i’m interested in using a raspberry pi and cirrus logic to build a single channel high fidelity recorder.
i’d like to send one channel of analog audio (also open to a S/PDIF input or a USB input if the digital audio conversion is better served out of the box) into into the cirrus and write a single 70 minute .wav file at 24/96 to a removable storage device.
the whole unit would need to be battery powered with an operational time of at least 3 hours before recharge. files preferably written to a bus-powered USB flash drive.
ideally, there would be two hardwired buttons to serve as record/stop triggers, with an LED showing basic status.
in my research i haven’t found anyone attempting a build this specific (most are wrangling stereo channels at a max of 24/48 for 15 minutes.) for those of you with the knowledge & experience, any way of guessing the possibility of a build like this with these tools?
seems like sample rate is most often limited by buffer capability and storage speed. has anyone successfully tried to record a single file of 24/96 with this combination before? if so, is a 70 minute continuous record ridiculously ambitious given the pi and cirrus capabilities?
are there any other obvious roadblocks that should keep me from investigating further?
very much appreciative of anyone weighing in.
DC
