Multiple wires in a too small terminal block and separated relay board. Time to clean it up. My build of the DDDAC1794 The 230VACpower distribution exists out of: 1x AC 230VAC coming from the mains connector 1x Power Supply for the DAC 1x Toroidal Transformer with dual secondaries …
2020-09-04: The custom sox recipes patch has been accepted by MPD on the master branch! 2020-09-14: The custom sox recipes are part of the upcoming moOde 7.0.0 release. MoOde even provide a nice GUI for it. MPD can use the famous soxr library for resampling. Soxr is very flexible with the configuration of the resampler. …
2020-09-14: The MPD soxr selective resample modes are part of the upcoming moOde 7.0.0 release. MoOde even provide a nice GUI for it. Earlier I wrote about moOde with MPD Selective Resample about sox and resample. With selective resample takes in account if source sample rate is multiple of 44.1kHz or 48kHz. With selective resample …
2020-09-14: More flexible version is available, see MPD soxr selective resample modes .The MPD soxr selective resample modes are part of the upcoming moOde 7.0.0 release. MoOde even provide a nice GUI for it. Music Player Daemon is a daemon used in a lot of (Raspberry Pi) audio distributions. Including the one that I use; …
For quite some time I’m using the Allo Isolator for galvanic isolation between the Pi and the HifiBerry. Everything was upsampled to 192kHz and works great. No more cracks, deep dark sound. Only when starting playing with different sample rates (44.1kHz based) MPD hangs. Before using the isolator it did work. If seems that something …
2020-09-14 The upcoming 7.0.0 release of moOde contains another patch of me, that will make the one below obsolete. The moOde Audio Player MPD configuration only support a very small subset of the available MPD options. The one that are supported comes with a very nice user interface. Only sometimes I just want to try …
This article is about building my own version of the DDDAC 1794 NOS DIY dac. Designed by Doede Douma. The NOS stands for Non Over Sampling DAC, without any filtering. More info: There is a massive thread diyaudio about the DDDAC 1794; nos-192-24-dac-pcm1794-waveio-usb-input. It can be a little overwhelming; it contains today almost 8000 messages. …
During the a repair of an Amiga 2000 keyboard I didn’t found it very handy to use my Amiga as tester for a defect keyboard: During testing, to prevent damage with unplug or plugin of the keyboard, it requires power down of the Amiga.Which takes a lot of time and proceedings (the boot, shutdown etc) …
My kids like easy coding with Scratch or mBlock. I found a nice Arduino shield for them to play with, only it could only be programmed with the Arduino IDE. Luckily mBlock provided a way to extent the mBlock environment. The Arduino Multi Function Shield is a low cost shield provided by several suppliers.It contains …