I then tried the W10 'upgrade' on the PC just to see how it was.'Orrible! so I rolled back to W7 which worked to my great relief. In Ubuntu I got this: > import sounddevice as sd sd.I have a Delta 2496 in a (now) W7 computer and it was working fine for years. * 0 M-Audio Delta ASIO, ASIO (12 in, 10 out)Ģ Line 1/2 (Delta 1010LT 1/2), Windows WDM-KS (0 in, 2 out)ģ Line 1/2 (Delta 1010LT 1/2), Windows WDM-KS (2 in, 0 out)Ĥ Line 3/4 (Delta 1010LT 3/4), Windows WDM-KS (0 in, 2 out)ĥ Line 3/4 (Delta 1010LT 3/4), Windows WDM-KS (2 in, 0 out)Ħ Line 5/6 (Delta 1010LT 5/6), Windows WDM-KS (0 in, 2 out)ħ Line 5/6 (Delta 1010LT 5/6), Windows WDM-KS (2 in, 0 out)Ĩ Line 7/8 (Delta 1010LT 7/8), Windows WDM-KS (0 in, 2 out)ĩ Line 7/8 (Delta 1010LT 7/8), Windows WDM-KS (2 in, 0 out)ġ0 Monitor (Delta 1010LT Monitor), Windows WDM-KS (2 in, 0 out)ġ1 Multichannel (Delta 1010LT Multi), Windows WDM-KS (0 in, 10 out)ġ2 Multichannel (Delta 1010LT Multi), Windows WDM-KS (12 in, 0 out)ġ3 S/PDIF 1 (Delta 1010LT SPDIF), Windows WDM-KS (0 in, 2 out)ġ4 S/PDIF 2 (Delta 1010LT SPDIF), Windows WDM-KS (0 in, 2 out)ġ5 S/PDIF (Delta 1010LT SPDIF), Windows WDM-KS (2 in, 0 out) ħ UMC404HD 192k: USB Audio (hw:2,0), ALSA (4 in, 4 out)Īfter testing the interface in a Windows machine, I obtained what I expected: > import sounddevice as sd sd.query_devices() ġ6 IN 1-2 (IN 1-2), Windows WDM-KS (2 in, 0 out)ġ7 IN 3-4 (IN 3-4), Windows WDM-KS (2 in, 0 out)ġ8 OUT 1-2 (OUT 1-2), Windows WDM-KS (0 in, 2 out)ġ9 OUT 3-4 (OUT 3-4), Windows WDM-KS (0 in, 2 out)īut in Ubuntu, using ALSA I got just one entry. It is up to the driver implementation (as stated by and In Windows using ASIO/WDM I got these entries in the list for the UMC404HD. My application objective is to control the start and stop of recording from different audio sources independently based on messages received from another application. I am using Ubuntu as OS and I am recording the audio using sounddevice Python package in a custom application. Is this even determined by the hardware or is this a software feature? What specification determines this feature in an audio interface? But using the same method for recording, the software which listed 4 sources with 2 channels each, just displays 1 input source with 4 channels for the UMC404HD.įor my application, I require to start the recording for each source independently of each other.
expecting 2 input sources (Line 1/2, Line 3/4). This interface was too old and needed a new interface for a new PC, so I got the Behringer UMC404HD, thinking I could do the same with its 4 input channels.
I was using a PCI audio interface M-audio DELTA 1010LT, which had 8 input channels and it allowed me to record 4 independent inputs pairs, this is, the software recognized 4 sources (Line 1/2, Line 3/4, etc).
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