100 Things #50: Soundcheck Supports Multiple Interfaces for Ultimate Flexibility

SoundCheck is built on flexibility, and it’s hardware compatibility is no exception. SoundCheck supports multiple audio interfaces and devices, all simultaneously. Freely combine and measure with analog and digital interfaces together. Use a Listen interface like AmpConnect 621, and pair it with an A2B, I2S, or Bluetooth interface for highly customizable tests.

Audio Interface Options in SoundCheck

Learn more about SoundCheck’s Interface & Device Options

Listen’s Audio Interfaces.

Why did we design our own hardware: A look into why our in-house designed and manufactured audio interfaces offer advantages over off-the-shelf products.

Audio over IP with Dante interfaces.

Testing Automotive Audio Via A2B Interfaces.

Testing MEMS Devices with a MEMS Interface.

Using Bluetooth Interfaces with SoundCheck.


Video Script: Soundcheck Supports Multiple Interfaces for Ultimate Flexibility

Since 1995, SoundCheck has supported the use of external sound cards and audio interfaces. But did you know that SoundCheck can support multiple audio interfaces and other audio devices simultaneously giving you ultimate flexibility for a wide range of audio test applications?

Here are some examples of test applications that take advantage of this flexibility:

Add additional audio interfaces to expand your channel input and output count, for up to 64 channels of input and output

For example, add Bluetooth, Digital MEMS, I2S, A2B interfaces and even Dante to test these devices

Directly connect a USB audio device like a USB headset, microphone or speaker to test these devices

On Windows OS, SoundCheck supports a wide range of audio drivers including WDM/MME, ASIO, WASAPI, NiDAQ (if using National Instruments hardware) and even Dante. On MacOS, SoundCheck supports CoreAudio. As long as your audio device has an input or output path through a compatible audio driver in SoundCheck, it can be used as an audio source or destination for testing in SoundCheck. Furthermore, SoundCheck can easily support mixed analog and digital signals simultaneously as well as  hardware with different sampling rates.

Let’s look at a hardware setup window in SoundCheck fully exploiting this capability. In my hardware setup you can see a Listen multi channel AmpConnect 621, a BQC-4149 Bluetooth interface, an A2B interface and a USB headset all peacefully coexisting. Note: these devices use different audio drivers, mixed analog and digital signals and even different sampling rates.

With SoundCheck’s auto-delay algorithm, we can even account for latency differences outputting from one hardware device and inputting from another. For example, delays from transmitting a test stimulus to a Bluetooth device like a speaker or headphone.

SoundCheck also has resample and frequency shift post-processing steps to correct for sample rate mismatch and/or hardware clock phase differences as a result of inputting and outputting from different hardware interfaces. This means we can resample and phase align the test stimulus and response prior to analysis to assure accurate measurements.

If you’d like to verify if your device can be used with SoundCheck,  please give us a shout and we’ll check it out!


100 Things #32: Calibrate and Use Third Party Hardware with SoundCheck

SoundCheck supports any third party hardware audio interface and provides the capability to fully calibrate all signal paths. Watch this short video to learn more,

How to Calibrate and Use Third Party Hardware with SoundCheck

More Hardware Resources

Just because you can use any hardware with SoundCheck doesn’t mean that you should! Check our our Hardware Compatibility Table to see which audio interfaces we recommend.


Video Script: Calibrate and Use Third Party Hardware with SoundCheck

We offer many hardware options for use with SoundCheck including audio interfaces, reference microphones, microphone power supplies, and amplifiers. Our own Listen hardware comes pre-calibrated, and the values are stored and directly read from the device. When you purchase Listen-approved third party interfaces from us, such as RME and Lynx, we pre-calibrate them and provide a hardware QC sheet containing the Vp and latency values and complete setup instructions.

While these offer the fastest path to a calibrated test setup, we also understand you may prefer to use other third-party hardware with SoundCheck, especially if you already own a suitable audio interface. So, if you are wondering if you can calibrate and use your existing audio interface with SoundCheck, the good news is that you probably can.

Calibration is recommended before you make any measurement. This involves measuring the peak voltage (Vp) that can be input or output through the audio interface before it saturates so that measurements can be scaled to full digital scale (FSD). Latency is also measured during the calibration process. Even if you’re using hardware that is not listed in our Hardware Compatibility guide, SoundCheck supports, and calibrates, most third party interfaces using WDM, WASAPI, ASIO, Core Audio and NI DAQmx drivers.

Third party audio interface calibration is a one time process which shouldn’t take more than 5 minutes and helps ensure your measurements are accurate. We provide a calibration sequence that can be run from inside the Hardware editor at the click of a button, along with documentation to outline the procedure. The only additional equipment you need is a BNC-T connector and a multimeter.

While we love the tight integration and synergy that comes with using Listen hardware with SoundCheck, we understand that flexibility is also important, given the wide variety of applications and testing needs that we support. With the ability to calibrate and use many third party audio interfaces, including high-channel count audio interfaces, and other hardware, and use multiple interfaces simultaneously, often in different modes, SoundCheck offers true measurement flexibility – with accuracy.