Search found 95 matches

by AnalogJoe
Fri Jan 05, 2024 7:24 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

Is there a specific reason why they are doing a raw capture? Declicking works better. People declick in the RAW domain then apply RIAA in DSP. RIAA EQ makes the "hole" punched in the audio by the click longer and interpolation to repair it is spread out over a longer period of time. Makes...
by AnalogJoe
Fri Jan 05, 2024 12:13 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

Regarding vinyl capture. I still can get in my mind around why would anyone need an a/d with such a low noise, the SNR of a vinyl record is what, like 60 dB? this thing has 129 dB of SNR. What is the logic behind it? In my situation I'd use it just because I had it. Most of my clients who are using...
by AnalogJoe
Fri Jan 05, 2024 10:05 am
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

I haven't found a good work-around in AudioTester for ASIO devices that are not full duplex. The TI PCM4222 EVM shows up as the Emu0404 when its SPDIF output is internally routed to the 0404's output. I can use the 0404's D/A and the 4222 A/D simultaneously using the 0404's console. The D/A locks t...
by AnalogJoe
Thu Jan 04, 2024 5:53 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

The iFi doesn't offer full galvanic isolation. It's expensive because it has a high mark-up. The added series R in the ground, which sometimes has back-to-back diode clamps in some people's builds, is usually enough to quieten them. Here's a link to E1DA's store: https://www.aliexpress.com/store/11...
by AnalogJoe
Thu Jan 04, 2024 1:44 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

For me the Cosmac's fixed input gain and lower input noise would allow it to replace the PCM4222 EVM I use for critical measurements. The 2i2 Gen 3 however is my daily driver for test and measurement. I also have a second one on a desktop PC. Both have an iFi USB ground isolator with external power...
by AnalogJoe
Thu Jan 04, 2024 1:17 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

For me the Cosmac's fixed input gain and lower input noise would allow it to replace the PCM4222 EVM I use for critical measurements. The 2i2 Gen 3 however is my daily driver for test and measurement. I also have a second one on a desktop PC. Both have an iFi USB ground isolator with external power...
by AnalogJoe
Thu Jan 04, 2024 1:03 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

Sounds like a great improvement. Amazon has it on stock and it is at a relatively low price. To be honest, I think I would rather go with the Scarlett than the COSMAC. Focusrite is a very good company and their products are very robust. Not too long ago I needed a 4 in/out interface for a project. I...
by AnalogJoe
Wed Jan 03, 2024 5:03 pm
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

Seems like a good cart, the very significant increase in THD is interesting. Also, the performance of that Scarlett is stellar. Which generation are you using? THD? I am sorry, I just realized it is 60 Hz hum and its harmonics, I just saw more harmonics and my mind went into THD mode. The second se...
by AnalogJoe
Wed Jan 03, 2024 11:21 am
Forum: Pro Audio Design
Topic: A "Dummy" Cart For Phono Preamp Noise Testing
Replies: 33
Views: 22119

Re: A "Dummy" Cart For Phono Preamp Noise Testing

Seems like a good cart, the very significant increase in THD is interesting.

Also, the performance of that Scarlett is stellar. Which generation are you using?
by AnalogJoe
Mon Jan 01, 2024 1:07 pm
Forum: The Peabody Lounge
Topic: Too many bots?
Replies: 5
Views: 4373

Re: Too many bots?

mediatechnology wrote: Mon Jan 01, 2024 5:05 am When posts are made about Covid in particular there's a bot swarm. We're popular with the deep state.
Amazing! Is this still happening or mostly back in the pandemic days?