Jump to content
The Computer Audiophile

Audio Precision APx500 Flex Audio Analyzer

Recommended Posts

This is pretty cool. AP enabling use of third party ASIO hardware and it starts at $3,000. 

 

https://www.ap.com/analyzers-accessories/apx500-flex/

 

The APx500 Flex audio analyzer—comprised of APx500 measurement software and an APx500 Flex Key—allows you to select the ASIO-capable audio interface of your choice to use along with AP’s versatile and powerful APx audio measurement software. Start with the measurement options you need now, with the freedom to add additional measurements as your test requirements evolve. The APx500 Flex brings Audio Precision innovations such as one-click measurements, code-free automation and sophisticated reporting to off-the-shelf audio interface hardware solutions.

Across all measurements, the APx500 user interface is fast and intuitive. Just click to select a measurement, then click to add a filter. Drag limits to set pass/fail points right on the results graph. Effortlessly specify computations for derived results. Add defined measurements in a series and run them in an automated procedure called a Sequence. The APx generator can output steady tones, twin tones, sweeps, chirps, multitones, or play WAV files as arbitrary waveforms.

Repetitive bench tests and production testing can easily be automated with the built-in measurement sequencer and saved as a project that can be used with any APx analyzer. Production Test mode provides an optional simplified operator interface with multiple run statistics, created and supervised by a manufacturing engineer. Access the API if you prefer: documentation for VB.NET, C#.NET, MATLAB and LabVIEW is included.

*US MSRP, pricing may vary outside the US. ASIO-capable audio interface not included.


Founder of Audiophile Style

Announcing Polestar | Quick Community Reviews and Ratings

Share this post


Link to post
Share on other sites

It appears that AP officially supports these interfaces, but I'm guessing the Lynx Hilo is also supported because it uses the same USB ASIO interface as the Aurora. The Hilo measures best of the devices, so it seems like the best device to use for measurements. 

 

Do you agree @pkane2001?

 

RME Fireface UC
RME Fireface 802
Lynx Aurora (n)
Lynx E22


Founder of Audiophile Style

Announcing Polestar | Quick Community Reviews and Ratings

Share this post


Link to post
Share on other sites

 

2 hours ago, The Computer Audiophile said:

It appears that AP officially supports these interfaces, but I'm guessing the Lynx Hilo is also supported because it uses the same USB ASIO interface as the Aurora. The Hilo measures best of the devices, so it seems like the best device to use for measurements. 

 

Do you agree @pkane2001?

 

RME Fireface UC
RME Fireface 802
Lynx Aurora (n)
Lynx E22


Lynx Hilo produced one of the best results in  my loopback testing with Deltawave, as I recall. Where did you find measurements for it? I’ll check it out a bit later. 

 

Just know that you will not have as much accuracy or precision or functionality as with a $20k+ full AP analyzer. But it’s good enough for casual testing, similar to what Archimago does. RME ADI-2 PRO FS might be another good choice, if it works with AP software.

Share this post


Link to post
Share on other sites
4 hours ago, The Computer Audiophile said:

It appears that AP officially supports these interfaces, but I'm guessing the Lynx Hilo is also supported because it uses the same USB ASIO interface as the Aurora. The Hilo measures best of the devices, so it seems like the best device to use for measurements. 

 

Do you agree @pkane2001?

 

RME Fireface UC
RME Fireface 802
Lynx Aurora (n)
Lynx E22


Took a quick look at Lynx Hilo measurements, ADC is excellent, not that much off from the built in one in APx555, but the DAC is quite a bit worse. So, measuring output of a device should produce very good results with Hilo, but generating a test analog signal will be the weak point.

Share this post


Link to post
Share on other sites

When using Lynx Hilo as a measurement recorder, use it with a battery power supply and connect the USB to battery powered laptop to get the best result.


Sunday programmer since 1985

Developer of PlayPcmWin

Share this post


Link to post
Share on other sites
On 7/18/2020 at 5:15 AM, yamamoto2002 said:

When using Lynx Hilo as a measurement recorder, use it with a battery power supply and connect the USB to battery powered laptop to get the best result.


That’s true with any audio interface intended for measurements.  This helps avoid ground loops, and certain leakage currents. I usually do measurements from a battery powered laptop, as well as, powering the interface from an independent power supply or a battery.

Share this post


Link to post
Share on other sites

When measuring an audio device with RCA output, I use the RCA to XLR cable of the following wiring.

It is better than the combination of RCA to RCA cable and RCA to XLR adapter.

rcatoxlr.thumb.png.54664e81b41d53cdcb9e4101d325bee9.png

 

Also I have 3.5mm TRS to 2x XLR cable of the same concept to connect 3.5mm TRS output to Lynx Hilo line in.

 


Sunday programmer since 1985

Developer of PlayPcmWin

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...