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Re: LF: OT, Remote site, garden progress

To: [email protected]
Subject: Re: LF: OT, Remote site, garden progress
From: LZ <[email protected]>
Date: Sat, 13 Sep 2014 18:16:04 +0200
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In-reply-to: <trinity-1ce63e72-a969-4c63-b67a-88cf3a20b3dd-1410531339488@3capp-gmx-bs66>
References: <4B47B680CCBD46B69C3FB841C5A3081F@AGB> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <143F048B24A040058ED88A15AE211979@MichaelSappPC>, <[email protected]> <trinity-1e9e02bd-7788-4919-af05-35f3b6f90b22-1409856610207@3capp-gmx-bs39>, <[email protected]> <trinity-09c9db3c-1191-4e81-a314-0185cf637077-1410455778510@3capp-gmx-bs65>, <873BC5A1589F4B79B2142360B52A648F@White>, <trinity-1ce63e72-a969-4c63-b67a-88cf3a20b3dd-1410531339488@3capp-gmx-bs66>
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Hi,

News from Wolfson audio on the R-Pi:

Using an ultra fast SD-card silently "borrowed" from 
Daddy those overruns from Wolfson audio were still 
present but less often and way shorter.

OK, next writing into the unix toilet:
arecord -Dhw:0 -r 192000 -c 2 -f S16_LE /dev/null

Fine, no glitches after hours of recording!

Next trial was piping the output via ssh to
my desktop computer:
arecord -Dhw:0 -r 192000 -c 2 -f S16_LE - | ssh [email protected] 'cat > 
from_rpi.wav'

A growing file named "from_rpi.wav" appeared
in my home directory on the desktop computer.
"arecord" consumes only 1% of cpu load and
the piping secure shell process 19%. Stopped
this when the file size had reached 1 Gb.

NO overruns were noticeable after the connection had been 
established. So piping aka "streaming" should work.

BTW after a loud "bang" and some smell from amperes
I'm running the R-Pi (B-type) from a current limiting power
supply now. 5.2 Volts and only 400-500 mA all inclusive.

Laura

PS: "dd-ing" Daddy's very private videos back now...

Sent from my LoranPhone


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