Prototype Pc Audio Fix

[Kylee Evancho]

Wouldlike to +1 this! Particularly for folks who work in the ed tech space, audio is key to the experience. Having audio in prototypes would really allow companies like Duolingo and Duolingo ABC to use Figma as a more robust prototyping / testing tool.

Adobe XD currently has the ability to add Audio and Speech Playback to prototypes. I would like to see this feature added to Figma. I design a lot of Now Playing music and podcast screens, and would like the prototype to be able to play the audio content.

Dear figma, in times of AI and plug-ins like Automator, can we PLEASE get the option to use audio files in Figma and prototypes? The current workflow is ridiculously painful and time-consuming, and if you design for audio on a daily basis, also extremely restricting.

OK, so if you sit completely still, these are really next-level audio quality. They have a phantom-centre like high-end studio monitors, and an extremely balanced sound-stage. They make you realise you've probably never heard good in-ear phones before.

...but if you move, the sound transference/vibration through the cable is also next-level (to the point of distraction) because the cables are rubber (or similar) so grip on everything - face, shoulders, front of jacket etc. As a commuter, this is really problematic. Even nodding your head to the sound that is being so beautifully delivered, creates unwanted noise.

I've been looking for earbuds like this ever since they were invented.Flare has always made great audio drivers, but the new system of delivery to your eardrums is a big game changer. Fidelity and imaging are the best I've ever heard.

I have XD mic settings on, restarted XD, switched mics from the normal mic to a different headset, and successfully tried the mic on different apps. I cannot seem to record my prototype and narrate at the same time. When I record and press "enable microphone," no sound records. I am on an up-to-date Mac.

If it doesn't help, could you please confirm if you are able to record audio while recording your screen generally? It doesn't need to be any particular app, please try recording your home screen of your Mac and test if you are able to record the audio?

Sorry to hear about the trouble. Could you please confirm the version of Adobe XD and the Operating System. And could you please confirm this if you are able to record your screen with audio in general, not specifically working on XD?

I am having this same problem, I just uninstalled Soundflower but could not find detailed instructions on how it was resolved further. Can Adobe please put out detailed instructions on their sound/recording configurations? It seems to be a common problem for us.

I can record, and use voice commands on this mac, the ONLY thing not recording my audio is Adobe XD.

I'm running MacBigSur v11.2.1 with Adobe XD 37.0.32.10. While in Preview and turn "Record" it will not record any speech playback or audio recording at all. I'm able to record screen, audio or video using Quicktime without any issues. I see a lot of post about this but there is no solution.

So I can sympathize with what you all are going through. Can't wait to get a solution to this problem.

I know this isn't much help but that quite a few of us are in this same boat together.

For headphones, I own a Sennheiser HD-25. Frankly it's a superb piece, the audio is wonderful. However, I wanted for ages now to have a reliable and non-bulky way to make these headphone wireless with compromising quality too much.

I could obviously just a cheap UHF tx/rx pair but not only I would expose my audio to anyone but there would be no way to have the second feature that I wanted: a stereo back channel (or at least mono) for a microphone or line in.

After countless hours of search, let me introduce the CC85XX series, these chips from Texas Instruments are capable of juggling between 4 channels, and they work at 2.4GHz (granted the range might be reduced a bit but at least not anyone will be able to decode the audio). These chips are beasts:

I was sold, so I started to recreate the convenient application circuit of the datasheet on easyeda:Few tweaks that I did is replacing the antenna matching circuit with the 2450BM15A0002E which is a prebuild circuit for the CC chips.

After spending way too much time trying to understand how the PurePath wireless configurator worked I finally found the audio codec chip that is compatible with my needs, and so I settled for the TLV320AIC3204IRHBR this chip is equally a beast, but I had one issue:

I could not figure out how to programmatic switch between the line in and the microphone input of the chip which was somewhat problematic. Sure I could reprogram the chip each time I want to switch but that didn't seem very viable, so now I had to mess with one of the thing I dread the most: analog signals.

After quite a bit of experimentation with the chips I had (tl07x, tl08x, lm386, lm358, ne5532) I made a circuit with the tl071 which somewhat worked, however I had to max out my sound card input amp to have something useable (mind you the quality was fantastic). So clueless as I am with analog signals I went for a search on the internet and found the OPA2348 sure they were way better options, but they were also a lot more expensive (I'm looking at you MAX4466).

Conveniently the OPA2348 data sheet provides an application schematic for and electret microphone preamp circuit, so I continued the schematic by recreating the circuit, however something caught my eyes: the application schematic states a band pass of 300Hz to 3kHz which is good but not quite good enough especially in the high frequency side

So after waiting a week for the PCB to arrive I for the first time soldered the component with solder paste. The USB-C connector was definitively the hardest to solder correctly, even now I'm not sure.

Obviously the first power up didn't work at all. Like VCC an GND shorted together. After many hours of scratching my head looking at the PCB and the schematic I could find the flaw. Turns out I might have meddled with the PCB after the order because you can see the VCC trace going straight into the ground planeAnd well after cutting that and re-soldering the trace correctly it worked just fine.

Now the only issue is that I don't have a cc-debuger, so I ordered one but the mail service here SUCKS, so I wasn't able to do anything with the PCB for around 1.5 weeks. After I received it tho I was able to use the Ti PurePath Wireless configurator to program the chip which,

So a few weeks back I got my cc-debugger program both boards both lighted up but didn't pair. And after searching for a config option that I would have missed I kinda gave up for 2-3 days, but then I remembered that I got a hackrf that can see where the signal is and while programming both boards as masters the signal wasn't in the same place.

The first board is working fine, it was a few hundred kHz of, so I adjusted the C1,C2 caps to 24pF instead of 16pf, and it's now only 3kHz off the test frequency.Second board is another story, on any channel it's almost always 15Mhz away from the desired test frequency. Moreover, it drifts on startup and drifts with temperature (like a lot).I tried swapping the crystal because you never know you never know and re-soldering the chip and in both case it did not change a thing. I'm more and more thinking that my CC8531 is dead on this board.

So make it easier to debug I soldered a TLV320AIC3204 to a QFN breakout board, painfully soldered jumper wires to the PCB pads and to the breakout board. I then started probing with my oscilloscope and sure enough there was no data on the I2S data lines, the clocks were working fine thoI even started a new thread on ti e2e forum because I could not figure it out

As it turns out the guy who help me couldn't find an issue with my schematic and directed me toward a config issue. After discovering that there was preconfigured examples of project files and after doing a bit of tweaking to said files, I managed to get a 2 channel stereo link. Yay.There were issues tho the most annoying one being that I couldn't go further than 1 meter and other issues like the TLV320AIC3204 that only worked on the breakout board.

After much tinkering with the config file I was able to add a third channel for a microphone, and it worked. Not well, the audio cut a lot (tho I manged to keep it stable for 5min) but it showed that it was possible.

I suspect that a lot of my issues are related to my poor PCB design and component choices for the rf parts that's why I'm currently recreating a schematic for a new prototype, and I'll hopefully don't make any big mistakes. I'll do another blog post about it whenever I get finished everything

When I was visiting Audio Note (UK) last fall, Daniel Qvortrup showed me drivers and cabinets of some prototype field-coil loudspeakers they were in the process of developing, as we did a walk-about of the facility.

Let me repeat part of my discussion of field-coil drivers from my "Sneak Peek: The Audio Note (UK) Oto Phono SE Signature Integrated Amplifier Feature Review for Positive Feedback! Part 1." post HERE." (I'll be updating that post with Daniel's photos as well.)

"Field-coil electromagnet drivers have a number of advantages over permanent magnet drivers due to their powerful magnet strength. The field-coil electromagnet driver follows the soundtrack or music signal much more accurately, meaning you get greatly reduced distortion from the driver, resulting in much higher fidelity to the music or soundtrack signal."

"As a result, with the field-coil electromagnet driver the listener hears more of the artistry of the musicians or film effects, and the listener experiences a greater sense of emotional engagement because of it."

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