Recent content by WesB

Hi Antonio: Using amazon as an indicator it seems the Pi's are getting closer to normal (specifically the Pi 3's and Pi 4's). I'm still interested in your project and in particular your sound card portion since it is hard to find a good one that has a direct connection the Pi. Hopefully the...

Good to hear from you again, Antonio. I understand the situation with chips and the currently outragious prices for the Raspberry Pi's that have been caused by the pandemic and the Ukraine war. I'm sure we all hope both of these situations are solved soon. I remember you had some experience...

Hi Antonio: Its been awhile and I thought I would send a note to see how things are going on the project. As I had indicated I am very interested in the sound card portion of you project and was wondering if you have achieved the performance you had hoped for. Particularly, noise levels at...

Hi Antonio: Thanks for all the hard work. When you complete this sound card will you make it available for sale as a separate board? My current need is for the sound card board to replace the Hifiberry board in my test setup with the best 192k/24 board designed for the Raspberry PI which I...

Hi Antonio: Glad to hear you are still working on the project. Wasn't sure since it had been a while since you posted. Since the Raspberry Pi's operating system is not a real time OS the Hifiberry DAC+ADC PRO apparently has a time base built-in. Does your sound card include a time base or...

Hi Antonio: I would be very interested in the results of the noise improvement from your sound card. As we've discussed earlier the majority of sound boards on the market for the raspberry pi are not as quiet as one would like. I have the hifiberry dac+ adc pro. but would like to know if...

Hi Antonio: Good to see the progress on the sound card. Will it be able to run at 192/24? As we discussed before I have both the audioinjector ultra and the hifiberry adc dac pro but am interested in very low levels of distortion and the 3 ultras have some serious noise at about 200khz...

Hi Antonio: Another similarity of our equipment is the linkwitz mod of the wm61a Panasonic mic capsule 2 wire connection (part C in diagram of message number 33 of this thread). Back in the day there were rumors that these capsules (or the wm60a) were so good at bass response they were used...

Hi Antonio: Just to let you know, you are not alone. For quite a while I have been using the Raspberry Pi Zero with a couple of the AudioInjector boards. I had sponsored (kickstarter) the AudioInjector stereo card at 96khz and the AudioInjector Ultra 2 card at 192khz. I wanted no less than...

Thanks for the reply. I'll check it out. Wes

Is there a procedure that would allow me to use an SPL meter which has no output in concert with a non-USB sound card to calibrate the REW SPL meter. I have an SPL meter built into a multi-meter and a microphone with pre-amp. I have the calibration for the mic (a Panasonic wm61a capsule based...

One more bit of info = the audio injector sound cards have been developed with kickstarter. The last offering should be available soon called the ultra 2. It will run 192/24 and cost around $25. At least that is the price that supporters paid in pledges for each sound card. The other cards I...

Hi again: You might want to also look at the following topic on this forum. Wes Room EQ Wizard on RPi3 and HiRez ADC

Hi Anthony, It looks feasible to me but I have just begun the long process of trying to make a RPi zero work. I'm trying it in Raspbian but the major speed up I will be trying is the sound card from Audio-Injector that is for stereo use but is a native sound card (a hat not USB) specifically...

I guess timing is everything. I just updated to yesterday's full version release V5.19 and it works for loopback sound card calibration. Wes