Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,HTML_50_60, HTML_MESSAGE autolearn=unavailable version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id s8BJlmRn024879 for ; Thu, 11 Sep 2014 21:47:48 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1XSAGz-0007z8-1Z for rs_out_1@blacksheep.org; Thu, 11 Sep 2014 20:43:17 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1XSAGx-0007yz-Nk for rsgb_lf_group@blacksheep.org; Thu, 11 Sep 2014 20:43:15 +0100 Received: from omr-d04.mx.aol.com ([205.188.109.201]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.82) (envelope-from ) id 1XSAGu-0008EY-QK for rsgb_lf_group@blacksheep.org; Thu, 11 Sep 2014 20:43:14 +0100 Received: from mtaout-mbb01.mx.aol.com (mtaout-mbb01.mx.aol.com [172.26.254.109]) by omr-d04.mx.aol.com (Outbound Mail Relay) with ESMTP id 187BC70047BEC for ; Thu, 11 Sep 2014 15:43:10 -0400 (EDT) Received: from White (unknown [95.90.196.102]) by mtaout-mbb01.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 4A3FF38000098 for ; Thu, 11 Sep 2014 15:43:07 -0400 (EDT) Message-ID: <873BC5A1589F4B79B2142360B52A648F@White> From: "Markus Vester" To: References: <4B47B680CCBD46B69C3FB841C5A3081F@AGB> <53FE3567.8020208@gmail.com> <009701cfc23e$b4bdc410$1e394c30$@simnet.is> <53FE51E1.3060303@gmail.com> <53FF23E8.10907@gmail.com> <5400127E.3000808@abelian.org> <540049C6.9050006@gmail.com> <143F048B24A040058ED88A15AE211979@MichaelSappPC>, <5402465F.1050101@gmail.com> , <5410AC37.6050506@gmail.com> Date: Thu, 11 Sep 2014 21:43:16 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MIMEOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20140625; t=1410464590; bh=9oJ7C7lgvugUsE5jfRzCjYSTwgsPlxG9VjFEGwtDA2c=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=OP21vGgY7AuCREYE6yC65dW1XeAai/pb799Qm0LdlmzsGNG1/U+AJMqaYnFSrVaG6 w471eW8jfvJG2UkFynsjCBLuYEJ1DSEBQ0xJMoqCHoWN3cC2XyzNZf9tDR9RePgHW8 W4g67upjiTIa4kZ15mX8DjIDj1wH07SB4uqb+hVo= x-aol-sid: 3039ac1afe6d5411fb4b4e53 X-AOL-IP: 95.90.196.102 X-Scan-Signature: f9bb43a66658129469273581af35b296 Subject: Re: LF: OT, Remote site, garden progress Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01CFCE09.656FFFA0" X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 419 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_0003_01CFCE09.656FFFA0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Laura, interesting. How often do those overruns occur? Wonder if you could = upload a few megabytes of that 192k wav recording for us to look at. Best 73, Markus (DF6NM) (only Windoze machines here, must be a rich dumb guy ;-) From: LZ=20 Sent: Thursday, September 11, 2014 7:16 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: OT, Remote site, garden progress Hi, Got the Wolfson card running. Very first impressions: Since I don't want to compile a new kernel (>12h on the R-Pi) I used that image: http://blog.georgmill.de/wp-content/uploads/2014/04/kernelAndFirmware_wol= fson_rt.tar.bz2 On a Linuxbox I unzipped it and wrote the image to a 4Gb=20 card using an ordinary cheap card reader: dd if=3D2014-01-07-wheezy-raspbianW.img of=3D/dev/sdd "of" is the device of the card reader got by "fdisk -l" (Don't ask me about doing this on a WinBox. Poor girl here.) Plugged into a R-Pi with the "Wolfson" in place this image=20 booted without any errors. It will run "raspi-config"=20 first where you have to do some boring config tasks=20 (lang. etc.). OT here. Next I plugged in an antenna/preamp into the red plug and started this modified bash script as root (!): #!/bin/bash # Record from onboard Line Input to AP # input PGA gain amixer -Dhw:0 cset name=3D'IN3L Volume' 4 # (mod by Laura) amixer -Dhw:0 cset name=3D'IN3R Volume' 4 # (mod by Laura) # better THD in normal mode vs lower noise floor in high performance amixer -Dhw:0 cset name=3D'IN3 High Performance Switch' on amixer -Dhw:0 cset name=3D'IN3L Digital Volume' 128 amixer -Dhw:0 cset name=3D'IN3R Digital Volume' 128 amixer -Dhw:0 cset name=3D'LHPF1 Input 1' IN3L amixer -Dhw:0 cset name=3D'LHPF2 Input 1' IN3R amixer -Dhw:0 cset name=3D'LHPF1 Mode' High-pass amixer -Dhw:0 cset name=3D'LHPF2 Mode' High-pass amixer -Dhw:0 cset name=3D'AIF1TX1 Input 1' LHPF1 amixer -Dhw:0 cset name=3D'AIF1TX1 Input 1 Volume' 32 amixer -Dhw:0 cset name=3D'AIF1TX2 Input 1' LHPF2 amixer -Dhw:0 cset name=3D'AIF1TX2 Input 1 Volume' 32 # The following command should be used to test (mod by Laura) arecord -Dhw:0 -r 192000 -c 2 -f S16_LE test.wav Looking into "test.wav" with "Baudline" all the usual suspects=20 from 10-96 kc are present. The "Wolfson" appears quiet and flat. At ~53 and ~63kc I'm observing some signals from the 2nd=20 Nyquist domain. The experts will know which. Boring: running "arecord" I got many overruns. Overclocking (900 Mhz) did not cure this. Guess it's due to a slow SD card. Next step: streaming. Hope that "flac" will work. ? Laura Sent from my HapPyPhone ------=_NextPart_000_0003_01CFCE09.656FFFA0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Laura,
 
interesting. How often do those = overruns=20 occur? Wonder if you could upload a = few=20 megabytes of that 192k wav recording for us to look at.
 
Best 73,
Markus (DF6NM)
 
(only Windoze machines here, must = be a rich=20 dumb guy ;-)
 

From: LZ
Sent: Thursday, September 11, 2014 7:16 PM
Subject: Re: LF: OT, Remote site, garden = progress

Hi,

Got the=20 Wolfson card running. Very first impressions:

Since I don't want = to=20 compile a new kernel
(>12h on the R-Pi) I used that image:
http://blog.georgmill.de/wp-content/uploads/2014= /04/kernelAndFirmware_wolfson_rt.tar.bz2

On=20 a Linuxbox I unzipped it and wrote the image to a 4Gb
card using an = ordinary=20 cheap card reader:
dd if=3D2014-01-07-wheezy-raspbianW.img = of=3D/dev/sdd
"of"=20 is the device of the card reader got by "fdisk -l"
(Don't ask me = about doing=20 this on a WinBox. Poor girl here.)

Plugged into a R-Pi with the = "Wolfson"=20 in place this image
booted without any errors. It will run = "raspi-config"=20
first where you have to do some boring config tasks
(lang. = etc.). OT=20 here.

Next I plugged in an antenna/preamp into the red = plug
and=20 started this modified bash script as root = (!):

#!/bin/bash

#=20 Record from onboard Line Input to AP

# input PGA gain
amixer = -Dhw:0=20 cset name=3D'IN3L Volume' 4 # (mod by Laura)
amixer -Dhw:0 cset = name=3D'IN3R=20 Volume' 4 # (mod by Laura)

# better THD in normal mode vs lower = noise=20 floor in high performance
amixer -Dhw:0 cset name=3D'IN3 High = Performance=20 Switch' on

amixer -Dhw:0 cset name=3D'IN3L Digital Volume' = 128
amixer=20 -Dhw:0 cset name=3D'IN3R Digital Volume' 128

amixer -Dhw:0 cset = name=3D'LHPF1=20 Input 1' IN3L
amixer -Dhw:0 cset name=3D'LHPF2 Input 1' = IN3R
amixer -Dhw:0=20 cset name=3D'LHPF1 Mode' High-pass
amixer -Dhw:0 cset name=3D'LHPF2 = Mode'=20 High-pass

amixer -Dhw:0 cset name=3D'AIF1TX1 Input 1' = LHPF1
amixer=20 -Dhw:0 cset name=3D'AIF1TX1 Input 1 Volume' 32
amixer -Dhw:0 cset = name=3D'AIF1TX2=20 Input 1' LHPF2
amixer -Dhw:0 cset name=3D'AIF1TX2 Input 1 Volume' = 32

#=20 The following command should be used to test (mod by Laura)
arecord = -Dhw:0 -r=20 192000 -c 2 -f S16_LE test.wav

Looking into "test.wav" with = "Baudline"=20 all the usual suspects
from 10-96 kc are present. The "Wolfson" = appears=20 quiet and flat.
At ~53 and ~63kc I'm observing some signals from the = 2nd=20
Nyquist domain. The experts will know which.

Boring: running=20 "arecord" I got many overruns. Overclocking
(900 Mhz) did not cure = this.=20 Guess it's due to a slow SD card.
Next step: streaming. Hope that = "flac" will=20 work. ?

Laura

Sent from my = HapPyPhone

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