I thought I was the smartest engineer of my age until I read this: http://www.hackaday.com/2007/03/16/b...-spectrograph/ What more can I say? About one year younger and at least as smart. More than just amazing...

I have a guitar connected to the aux in on my Live 24 bit though a simple opamp based preamp. A digital amplifier is connected to the S/PDIF output. Capture works great but how can I pass though the guitar signal to S/PDIF so I can have an easier time optimizing the preamp circuit? The system...

What circuit do you recommend to connect a Squier Telecaster Custom 6 string guitar to a line level input on a PC? I've heard that guitars tend to have poor SNR (so frequency response is much more important than SNR for the preamp) although the Telecaster has shielded pickups and therefore has...

Has anyone tried to use active cooling devices (such as Peltiers and compressors) with audio hardware? As temperature is reduced, Johnson-Nyquist noise decreases significantly. For a small device like a DAC or headphone amp, the cheapest option is a Peltier. You can buy one for just $20 at...

Has anyone figured out the complete pinout of the digital I/O port? I can get output by connecting a simple cable, but how do I get the S/PDIF input to work? I need to connect an AIW's S/PDIF output to the sound card to get audio for TV. (The AIW card does demux using onboard circuitry and I...

I'm planning to build a CMOY based on the AD843 opamp. I'm planning to use two DC/DC converters to generate a split supply (planning +-12v). I need to know the current so I can size the DC/DC converter circuits.

http://www.mariposahd.tv I hope other shows follow their great ideas by providing links to high quality video right on their web site! It's simply the way HDTV should be.

I got the PCM2902 USB audio chip working (the USB interface at least), but I have some questions. For the S/PDIF input (coax), should the receive amp invert the signal or not? Would it be possibe to use one connector for both digital and analog input, with the chip autoselecting the type? (I'm...

When I run Survivor on my Athlon 64 PC, the video card makes an electrical buzzing sound similar to a mercury arc lamp, though not as loud. I noticed it when I opened the case to check the temperatures. The card is passively cooled so that rules out a noisy fan. Specs: 3000+ Athlon 64 1GB...

I use foobar2000 to play my music, and I'm having a problem with the skip silence function. It would cut in when I can still hear sound from the speaker. I tried setting the threshold very low and it still happens. Is there a way to make it activate at lower levels?

I currently have a MFX 450 amp/DAC unit connected to some bundled "desktop" speakers. The sound quality is OK and the speakers don't take up much space, but now that I rearranged my room and have more space, I'm considering an upgrade. There are some polkaudio floor speakers for sale at Fry's...

Can a mod make a poll with the following options: (Only one choice per voter.) *own both and like both equally well *own both but like AMD better *own both but like Intel better *owns an AMD and prefers AMD *owns an Intel and prefers Intel *owns an AMD but wants to switch to Intel *owns...

Is there a driver that allows me to use my sound card to decode audio from an AIW 9000? The analog output is very bad quality and I want surround sound. The system runs Windows Server 2003, BTW. I use a Sound Blaster Live 24 bit, with the S/PDIF output to a 5.1 digital amp. Now, S/PDIF input...

Has anyone thought about that? Semiconductors exhibit lower noise levels at low temperatures. (Which has been proven by numerous overclockers.) Sure, it's expensive and requires special tools and skills, but aren't many people here already willing to spend a lot to gain a little...