You know, let me see if I can get one, I can do an episode of "how does hair affect a measurement", I could also do glasses!

Thanks! Yep, cassette, reel to reel or (UGH) 8 track! There's a minimum size of a magnetic domain in the material on the tape, and that sets the minimum saturation level. So your range is fixed by physics.

Anything beyond sidewalk chalk is overspending.

@@periodicaudio but it’s titanium!

They wish! Just a normal BH curve, for us edumakated book learned types.

@@periodicaudio Like BH Photo???

@@WalterW They're German, Walter. So it's the common abbreviation for "Büstenhalter" - otherwise known as a bra. Culture, Walter, culture!

@@periodicaudio oh right! How could I have forgotten

Pascal was OK. Now Java, that language simply sucks!

@@periodicaudio okay no argument there!

@@WalterW But one thing I don't get: the love for Python and the hatred for Visual Basic. VB is so much easier, and when added to Excel you have a MASSIVELY powerful engine!

@@periodicaudio BASIC is generally looked at as a “beginner” language. Python is more advanced

@@WalterW Both are beginner languages compared to assembly or even C! :) I go for ease of use and ability to do what I want. VB in Excel, at least for me, gives me massive power for data processing and graphing.

HECK YES! TRS and TS connectors are super reliable and rugged, and with a proper jack they are super small.

Thank you! Glad you enjoy them! We will definitely film how we build the drivers themselves, the next time we do a batch. Because of the complexity of setup, we do BIG BATCHES at a time, typically a 12-16 month supply, over the course of a few days. So... Gonna be a while! :)

You know, when you get old, and then like... well, there was the time back in the day when we tied onions to our belt, but Burt Lancaster was doing lots of movies, because talkies were still new... And... Where was I going? Who are you and what have you done with my horse!

@@periodicaudio Lmaoooooo

Yep! Very few headphones/IEMs are USB C natively; if they are, they have a USB C plug on the end. Most headphones have a 3.5mm TRS (or TRRS) plug on the end, and would need an adapter like our Rhodium DAC - something that adapts USB C digital audio and creates analog for your headphones to use.

@@periodicaudio so that's it... okay I understand now, thank you very much

@@aldopataraka2874 You're welcome! If you have any questions about any audio stuff, just ask and we'll do our best to answer it!

Thanks! Dan LOVES talking about audio, especially the more technical side of things. If there are ANY questions/topics about audio or acoustics you'd like to hear him talk about, just drop a note here or write to [email protected]!

Our contract with the Lollipop guild expired 7 months ago, but we are close to closing a 3 year deal with the Keebler Elves

@@periodicaudio It must be nice to be able to afford Keebler money

@@WalterWYou should see what those Rice Krispies gnomes charge!

@@periodicaudio would it make my brain snap, crackle, pop?

@@WalterWNo, that's the bad skunk weed.

That is the benefit of multiple post-graduate degrees!

@@periodicaudio no wonder mine aren’t as good!

Same question ! I am confused between 7hz Zero 3.5 vs type c . Which one to buy and is there any difference in sound quality ?

Well, I'm still a fan of a separate DAC. IF you like the IEMs that have the USB C, go for it! However, DACs tend to be MUCH more subtle in sound quality differences than IEMs, so personally I would want to keep the DAC and IEMs/headphones separate. That way I can choose the IEM that I prefer the sound of. I can also use multiple headphones for different places. Like I might want over-ears at a desk/office, but IEMs when traveling. Same DAC does both, but different headphones. In the end, IMHO it's about a slight amount of convenience (built-in DAC - take one of our IEMs and heatshrink it to a Rhodium and you have the same thing) versus a pretty big gain in flexibility and application with multiple headphones/IEMs.

@@ETXD-fb5rn Answer below! Would you only ever want to use just one amp/DAC with a specific set of IEMs? No? Then get separates - DAC and IEM/headphone separate.

@@periodicaudio thanks for clearing .

Send over some headphones from another company and you'll probably see a chamber of horrors!

@@periodicaudio I have some gnarled Audio Technica headphones and your mailing address

Not quite. It may lose some amplitude (lower volume) depending upon angle from you. But the frequency will not shift. And note - that tone will be heard by EACH ear, so the change in amplitude (and the time difference between it arriving at each year) will be different, and your brain will use that difference in amplitude and time to determine where the sound is...:) Play a pure sine wave through a single speaker, close your eyes, and move around - you'll be able to point fairly accurately to where the speaker is! Our perception engine is freaking AMAZING!

Thank you very much for the detailed information. One last question: When I have my head in a position, where a sine wave of a specific frequency has a lower amplitude and I change the frequency, would the new frequency be differently influenced than the old one? I try to find out if the HRTF effect is bigger on one single sine wave than on sound that consists of avariety of sine waves. @@periodicaudio

@@philipreichel9303 Yes and no. The HTRF changes with frequency, so yes the "sound" will appear most likely to have a different amplitude. BUT - your brain already knows the HRTFs (it's lived with them its whole life), so it "corrects" to make them sound right and uses them to find a different position. So, think of an HRTF as an equalizer function that you can use to determine where a sound is around you. And you know the way the equalizer work, so you'll still know what instrument/source is making that sound at a variable location. Does that make sense?

@@periodicaudio Yes, thank you so much for your help!

So this also the reason why sub bass frequencies are much harder to pinpoint the source location? they are much less affected by the HRTF?

They're entering production now; this was an Indiegogo launch, meaning before production. Expect to see reviews of the DAC in April and May!

@@periodicaudio oh, cool.

You're welcome!

Anyone is welcome to come on by and we'll measure your gear for you!

@@periodicaudio but my gear is your gear!

@@WalterW Well bring something else and we can compare and contrast (and maybe laugh) at the results!

@@periodicaudio Apple earbuds 😂

Exactly! Just take the stuff available already on Google maps and show it in a small monochrome, 800x600 display in the corner. Or just have it whisper in your ear. And leave ALL the heavy-lifting processing on your phone - the AR display is just an extension of the phone. 800x600 x 8 bit monochrome @ 10 FPS can be done with UWB. That is plenty of resolution AND update rate for "your turn is here". If you have a 10 Mbps wireless connect to your phone - that's plenty.

Sadly the age of 30 second videos has negatively impacted tech. If you can't make a huge splash with "oh wow!" kind of stuff in the first minute, no one wants it. Make it mundane, but indispensable and you win.

Thanks! They really rock... We need to get better affiliate links out there!

Thank you sir! Hope all is well with you!

Silicon is a wired audio device. So in wireless (Bluetooth mode) it would not work with your XM5. However, if you wanted to go line-in on the headphones then Silicon would be a high res input to your headphones (your XM5 has an analog line input jack).

Crushes it. Why do we say that? Here's a comparison of our Rhodium DAC versus the AudioQuest Dragonfly Black: periodicaudio.com/how-does-rhodium-stack-up-against-a-high-end-dac/ Silicon is leaps and bounds above Rhodium. Full 32/768 kHz input, DSD256 support, and 5X the output power. Silicon is also the ONLY portable DAC that we know of that is completely DC coupled from the D/A converter through the amplifier, meaning response down to 0 Hz (yes, DC) and with exceptionally low output impedance meaning very tight and extended bass response. Plus, Silicon is smaller than Rhodium, and much much smaller and lighter (and easier to use - USB C natively) than the Dragonfly.

Sounds promising! What's the price?

​@@periodicaudio And compared to the new FiiO K13?

@@stefanhansen5882 MSRP is $199; it's on an Indiegogo campaign right now (igg.me/at/periodic) with a few left at $129, and plenty at $149.

@@stefanhansen5882 we're 25% of the size, 20% of the weight, same SE power output, and probably pull 40% of the current from the phone (based upon chipsets listed). We also handle twice the PCM input.

Ham handed boy! How the heck do you break a mic? Shure 58s must tremble before you! :)

@@periodicaudio bro, have you seen my meat hooks?!

Thank you! And if you have any questions about anything audio or electronics related - feel free to pass them along and we'll get them covered!

Maybe in dog years...

You're welcome! If there are any audio/audio-tech questions you have, we'd love to answer them for you!

With USB C and power charging, there won't be an issue with a competent DAC (Like our Rhodium). Resistances on the CC1/CC2 lines are used to indicate any ability to charge from the attached device; Rhodium's resistances present tell any host that we do NOT charge. So we just pull some current from the phone for operation. If your phone is getting warm while using Rhodium, I'd check to make sure you're using native hardware decoding of high res (which Rhodium supports), not software emulation.

Thank you! It's small enough - for now. We're working on the next iteration of Wonkavision (in 4K) so we can shrink them down even more!

@@periodicaudio as long as you don’t send me to the taffy puller

😂👍 Yes. And we still mourn the loss. We'll be launching some exciting DAC/Amps in the near future. Is there anything in the audio realm you'd like us to make a video about?

We may or may not have something dropping early in the new year ;-) Email - info@ our domain and we'll put you down for first production run!

@@periodicaudio done . :)

@@periodicaudiowhat was it or is it??????

Compression doesn't really result or affect THD. It's a dynamic thing, where you turn the volume up 3 notches, but the output only goes up 2 notches. It's like a reduction in the dynamics of the sound (loud to soft), not addition of new non-existent content.

Great question! We should do an AMA on dB and such... For this question, though, every "order of magnitude" is 20 dB. So 100% THD would be 0 dB; 10% would be 20 dB lower (-20 dB). 1% would be 40 dB down, 0.1% would be 60 dB down, and 0.01% would be 80 dB down. So you can think of it as every time you move 20 dB, the decimal point moves. THD listed as "80 dB down" or "SINAD 80 dB" would mean THD (or in the case of SINAD, Signal to Noise And Distortion) would be 0.01% of the entire signal. Essentially zero!

Glad you enjoyed it! Any other requests?