Tag Archive for: dante

100 Things #88: SoundCheck Support Audio Over IP

SoundCheck supports testing audio over IP using Dante. Dante allows a connection between testing computers and devices over long distances, up to 100 meters. Audio over IP also supports large channel counts, which is perfect for multichannel testing across multiple rooms in a facility. SoundCheck flexible hardware compatibility means networked audio devices can be configured just like any other audio interfaces. In an R&D lab, multiple test labs can have data transmitted to a central SoundCheck system.

SoundCheck Support Audio Over IP

Learn more about Listen audio interfaces

Read on for more information and technical specifications of the AmpConnect 621AudioConnect 2. Audio interfaces can be used with a variety of test hardware including Bluetooth interfaces, turntables, accelerometers, and more. Check out all of SoundCheck’s compatibility with audio testing hardware.

Video Script:

SoundCheck is known for its flexibility to work with any soundcard or audio interface, but did you know it also supports Audio over IP using Dante?

Dante by Audinate allows audio to be transmitted over a standard local IP network. This offers simplified connections where your audio interface is located a long way from your SoundCheck computer, for example if it’s in a test lab or anechoic chamber. Connecting via a Dante interface and CAT 5E or 6 ethernet cable allows data to be transmitted up to 100 meters or more using your existing ethernet infrastructure – something that would be impractical and expensive with standard audio cables. It also offers high channel counts, and the network can be expanded with a high-speed network switch. 

The Dante Interface, for example the RME Digiface Dante,  is connected to the SoundCheck computer via USB and it routes the audio to and from any Dante device connected to the network, such as this Lynx Aurora. It also tracks latency over the Dante network. SoundCheck’s hardware editor displays all devices routed through the Dante Controller as Dante Channels in the SoundCheck Hardware Editor, where they can be treated exactly the same as any other input or output channels to enable a full range of audio tests.

Let’s take a look at how this might work for a speaker test. The Dante equipped Aurora interface is our test hardware, providing the output signal to the speaker, the microphone power, and receiving the signal from the microphone. It’s connected to the network via its ethernet connection.  At the other end, the networked Dante interface is connected to the USB port of the SoundCheck computer where it acts as a hub for any Dante-equipped devices – in this case the Aurora. These devices then appear as a single ASIO audio interface with a USB 3 connection to the SoundCheck computer. From this point, you can configure your audio test exactly the same way as usual, and the Dante controller will handle the signal routing and synchronization of all Dante devices, even if they are different.

Multiple Dante Audio Interfaces can be connected to increase channel count. This setup, for example,  allows for 32 balanced line inputs and outputs through the Lynx Aurora(n) with an additional 12 balanced microphone inputs with phantom power through the RME 12Mic-D. 

Audio over IP has many applications in both R&D and production environments. In the R&D lab, it’s a simple and cost effective way of transmitting data from a remote test lab to a central computer, or to enable a fully mobile audio setup that can be moved around the facility. In production applications it enables centralized data collection from many different production lines. Contact your sales engineer to learn more.

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!