Roadtrip to CAS 5 in San Francisco
Not even a month has gone by since I packed up and flew out to the nation’s capitol for Gary Gill’s Capitol Audio Fest. Now it’s time to load up the car with equipment, a collection of Ultra HD-Audio discs, Charlie (the new Border Collie), and my wife and head to the bay area for Constantine Soo’s California Audio Show. This is the fifth time that he has presented his Northern California show. The event starts on Friday of this week and takes place at the Westin SFO in Millbrae, CA, which is just south of the airport.
Like the DC show, the CAS is much smaller than AXPONA and the RMAF but it draws attendees from all over the city by the bay AND you can manage to visit every room in a single day. It’s an easy decision for my wife and I because we’re only 5 hours away (although she tells me it’s another 2 hours because of the frequent puppy stops required) and our daughter lives in the city. I like the show because the people that show up span a wider demographic than most of the shows I attend and they seem to already know about high-resolution audio. My pitch is therefore more to the point.
I find it encouraging that men and women of all ages take time out of their weekend to listen to expensive audio systems, attend seminars, check out headphones, and stop by the marketplace to discover new music…in 5.1 surround and high-resolution. Last year, I was fortunate to have my sales tables located just across from the registration tables, making our visibility very high. The only downside was the constant music playing from the SONOS system just a few yards away…playing the same tracks over and over again (how many times can you listen to “Kiss From A Rose by Seal?). Music playback is supposed to be limited to demo rooms…I’ll keep my fingers crossed.
Constantine asked me to present a couple of seminars during the course of the three-day event. I’m always happy to oblige and plan on giving my “2014: Is This The Year of High-Resolution Audio” and “Definitions, Downloads, Devices and A New Direction” presentations on Saturday and Sunday (please check the schedule on the website for the latest updates).
CAS5 is following the lead of many of the other audio trade shows and including a dedicated room to headphones, headphone amplifiers and high-end portable devices. I heard from my friends at Oppo that they are planning to attend CAS5 and will be bringing their headphones and the amazing HA-1 headphone DAC and preamplifier. Oppo doesn’t routinely participate in trade shows…this is a rare opportunity to meet with them.
For those interested in vinyl LPs, the website is claiming that the largest collection of vinyl records ever assembled in a hotel setting will be part of the show. I expect there will be lots of turntables and audiophile accessories on display in the 30 plus rooms that have signed up for the show. Looking at the list of “CAS5 Prize Giveaways”, I’m sure you’re going to want to enter to win the 1.5 meter Thales Line Cable precision interconnects worth $2200 or an $150 Carbon CD Damper…so get a ticket asap.
I located a box of 100 copies of our old Intel-era High-Resolution Audio Experience Sampler and plan to give those away free to the first 100 attendees that stop by the booth. So if you’re anywhere near San Francisco this coming weekend, please stop by and say hello, get a free sampler, and pick up some of our award-winning discs.
Hi Dr. Aix,
I enjoy reading your daily emails. They are very educational, as I am a novice audiophile.
I have a question about something that confuses me: We speak about sampling rates in digital recording. I understand about the 44.1k, 96K, 192K, etc. and about word length.
My question is regarding streaming digital sources, such as Beats, Spotify, etc. How does “bandwidth” affect playback quality, and why? I imagine that even a 192K, 24bit sample streamed over a lower bandwidth channel would sound poor, but why, since the original digital content is 192K/24bit. In other words, how does bandwidth on streaming audio affect the fidelity of the source?
Also, is there any way for a consumer such as myself to know with any reliability that the streaming source I am paying for is, in fact, using 320kps bandwidth, rather than a lesser bandwidth. Beats claims 320kps bandwidth, but can this be objectively verified? In general, are some music streaming services of higher bandwidth than others?
Hope you enjoy the SF show. No hurry on the answer.
Thanks.
Mitch Miglis
Here’s the quick story. The specifications of encoding analog signal into digital ones using PCM have the parameters you mentioned…both sample rate and word length. When streaming audio, we talk about the bandwidth required to transmit a digital file from one place to another. If we wanted lossless PCM audio at Redbook specs, our pipe would have to be capable of 1411 kbps….without any dropouts. Streams that are limited to 128, 256 or even 320 kbps use perceptual masking and other data reduction techniques to reduce the 1411 kbps of the CD into the small pipe of 320 kbps. This changes the fidelity of the audio. The highs are reduced since they take up a larger part of the bandwidth than low frequencies.
It’s always best to start with a high quality source file…but the final streaming codec will define our much quality is actually transmitted.
I think I might be able to attend CAS this Saturday…. Hmmm, ticket prices are reasonable..
I believe this is like 5th time on attending on audio meetings/shows, which always have been rather disappointing. I hopefully this time might be a bit different.
Mark, you are cordially invited come on up to the Wine Country and visit me at Lavish Hi-Fi in Healdsburg. We’ll have a great time, guaranteed.
Thanks for the invitation…it would be lots of fun but time is tight, we have the puppy and plans with friends in the Palo Alto area.