Clicks in sound when using Aircheck Recorder @ 44.100 Hz

English mAirList 7.x
1

Hi guys,

It’s been a while… I’m still enjoying mAirlist very much! One issue though:

I’m using a D&R Airlite which adds 4 recording devices to Windows. Two of those devices represent the Program and Aux bus of the Airlite. Both devices are added with default settings of 16 bit/44.100 Hz.

I route the Program signal through the Encoder to record to file. This works great.

I route the AUX signal to an Aircheck recorder. These recordings have very noticeable clicking sounds in them.

I’ve switched both sources (AUX @ 44.1 kHz to Encoder/record to file and PGM @ 44.1 kHz to Aircheck recorder) and then both recordings sound fine.

I’ve also changed the AUX input device in Windows to 48.000 Hz and tested this with the Aircheck recoder: Also sounds fine.

To summarize:

PGM @ 44.1 to Encoder: OK
AUX @ 44.1 to Encoder: OK
PGM @ 44.1 to Aircheck: OK
AUX @ 44.1 to Aircheck: NOT OK
AUX @ 48 to Aircheck: OK

It seems like an easy fix to change the AUX input device in Windows to 48 kHz. Unfortunately Windows
regularly re-ads or resets these devices, leading the settings to be back at 44.1 kHz and my recordings not usable.

Hopy you can help!

Thank you for your time,

Maarten

2

Hi Marteen,

is this an external aircheck recorder software like streamWriter aside of mAirlist?

3

Hi Stefan,

Thank you for your reply. I’m using the built-in Aircheck recorder (screen object) in mAirlist.

Greets,

Maarten

1 Like
4

Okay, thank you. Did you try to record the AUX output with an external software to made clear if this only happens in mAirlist?

Which Airlite-Version do you use? I could test it with mine, it’s from 2020…

Aside of that: What ist the reason to use this routing of the AUX instead of the PGM as the Recorder Input in mAirlist?

5

Hi Stefan,

Good question! I’ve tested the AUX bus @ 44.1 kHz with Audacity and indeed it had the same problem (regardless if the Audacity project was 44.1 or 48 kHz). I have no idee why this happens.

Since it’s not really mAirlist related, I’ll contact D&R (it’s an Airlite 1, I think from around 2018).

In the mean time, I found a work around by using this Nirsoft tool to change the sample rate:

SoundVolumeView.exe" /SetDefaultFormat "{0.0.1.00000000}.{2c3d3582-0042-44ac-ab45-84a8c81bb269}" 16 48000 2```