dear Dave
I have raspberry pi 3
I have set -b 128 -B2048. now is better. I have to try if there is no message yet

Dear Victor,

I tried setting sr to 22050 but it did not change.
a lot happens in my instrument and I have to do less

Thanks

Ehsan

On Sunday, April 8, 2018, 9:27:30 PM GMT+2, Dave Seidel <dave.seidel@GMAIL.COM> wrote:

Yes, good advice.

On Sun, Apr 8, 2018 at 3:21 PM, Victor Lazzarini <Victor.Lazzarini@mu.ie> wrote:

Also checked that your CPU is not maxed out. No buffer settings will fix that; you will need to try and run a simpler code or at a lower SR.

The top command can give your cpu usage.

Victor Lazzarini

Dean of Arts, Celtic Studies, and Philosophy

Maynooth University

Ireland

On 8 Apr 2018, at 20:08, Dave Seidel <dave.seidel@GMAIL.COM> wrote:

Hi Ehsan,

I have been working a lot with a Raspberry Pi 3 doing realtime Csound. My current buffer settings are "-b 128 -B 2048". I don't know if this is optimal, but it is working pretty well with a couple of apps; one uses MIDI input and the other uses OSC input. I'm not currently using audio input, so this could be a difference. Also I don't know which Raspberry Pi model you are using, so my settings may or may not be useful for you. There are many variables, including how your orchestra code is written and how the system itself is tuned (or not) for performance. The best advice I can offer is to experiment with different settings, and also look for opportunities to make your Csound code more efficient.

- Dave

On Sun, Apr 8, 2018 at 2:37 PM, Ehsan Ebrahimi <000002d2fca3b9e3-dmarc- request@listserv.heanet.ie> wrote:

dear all
i have csound on raspberry pi (raspbian)

I always get message

Warning: buffer overrun in real-time audio input
Warning: Buffer underrun in real-time audio input

in
<CsOptions>

-odac: hw1,0     -adc: hw: 1    -b512   -B1024

<CsOptions>


sr = 44100
ksmps = 128
nchnls = 2

Many Thanks
Ehsan

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