audioengr

Responses from audioengr

Apple vs PC for Music System
Toufu - sending data without errors and playing it back real-time with low-jitter are two very different challenges. If it was so easy to eliminate jitter, why would CD's be plagued with this for 20 years?Steve N.Empirical Audio 
PowerBook G4 + Apple Express + iTunes +? to analog
To get a stellar result with AE, you must address two things: first the jitter issue - AE is one of the worst sources for jitter, and then the DAC issue. Forget about using the DAC's in the Computers or these end-point devices. They are not good q... 
Apple vs PC for Music System
M3pilot - Both Mac and PC can be great using USB, particularly with Vista. However, not all USB devices are the same, and not all USB ports on a give computer are the same. The S/W driver and how the USB protocol works is critical. The clock in th... 
Apple vs PC for Music System
Toufu - jitter is jitter, but looking at artifacts at a 60hZ or 120Hz framerate on video is really not as critical as the brain-ear function. If you were to look really close with a magnifying glass at each pixel, you would probably see difference... 
Sending music to DAC wireless vs wired
Ejliu - most DAC's and Transports save money by not using pulse transformers, or they use cheap ones. It's completely different type than transformer used for power. It's a pulse transformer. They cost about $10-20 for a good one.Steve N.Empirical... 
Sending music to DAC wireless vs wired
Ejliu - S/PDIF coax does not necessarily connect the two grounds. Some DAC's and reclockers have isolation transformers.Steve N.Empirical Audio 
SB Duet Sound Quality Improvement?
Scoly1 - the upgraded power supply will make an incremental improvement. Not sure if its worth the effort or money though. There are very few modders that can do the digital output and clock upgrade well. I dont do it myself.Steve N. 
SB Duet Sound Quality Improvement?
The problem is jitter. The way to solve it is to reclock the digital output, or completely redo the digital output stage, upgrade the power supply and replace the clock.Steve N.Empirical Audio 
J River MJ12 Pops/Clicks-Effects help needed?
There are a lot of PC USB deficiencies, both hardware and software that can cause these pops due to high latencies or interrupt conflicts. Usually custom drivers have higher latency. Non-Windows ASIO can cause higher latency. Upsampling or decompr... 
Squeezing out extra perfomance: Reclockers
Portypop - I'll try a second time:I2S is the bus most commonly used to drive modern D/A chips.I2S is comprised of:Master clock or MCLK - 256fsBit clock or SCLK - 64fsWord Clock or sync - fsSerial DataFs, or sample rate frequency is generally 44.1k... 
Stock Benchmark DAC-1 versus EA MSB Gold Link 3
"Modifications to power supply have no sense in my opinion - why would you modify thing that has measured -140dB signal to noise ratio."Because these measurements are steady-state, not transient. The dynamic response of the power subsystem not jus... 
How would you improve the sound of Squeezebox?
Amaggie05 wrote:"How about Bolder Cable's Digital Mod + E.A. Pace-Car?"Modding the SB3 would be a waste of good money if it's feeding a Pace-Car. The jitter coming into the Pace-Car is not really important. The clock is replaced with a local free-... 
Squeezing out extra perfomance: Reclockers
The Isochrones are word clock generators. How does this improve jitter at the D/A? Most modern D/A chips need low jitter on the master and bit clocks, not the word clock. 
Low capacitance interconnect??
Stevecham - the metallurgy has nothing to do with the capacitance. This is set by the wire-to-wire spacing and the insulators. Anything lower than 3.8pF/foot?Steve N.Empirical Audio 
EAC dbpoweramp jumpstart
Just do "test and copy" - uncompressed and you will get great CD copies.When you install EAC, run the wizard and it will optimize for your CDROM drive.If you want all of the tagging info, then I recommend AIFF format.Steve N.Empirical Audio