I would like to use my Zoom H2n microphone as USB audio interface, so I can can record it on the Zynthian or sample it on my circuit rhythm.
It seems to connect, but how do I add it as a chain e.g.?
Thanks!
If you are on Oram do the following:
Inside the mixer screen press opt physical button or click on mixer title on the top of the screen to go into main menu of the mixer and select “Add audio chain”. Once added select the chain in mixer and bold press encoder 4 or bold click on chain on the screen to go into audio chain settings and set “audio in” of that chain to audio in of your usb device. If everything is correct when you start using mic you should see chain meter jumping 
For voice it is nice to add some reverb. Add reverb effect, again going into audio chain settings and selecting “add pre-fader audio fx”. Go through categories until you find reverb category by using encoder 3. Select one of reverbs from the list using encoder 4. To further customise reverb setting click on chain inside the mixer and it will open control screen for all added effects.
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Thanks for the great explanation!
Unfortunately the device does not show up there although it appears in lsusb:
lsusb:
Bus 001 Device 004: ID 1686:0045 ZOOM Corporation H4 Digital Recorder
How do I make the device appear in the list?
Thanks!
Hi @spoom! Welcome to the community.
Zynthian currently only supports one concurrent audio interface. You need to configure this in webconf and it must be connected at boot and remain connected throughout.
To find the name of your USB audio device, at the command line type aplay -l. You will see a list of cards. You need to note the text that appears after card : and before the square bracket, e.g. my device has this line:
card 2: sndrpihifiberry [snd_rpi_hifiberry_dacplusadcpro], device 0: HiFiBerry DAC+ADC Pro HiFi multicodec-0 [HiFiBerry DAC+ADC Pro HiFi multicodec-0]
So I would need sndrpihifiberry.
Go to webconf HARDWARE->Audio and change the “Jackd Options” to:
-P 70 -s -S -d alsa -d hw:name_of_your_device -r 48000 -p 256 -n 2 -X raw
replacing name_of_your_device with… the name of your device. You will need to save and reboot.
Did you plug USB device after starting the zynthian? It would be good to reboot it while device is plugged in.
Also, lsusb list all usb devices. You need to list all audio devices to check if alsa Linux driver recognised it as audio input device. Check this by running:
arecord -L
Oh @riban we just crossed each other messages 