Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Mon, 04 Apr 2016 17:18:18 GMT

Hi all, I'm sorry to say I'm a total newbie to all of this. I have a new raspberry pi 2 Model B and I've just purchased the wolfson audio card.

I've attached the card to the board and tried all of the images and software linked in the tutorial above and the software download on the wolfson audio card page, yet I can never see the wolfson audio card in alsmixer or by checking the ./Record_from_lineIn.sh commands.

Can anyone help me? Much appreciated.

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sat, 13 Dec 2014 04:58:57 GMT

Dose anyone know the command line for SPDIF in to Lineout tried various combinations but no luck ??

Also need to know command line for routing SPDIF in SPDIF out ??

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

royleith — Wed, 10 Sep 2014 14:59:13 GMT

Hi All,

I hope I am not diverting folk from real work, but Sonic-Pi installs and runs using the Wolfson ports and Wolfson Wheezy (I have yet to experiment swapping kernels). The only snag is that the prefs volume control does not work and neither does the panel app. That has to be done using the commands.

The audio player control works well and the panel applet also sets the volume of the audio player. I suppose Sonic-Pi does not use the Alsa volume API or is not setting the default output port: It selects between HDMI and Headphone ports.

I started with a lowly class 16GB flash card and the flac demo files were choppy with audio player. The recommended Class 6 minimum proves to be important. I purchased some Kingston Class 10 cards and playback is perfect. I am impressed by the quality. I hope I am not imagining enhanced quality because of the nature of the demo files. The Raspi seems to run much better with the new card, especially Abiword.

And finally, Ragnar Jensen was experimenting with a visual equaliser app using GTK. Did you have any luck? I wondered about using Python and TK-Inter, but this is probably not a good starting point for me to learn Python!

Roy Leith

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sun, 10 Aug 2014 16:00:25 GMT

I am at a loss for a location to ask for help with the Audio Card so I apologise in advance.

I used the snapshot downloaded from element14 site for the audio card. It works fine. My issue is when I apt-get install darkice. It downloaded and I got the following error. :

Preparing to replace darkice 1.0-1 (using .../darkice_1.0-1_armhf.deb) ...

Unpacking replacement darkice ...

Processing triggers for man-db ...

Setting up darkice (1.0-1) ...

insserv: warning: script 'mathkernel' missing LSB tags and overrides

Online there was an article about just removing Wolfram. I don't believe that is an option , or is it ?

Thank you for your help in advance. Tony

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sun, 06 Jul 2014 14:25:33 GMT

Hi!

While I can record using the built in mic, I just get silence if using an external stereo mic.

I've tried plugging both to the headset and to the pink connectors (btw, which one is to be preferred?)

The jack has 2 rings and is connected to 2 mics, left and right. This system works fine if connected to

a zoom h4n recorder, so I'm sure jack and mics perform ok.

Could it be a hardware problem in the (new) wolfson board?

Thanks

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

rjnorthrow — Thu, 19 Jun 2014 10:01:19 GMT

I've brought together the various shell scripts into one that set the output and input for the card and allow you to choose via a menu.

I hope it's useful to someone.

<code>

#!/bin/bash

# Wolfson_Setup.sh

# ----------------

# Select the audio input/output for the Wolfson Audio Card

# Set some standard paths

AMIXER=/usr/bin/amixer

GETOPT=/usr/bin/getopt

ZENITY=/usr/bin/zenity

# Set variables

NULL=/dev/null

CARD="-Dhw:0"

function set_args {

# Set command line arguments

ARGS=$($GETOPT -o qv -l "quiet,verbose" -- "$@");

eval set -- "$ARGS";

while true; do

case "$1" in

-q|--quiet)

shift;

QUIET="-q"

;;

-v|--verbose)

shift;

QUIET=""

;;

--)

shift;

break;

;;

esac

done

}

function amixer_cget {

$AMIXER $CARD cget name="$1"

}

function amixer_cset {

$AMIXER $QUIET $CARD cset name="$1" $2

}

function reset_paths {

# Switch everything off

amixer_cset 'TX Playback Switch' off

amixer_cset 'RX Playback Switch' off

amixer_cset 'AIF Playback Switch' off

amixer_cset 'SPDIF in Switch' off

amixer_cset 'SPDIF out Switch' off

#amixer_cset 'IN1 Digital Switch' off

#amixer_cset 'IN2 Digital Switch' off

#amixer_cset 'IN3 Digital Switch' off

amixer_cset 'IN3 High Performance Switch' off

amixer_cset 'Headset Mic Switch' off

amixer_cset 'DMIC Switch' off

amixer_cset 'Speaker Digital Switch' off

amixer_cset 'AIF1TX1 Input 1' None

amixer_cset 'AIF1TX2 Input 1' None

amixer_cset 'AIF2TX1 Input 1' None

amixer_cset 'AIF2TX2 Input 1' None

amixer_cset 'HPOUT1L Input 1' None

amixer_cset 'HPOUT1R Input 1' None

amixer_cset 'HPOUT1L Input 2' None

amixer_cset 'HPOUT1R Input 2' None

amixer_cset 'HPOUT2L Input 1' None

amixer_cset 'HPOUT2R Input 1' None

amixer_cset 'HPOUT2L Input 2' None

amixer_cset 'HPOUT2R Input 2' None

amixer_cset 'SPKOUTL Input 1' None

amixer_cset 'SPKOUTR Input 1' None

amixer_cset 'SPKOUTL Input 2' None

amixer_cset 'SPKOUTR Input 2' None

}

function get_current {

# Find the first enabled output and input

TO_HEADSET=FALSE

TO_LINEOUT=FALSE

TO_SPEAKERS=FALSE

TO_SPDIF=FALSE

FROM_HEADSET=FALSE

FROM_LINEIN=FALSE

FROM_DMIC=FALSE

FROM_SPDIF=FALSE

if amixer_cget 'HPOUT1 Digital Switch' | grep 'values=on' >$NULL 2>&1

then

TO_HEADSET=TRUE

elif amixer_cget 'HPOUT2 Digital Switch' | grep 'values=on' >$NULL 2>&1

then

TO_LINEOUT=TRUE

elif amixer_cget 'Speaker Digital Switch' | grep 'values=on' >$NULL 2>&1

then

TO_SPEAKERS=TRUE

elif amixer_cget 'SPDIF out Switch' | grep 'values=on' >$NULL 2>&1

then

TO_SPDIF=TRUE

if amixer_cget 'Headset Mic Switch' | grep 'values=on' >$NULL 2>&1

then

FROM_HEADSET=TRUE

elif amixer_cget 'IN3 High Performance Switch' | grep 'values=on' >$NULL 2>&1

then

FROM_LINEIN=TRUE

elif amixer_cget 'DMIC Switch' | grep 'values=on' >$NULL 2>&1

then

FROM_DMIC=TRUE

elif amixer_cget 'SPDIF in Switch' | grep 'values=on' >$NULL 2>&1

then

FROM_SPDIF=TRUE

}

function to_headset {

# Playback from AP to Headset

amixer_cset 'HPOUT1 Digital Switch' on

# Set path gain to -6dB for safety. ie mav 0.5Vrms output level

amixer_cset 'HPOUT1 Digital Volume' 116

# Do we want to clear the HPOUT mixer inputs?

amixer_cset 'HPOUT1L Input 1' None

amixer_cset 'HPOUT1R Input 1' None

amixer_cset 'HPOUT1L Input 2' None

amixer_cset 'HPOUT1R Input 2' None

amixer_cset 'HPOUT1L Input 1' AIF1RX1

amixer_cset 'HPOUT1L Input 1 Volume' 32

amixer_cset 'HPOUT1R Input 1' AIF1RX2

amixer_cset 'HPOUT1R Input 1 Volume' 32

amixer_cset 'Headset Mic Switch' on

}

function to_lineout {

# Playback from AP to Lineout

amixer_cset 'HPOUT2 Digital Switch' on

amixer_cset 'HPOUT2L Input 1' AIF1RX1

amixer_cset 'HPOUT2L Input 1 Volume' 32

amixer_cset 'HPOUT2R Input 1' AIF1RX2

amixer_cset 'HPOUT2R Input 1 Volume' 32

}

function to_speakers {

# Playback from AP to Speakers

amixer_cset 'Speaker Digital Volume' 128

# reset speaker mixer inputs

amixer_cset 'SPKOUTL Input 1' None

amixer_cset 'SPKOUTR Input 1' None

amixer_cset 'SPKOUTL Input 2' None

amixer_cset 'SPKOUTR Input 2' None

# Route AP to Speaker mixer

amixer_cset 'SPKOUTL Input 1' AIF1RX1

amixer_cset 'SPKOUTL Input 1 Volume' 32

amixer_cset 'SPKOUTR Input 1' AIF1RX2

amixer_cset 'SPKOUTR Input 1 Volume' 32

# Unmute speaker output

amixer_cset 'Speaker Digital Switch' on

}

function to_spdif {

# Playback from AP to SPDIF

amixer_cset 'SPDIF out Switch' on

amixer_cset 'TX Playback Switch' on

amixer_cset 'Input Source' AIF

amixer_cset 'AIF Playback Switch' on

amixer_cset 'AIF2TX1 Input 1' AIF1RX1

amixer_cset 'AIF2TX1 Input 1 Volume' 32

amixer_cset 'AIF2TX2 Input 1' AIF1RX2

amixer_cset 'AIF2TX2 Input 1 Volume' 32

}

function from_dmic {

# Record from onboard DMICs to AP

#amixer_cset 'IN2 Digital Switch' on

# May want to tune the gain here.

# Need at least -6dB

amixer_cset 'IN2L Digital Volume' 116

amixer_cset 'IN2R Digital Volume' 116

amixer_cset 'AIF1TX1 Input 1' IN2L

amixer_cset 'AIF1TX1 Input 1 Volume' 32

amixer_cset 'AIF1TX2 Input 1' IN2R

amixer_cset 'AIF1TX2 Input 1 Volume' 32

amixer_cset 'DMIC Switch' on

}

function from_headset {

# Record from Headset to AP

# This is set up as a dual mono record.

# May not be what we want in all scenarios

amixer_cset 'Headset Mic Switch' on

amixer_cset 'IN1R Volume' 20

#amixer_cset 'IN1 Digital Switch' on

amixer_cset 'AIF1TX1 Input 1' IN1R

amixer_cset 'AIF1TX1 Input 1 Volume' 32

amixer_cset 'AIF1TX2 Input 1' IN1R

amixer_cset 'AIF1TX2 Input 1 Volume' 32

}

function from_lineout {

# Record from onboard Line Input to AP

# +9dB input PGA gain

amixer_cset 'IN3L Volume' 8

amixer_cset 'IN3R Volume' 8

# Better THD in normal mode vs lower noise floor in high performance

amixer_cset 'IN3 High Performance Switch' on

#amixer_cset 'IN3 Digital Switch' on

amixer_cset 'IN3L Digital Volume' 128

amixer_cset 'IN3R Digital Volume' 128

amixer_cset 'AIF1TX1 Input 1' IN3L

amixer_cset 'AIF1TX1 Input 1 Volume' 32

amixer_cset 'AIF1TX2 Input 1' IN3R

amixer_cset 'AIF1TX2 Input 1 Volume' 32

}

function from_spdif {

# Record from SPDIF in

amixer_cset 'SPDIF in Switch' on

# Switch off SPDIF TX in case already active

# as WM8804 must run at RX rate if enabled

amixer_cset 'TX Playback Switch' off

amixer_cset 'RX Playback Switch' on

amixer_cset 'AIF Playback Switch' on

amixer_cset 'AIF1TX1 Input 1' AIF2RX1

amixer_cset 'AIF1TX1 Input 1 Volume' 32

amixer_cset 'AIF1TX2 Input 1' AIF2RX2

amixer_cset 'AIF1TX2 Input 1 Volume' 32

}

# MAIN

# Default to being quiet

QUIET="-q"

set_args $@

get_current

reset_paths

OUTPUT=$($ZENITY --list --width=350 --height=250 --radiolist \

--title="Choose Wolfson Audio Output" \

--column "Select" --column="Output" $TO_HEADSET "Headset" $TO_LINEOUT "Line Out" $TO_SPEAKERS "Speakers" $TO_SPDIF "SPDIF" )

if [ "$OUTPUT" = "Headset" ]; then

to_headset

elif [ "$OUTPUT" = "Line Out" ]; then

to_lineout

elif [ "$OUTPUT" = "Speakers" ]; then

to_speakers

elif [ "$OUTPUT" = "SPDIF" ]; then

to_spdif

else

echo "cancel"

OUTPUT=$($ZENITY --list --width=350 --height=250 --radiolist \

--title="Choose Wolfson Recording Input" \

--column "Select" --column="Input" $FROM_HEADSET "Headset" $FROM_LINEIN "Line In" $FROM_DMIC "Onboard Microphones" $FROM_SPDIF "SPDIF" )

if [ "$OUTPUT" = "Headset" ]; then

from_headset

elif [ "$OUTPUT" = "Line In" ]; then

from_lineout

elif [ "$OUTPUT" = "Onboard Microphones" ]; then

from_dmic

elif [ "$OUTPUT" = "SPDIF" ]; then

from_spdif

else

echo "cancel"

</code>

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sat, 05 Apr 2014 02:07:02 GMT

I have a more hypothetical question: Is it techincally possible to play one sound to the line out jack and another sound to the headset jack simultaneously?

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

rohitrangwani — Wed, 26 Mar 2014 16:32:39 GMT

any way to install wolfson related drivers and packages without changing os?

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sat, 15 Mar 2014 18:55:23 GMT

I have found that if I select wolfson_pi_soundcard: AIF:0 as input in Audacity, it will record from whatever I have selected with the "Record_from..." scripts.

There is DC offset when recording from the on-board microphones and the mic on my headset, but that is easily filtered out with a high-pass filter.

I have been successful recording and playing back using every conceivable combination of inputs and outputs.

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RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Sat, 15 Mar 2014 11:16:13 GMT

Thank you Chris for this very useful walk through/review.

RE: Can you hear the Wolf(son) calling? Setting up and using the Wolfson Audio Card

e14 Contributor — Fri, 14 Mar 2014 19:31:18 GMT

Hey Chris,

Nice fyi..