arthurdb

Yes it's ridiculously low. IMO, the biggest selling point for those chips is the 0.65mm pitch ;) However things do add up, especially if you consider the rather reasonnable use-case of plugging a digital instrument with a couple of digital...

As a side note, I've found two other chips with a very low latency setting, in a hand-soldering friendly package (tssop-16 with 0.65mm pitch): AK4432: 2ch DAC - 1/5.6fs (sharp roll-off) or 1/5.2fs (slow roll-off). THD+N at -91dB, 108dB DR...

Except when you want high level outputs :)

I've just been playing with the multi-channel USB code, since I know the stock audio library does not work with the reduced audio block size needed for low latency. As it stands right now it's not working with super-small blocks, but it appears...

Well I was planning on +/-12 or 15V for the analog front end and separate 3.3v supplies, LDO-regulated from a unique 5v (which would also power the teensy). But if I need a well regulated and clean 5v supply for the converters... then I need a 7...

Yes it is totally achievable from processing standpoint. I have implemented a synth that runs 24 band-limited oscillators, 16 ZDF 24db/Oct ladder filters, 24 LFOs, 32 envelope generators, 3 way ensamble chorus, phaser, delay, reverb, 3 band...

The stock audio library, using the PJRC Audio Adapter, has an in to out latency of about 6.4ms. I know this from measuring it myself. Obviously you’d need to reduce the audio block size to get to your desired latency, as you say, but 32 samples...

Thanks for your input and tips. That's encouraging to hear. Yes, I realize recording to SD is a finicky business, glad to know there's a solid library out there. I'll be sure to check it out. The low latency setting for the PCM51xx chips is...

Hello everyone, I want to build a 4 in 6 out i2s digital audio mixer for live use. I have a strong background in analog electronics and some experience with bare metal mcu as well as with the arduino platform. Since this is for live music, I...