# QA401 and 2nd party SW

**URL:** <https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120>\
**Category:** QA401\
**Created:** [June 17, 2020, 3:38pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120 "2020-06-17T15:38:36Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![dimitri](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@dimitri](https://forum.quantasylum.com/u/dimitri)\
**Post date:** [June 17, 2020, 3:38pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/1 "2020-06-17T15:38:36Z")

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I’m trying other SW with this box, e.g. Arta, Virtins SW, etc. According to ASIO401 I run QAAnalyzer and exit it. But once I exit relay returns back to -20dB. Can I make 0dB a default value?

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**Author:** ![1audio](https://avatars.discourse-cdn.com/v4/letter/1/b2d939/32.png) [@1audio](https://forum.quantasylum.com/u/1audio)\
**Post date:** [June 17, 2020, 5:31pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/2 "2020-06-17T17:31:41Z")

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You need to make a change in the configuration file for the ASIO driver. its documented at the [https://github.com/dechamps/ASIO401](https://github.com/dechamps/ASIO401) Its simple but you need to restart it when you change the file.

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**Author:** ![dimitri](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@dimitri](https://forum.quantasylum.com/u/dimitri)\
**Post date:** [June 18, 2020, 3:04pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/3 "2020-06-18T15:04:59Z")

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Thank you Demian,  
I wasn’t specific: yes I made ASIO401.toml file:

# ASIO401 configuration file

attenuator = false  
bufferSizeSamples = 1024  
forceRead=false  
and then I enable ASIO401.log file:  
2020-06-18T10:59:45.7367505-04:00 3728 10596 Logfile opened: “C:\Users\galin\ASIO401.log”  
2020-06-18T10:59:45.7369417-04:00 3728 10596 Log time source: GetSystemTimePreciseAsFileTime  
2020-06-18T10:59:45.7369782-04:00 3728 10596 Host process: C:\VIRTINS Multi-Instrument 3.9\MIs.exe  
2020-06-18T10:59:45.7370100-04:00 3728 10596 ASIO401 RelWithDebInfo x86 asio401-1.1 built on 2019-02-03T14:45:38Z  
2020-06-18T10:59:45.7370360-04:00 3728 10596 — ENTERING CONTEXT: CASIO401()  
2020-06-18T10:59:45.7370606-04:00 3728 10596 — EXITING CONTEXT: CASIO401() [OK]  
2020-06-18T10:59:45.7370962-04:00 3728 10596 — ENTERING CONTEXT: init()  
2020-06-18T10:59:45.7371313-04:00 3728 10596 Attempting to load configuration file: “C:\Users\galin\ASIO401.toml”  
2020-06-18T10:59:45.7372475-04:00 3728 10596 **Configuration file successfully parsed as valid TOML:**  
2020-06-18T10:59:45.7372927-04:00 3728 10596 Getting device info set for {FDA49C5C-7006-4EE9-88B2-A0F806508150}  
2020-06-18T10:59:45.7378992-04:00 3728 10596 Enumerating device interfaces  
2020-06-18T10:59:45.7379390-04:00 3728 10596 Getting device interface detail buffer size  
2020-06-18T10:59:45.7379740-04:00 3728 10596 Getting device interface detail with buffer size 83  
2020-06-18T10:59:45.7380044-04:00 3728 10596 Device path: \?\usb#vid\_16c0&pid\_4e27#5&a4e3133&0&2#{fda49c5c-7006-4ee9-88b2-a0f806508150}  
2020-06-18T10:59:45.7386355-04:00 3728 10596 Opening file handle for USB device at path: \?\usb#vid\_16c0&pid\_4e27#5&a4e3133&0&2#{fda49c5c-7006-4ee9-88b2-a0f806508150}  
2020-06-18T10:59:45.7386951-04:00 3728 10596 Initializing WinUSB

But -20dB is still there…

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**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\
**Post date:** [June 18, 2020, 5:38pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/4 "2020-06-18T17:38:32Z")

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> [@dimitri](#):
>
> But -20dB is still there…

Do you hear the relay click or see the atten LED change state depending on your settings?

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**Author:** ![dimitri](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@dimitri](https://forum.quantasylum.com/u/dimitri)\
**Post date:** [June 18, 2020, 6:07pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/5 "2020-06-18T18:07:51Z")

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No matter what I put in the configuration file, “Atten” LED is on and no clicks.  
It can be switched on/off only from your app

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**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\
**Post date:** [June 18, 2020, 8:11pm UTC](https://forum.quantasylum.com/t/qa401-and-2nd-party-sw/120/6 "2020-06-18T20:11:19Z")

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Etienne is active on Github. You could probably leave an issue at the link below and he’d understand the problem right away.

> **[dechamps/ASIO401](https://github.com/dechamps/ASIO401/issues)**
>
> An unofficial ASIO driver for the QuantAsylum QA401 audio analyzer. - dechamps/ASIO401