diff --git a/device/alsa/alsa.go b/device/alsa/alsa.go
index 0ebfa931..9c10e021 100644
--- a/device/alsa/alsa.go
+++ b/device/alsa/alsa.go
@@ -142,6 +142,9 @@ func (d *ALSA) Setup(c config.Config) error {
 		errs = append(errs, errInvalidCodec)
 		c.InputCodec = defaultCodec
 	}
+	if errs != nil {
+		return errs
+	}
 	d.Config = Config{
 		SampleRate: c.SampleRate,
 		Channels:   c.Channels,
@@ -153,16 +156,14 @@ func (d *ALSA) Setup(c config.Config) error {
 	// Open the requested audio device.
 	err := d.open()
 	if err != nil {
-		d.l.Log(logger.Error, pkg+"failed to open device")
-		return err
+		return fmt.Errorf("failed to open device: %w", err)
 	}
 
 	// Setup the device to record with desired period.
 	ab := d.dev.NewBufferDuration(time.Duration(d.RecPeriod * float64(time.Second)))
 	sf, err := pcm.SFFromString(ab.Format.SampleFormat.String())
 	if err != nil {
-		d.l.Log(logger.Error, pkg+err.Error())
-		return err
+		return fmt.Errorf("unable to get sample format from string: %w", err)
 	}
 	cf := pcm.BufferFormat{
 		SFormat:  sf,
@@ -229,20 +230,20 @@ func (d *ALSA) Stop() error {
 func (d *ALSA) open() error {
 	// Close any existing device.
 	if d.dev != nil {
-		d.l.Log(logger.Debug, pkg+"closing device", "title", d.title)
+		d.l.Log(logger.Debug, "closing device", "title", d.title)
 		d.dev.Close()
 		d.dev = nil
 	}
 
 	// Open sound card and open recording device.
-	d.l.Log(logger.Debug, pkg+"opening sound card")
+	d.l.Log(logger.Debug, "opening sound card")
 	cards, err := yalsa.OpenCards()
 	if err != nil {
 		return OpenError(err)
 	}
 	defer yalsa.CloseCards(cards)
 
-	d.l.Log(logger.Debug, pkg+"finding audio device")
+	d.l.Log(logger.Debug, "finding audio device")
 	for _, card := range cards {
 		devices, err := card.Devices()
 		if err != nil {
@@ -262,19 +263,22 @@ func (d *ALSA) open() error {
 		return OpenError(errors.New("no ALSA device found"))
 	}
 
-	d.l.Log(logger.Debug, pkg+"opening ALSA device", "title", d.dev.Title)
+	d.l.Log(logger.Debug, "opening ALSA device", "title", d.dev.Title)
 	err = d.dev.Open()
 	if err != nil {
 		return OpenError(err)
 	}
 
-	// 2 channels is what most devices need to record in. If mono is requested,
-	// the recording will be converted in formatBuffer().
-	channels, err := d.dev.NegotiateChannels(2)
-	if err != nil {
-		return OpenError(err)
+	// Try to configure device with chosen channels.
+	channels, err := d.dev.NegotiateChannels(int(d.Channels))
+	if err != nil && d.Channels == 1 {
+		d.l.Log(logger.Info, "device is unable to record in mono, trying stereo", "error", err)
+		channels, err = d.dev.NegotiateChannels(2)
 	}
-	d.l.Log(logger.Debug, pkg+"alsa device channels set", "channels", channels)
+	if err != nil {
+		return OpenError(fmt.Errorf("device is unable to record with requested number of channels: %w", err))
+	}
+	d.l.Log(logger.Debug, "alsa device channels set", "channels", channels)
 
 	// Try to negotiate a rate to record in that is divisible by the wanted rate
 	// so that it can be easily downsampled to the wanted rate.
@@ -294,7 +298,7 @@ func (d *ALSA) open() error {
 			rate, err = d.dev.NegotiateRate(r)
 			if err == nil {
 				foundRate = true
-				d.l.Log(logger.Debug, pkg+"alsa device sample rate set", "rate", rate)
+				d.l.Log(logger.Debug, "alsa device sample rate set", "rate", rate)
 				break
 			}
 		}
@@ -302,12 +306,12 @@ func (d *ALSA) open() error {
 
 	// If no easily divisible rate is found, then use the default rate.
 	if !foundRate {
-		d.l.Log(logger.Warning, pkg+"Unable to sample at requested rate, default used.", "rateRequested", d.SampleRate)
+		d.l.Log(logger.Warning, "unable to sample at requested rate, default used.", "rateRequested", d.SampleRate)
 		rate, err = d.dev.NegotiateRate(defaultSampleRate)
 		if err != nil {
 			return OpenError(err)
 		}
-		d.l.Log(logger.Debug, pkg+"alsa device sample rate set", "rate", rate)
+		d.l.Log(logger.Debug, "alsa device sample rate set", "rate", rate)
 	}
 
 	var aFmt yalsa.FormatType
@@ -332,7 +336,7 @@ func (d *ALSA) open() error {
 	default:
 		return OpenError(fmt.Errorf("unsupported sample bits %v", d.BitDepth))
 	}
-	d.l.Log(logger.Debug, pkg+"alsa device bit depth set", "bitdepth", bitdepth)
+	d.l.Log(logger.Debug, "alsa device bit depth set", "bitdepth", bitdepth)
 
 	// A 50ms period is a sensible value for low-ish latency. (this could be made configurable if needed)
 	// Some devices only accept even period sizes while others want powers of 2.
@@ -347,13 +351,13 @@ func (d *ALSA) open() error {
 	if err != nil {
 		return OpenError(err)
 	}
-	d.l.Log(logger.Debug, pkg+"alsa device buffer size set", "buffersize", bufSize)
+	d.l.Log(logger.Debug, "alsa device buffer size set", "buffersize", bufSize)
 
 	if err = d.dev.Prepare(); err != nil {
 		return OpenError(err)
 	}
 
-	d.l.Log(logger.Debug, pkg+"successfully negotiated device params")
+	d.l.Log(logger.Debug, "successfully negotiated device params")
 	return nil
 }
 
@@ -371,7 +375,7 @@ func (d *ALSA) input() {
 			continue
 		case stopped:
 			if d.dev != nil {
-				d.l.Log(logger.Debug, pkg+"closing ALSA device", "title", d.title)
+				d.l.Log(logger.Debug, "closing ALSA device", "title", d.title)
 				d.dev.Close()
 				d.dev = nil
 			}
@@ -379,31 +383,31 @@ func (d *ALSA) input() {
 		}
 
 		// Read from audio device.
-		d.l.Log(logger.Debug, pkg+"recording audio for period", "seconds", d.RecPeriod)
+		d.l.Log(logger.Debug, "recording audio for period", "seconds", d.RecPeriod)
 		err := d.dev.Read(d.pb.Data)
 		if err != nil {
-			d.l.Log(logger.Debug, pkg+"read failed", "error", err.Error())
+			d.l.Log(logger.Debug, "read failed", "error", err.Error())
 			err = d.open() // re-open
 			if err != nil {
-				d.l.Log(logger.Fatal, pkg+"reopening device failed", "error", err.Error())
+				d.l.Log(logger.Fatal, "reopening device failed", "error", err.Error())
 				return
 			}
 			continue
 		}
 
 		// Process audio.
-		d.l.Log(logger.Debug, pkg+"processing audio")
+		d.l.Log(logger.Debug, "processing audio")
 		toWrite := d.formatBuffer()
 
 		// Write audio to ringbuffer.
 		n, err := d.rb.Write(toWrite.Data)
 		switch err {
 		case nil:
-			d.l.Log(logger.Debug, pkg+"wrote audio to ringbuffer", "length", n)
+			d.l.Log(logger.Debug, "wrote audio to ringbuffer", "length", n)
 		case ring.ErrDropped:
-			d.l.Log(logger.Warning, pkg+"old audio data overwritten")
+			d.l.Log(logger.Warning, "old audio data overwritten")
 		default:
-			d.l.Log(logger.Error, pkg+"unexpected ringbuffer error", "error", err.Error())
+			d.l.Log(logger.Error, "unexpected ringbuffer error", "error", err.Error())
 			return
 		}
 	}
@@ -436,7 +440,7 @@ func (d *ALSA) formatBuffer() pcm.Buffer {
 		if d.pb.Format.Channels == 2 && d.Channels == 1 {
 			formatted, err = pcm.StereoToMono(d.pb)
 			if err != nil {
-				d.l.Log(logger.Fatal, pkg+"channel conversion failed", "error", err.Error())
+				d.l.Log(logger.Fatal, "channel conversion failed", "error", err.Error())
 			}
 		}
 	}
@@ -445,7 +449,7 @@ func (d *ALSA) formatBuffer() pcm.Buffer {
 		// Convert rate.
 		formatted, err = pcm.Resample(formatted, d.SampleRate)
 		if err != nil {
-			d.l.Log(logger.Fatal, pkg+"rate conversion failed", "error", err.Error())
+			d.l.Log(logger.Fatal, "rate conversion failed", "error", err.Error())
 		}
 	}
 
@@ -456,11 +460,11 @@ func (d *ALSA) formatBuffer() pcm.Buffer {
 		enc := adpcm.NewEncoder(b)
 		_, err = enc.Write(formatted.Data)
 		if err != nil {
-			d.l.Log(logger.Fatal, pkg+"unable to encode", "error", err.Error())
+			d.l.Log(logger.Fatal, "unable to encode", "error", err.Error())
 		}
 		formatted.Data = b.Bytes()
 	default:
-		d.l.Log(logger.Error, pkg+"unhandled audio codec")
+		d.l.Log(logger.Error, "unhandled audio codec")
 	}
 
 	return formatted
diff --git a/device/alsa/alsa_test.go b/device/alsa/alsa_test.go
index 918a022a..8124e131 100644
--- a/device/alsa/alsa_test.go
+++ b/device/alsa/alsa_test.go
@@ -27,6 +27,7 @@ package alsa
 
 import (
 	"bytes"
+	"errors"
 	"io/ioutil"
 	"os"
 	"strconv"
@@ -35,6 +36,7 @@ import (
 
 	"bitbucket.org/ausocean/av/codec/codecutil"
 	"bitbucket.org/ausocean/av/codec/pcm"
+	"bitbucket.org/ausocean/av/device"
 	"bitbucket.org/ausocean/av/revid/config"
 	"bitbucket.org/ausocean/utils/logger"
 )
@@ -54,14 +56,14 @@ func TestDevice(t *testing.T) {
 	l := logger.New(logger.Debug, os.Stderr, true)
 	ai := New(l)
 	err := ai.Setup(c)
-	// If there was an error opening the device, skip this test.
-	if _, ok := err.(OpenError); ok {
+	// Log any config errors, otherwise if there was an error opening a device, skip
+	// this test since not all testing environments will have recording devices.
+	var e *device.MultiError
+	if err != nil && errors.As(err, &e) {
+		t.Logf("errors from configuring device: %s", err.Error())
+	} else if err != nil {
 		t.Skip(err)
 	}
-	// For any other error, report it.
-	if err != nil {
-		t.Error(err)
-	}
 	err = ai.Start()
 	if err != nil {
 		t.Error(err)
diff --git a/go.sum b/go.sum
index 31c41a01..2b59f69e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,7 @@
+bitbucket.org/ausocean/iot v1.2.13 h1:E9LcW3HYqRgJqxNhPJUCfVRvoV2IAU4B7JSDNxB/x2k=
+bitbucket.org/ausocean/iot v1.2.13/go.mod h1:Q5FwaOKnCty3dVeVtki6DLwYa5vhNpOaeu1lwLyPCg8=
+bitbucket.org/ausocean/iot v1.2.14 h1:+2up1G1g28RnXFw+1tpobdpZxzZDYEXgsXwmpNZDCWA=
+bitbucket.org/ausocean/iot v1.2.14/go.mod h1:Q5FwaOKnCty3dVeVtki6DLwYa5vhNpOaeu1lwLyPCg8=
 bitbucket.org/ausocean/iot v1.2.16 h1:dZvENB2cLmeHvEfBULhGxnM9K10IuWFLqjcFKBJHpgw=
 bitbucket.org/ausocean/iot v1.2.16/go.mod h1:rRcWt6SoM/jgIZpP1zrpnKb5BhxIMulAJ+q1xTvLh94=
 bitbucket.org/ausocean/utils v1.2.11 h1:zA0FOaPjN960ryp8PKCkV5y50uWBYrIxCVnXjwbvPqg=
@@ -22,6 +26,7 @@ github.com/go-audio/audio v0.0.0-20181013203223-7b2a6ca21480 h1:4sGU+UABMMsRJyD+
 github.com/go-audio/audio v0.0.0-20181013203223-7b2a6ca21480/go.mod h1:6uAu0+H2lHkwdGsAY+j2wHPNPpPoeg5AaEFh9FlA+Zs=
 github.com/go-audio/wav v0.0.0-20181013172942-de841e69b884 h1:2TaXIaVA4ff/MHHezOj83tCypALTFAcXOImcFWNa3jw=
 github.com/go-audio/wav v0.0.0-20181013172942-de841e69b884/go.mod h1:UiqzUyfX0zs3pJ/DPyvS5v8sN6s5bXPUDDIVA5v8dks=
+github.com/go-delve/delve v1.5.0/go.mod h1:c6b3a1Gry6x8a4LGCe/CWzrocrfaHvkUxCj3k4bvSUQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/google/go-cmp v0.4.1 h1:/exdXoGamhu5ONeUJH0deniYLWYvQwW66yvlfiiKTu0=
diff --git a/revid/audio_linux.go b/revid/audio_linux.go
index d3d08a58..caac84e1 100644
--- a/revid/audio_linux.go
+++ b/revid/audio_linux.go
@@ -25,11 +25,13 @@ LICENSE
 package revid
 
 import (
+	"errors"
 	"fmt"
 	"strconv"
 
 	"bitbucket.org/ausocean/av/codec/codecutil"
 	"bitbucket.org/ausocean/av/container/mts"
+	"bitbucket.org/ausocean/av/device"
 	"bitbucket.org/ausocean/av/device/alsa"
 	"bitbucket.org/ausocean/utils/logger"
 )
@@ -42,8 +44,11 @@ func (r *Revid) setupAudio() error {
 	// Configure ALSA device.
 	r.cfg.Logger.Log(logger.Debug, "configuring input device")
 	err := d.Setup(r.cfg)
-	if err != nil {
+	var e *device.MultiError
+	if err != nil && errors.As(err, &e) {
 		r.cfg.Logger.Log(logger.Warning, "errors from configuring input device", "errors", err)
+	} else if err != nil {
+		return err
 	}
 	r.cfg.Logger.Log(logger.Info, "input device configured")