Hello,
I received the Beocreate today and I am truly impressed!
My first question regarding the device:
Is there a way to have a regular pre-out via the GPIO pins or else?
I am trying to visualise the Signal that is send to the raspberry.
I could use the second speaker out but this has too much output for my use.
Possible at all ?
Thank you!
Date
Votes
8 comments
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HiFiBerry team No, there is no pre-out via GPIO. How exactly are you trying to visualise the signal?
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Berry White Well I have a beautiful old VU Meter that I would like to include in the DAC Amp housing.
It cannot deal with the Speaker out signal / voltage.
I was thinking if there is a way to route the signal directly to to one of the speaker outs via the dsp but I guess that this is not possible because of the hardwiring of the amp-components?
Thanks -
HiFiBerry team Something like this would do the job to convert from speaker level top line level:
https://www.fullcompass.com/prod/260221-xantech-sllc1-speaker-level-to-line-level-converter
https://electronics.stackexchange.com/questions/344651/attenuate-75w-speaker-to-line-in
Note that you will need a solution with an output transformer as none of the outputs on the amplifiers are connected directly to ground while most inputs are. -
Berry White I was thinking that maybe I could split the input on the software side and send it to a small usb dac 3.5 adpater that I have lying around.
That should be possible with the ALSA mixer, no? -
HiFiBerry team Definitely not a simple thing to do. This would require stuff like Pulseaudio or similar.
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Berry White I was hoping that Alsa has this ability?
example: http://www.6by9.net/output-to-multiple-audio-devices-with-alsa/ -
HiFiBerry team Feel free to try. In general, we're not fans of dmix as the simple sample rate conversion isn't great from an audio quality point of view.
BTW: I would not recommend to try this with HiFiBerryOS as this would probably break a lot of things! -
Berry White I guessed so ... however having a headphone option in the DAC would be a nice thing as well
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