diff --git a/test/runtests.jl b/test/runtests.jl
index f43efa5..bd77615 100755
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -177,27 +177,7 @@ function test_callback_overflow(inchans, outchans, synced)
     end
 end
 
-# these default values are specific to my machines
 @testset ExtendedTestSet "PortAudio Tests" begin
-    if is_windows()
-        default_indev = "Microphone Array (Realtek High "
-        default_outdev = "Speaker/Headphone (Realtek High"
-    elseif is_apple()
-        default_indev = "Built-in Microph"
-        default_outdev = "Built-in Output"
-    elseif is_linux()
-        default_indev = "default"
-        default_outdev = "default"
-    end
-
-    devs = PortAudio.devices()
-    i = findfirst(d -> d.maxinchans > 0, devs)
-    indev = i > 0 ? devs[i] : nothing
-    i = findfirst(d -> d.maxoutchans > 0, devs)
-    outdev = i > 0 ? devs[i] : nothing
-    i = findfirst(d -> d.maxoutchans > 0 && d.maxinchans > 0, devs)
-    duplexdev = i > 0 ? devs[i] : nothing
-
     @testset "Reports version" begin
         io = IOBuffer()
         PortAudio.versioninfo(io)
@@ -266,70 +246,4 @@ end
             test_callback_overflow(2, 0, true)
         end
     end
-
-    @testset "Open Default Device" begin
-        println("Recording...")
-        stream = PortAudioStream(2, 0)
-        buf = read(stream, 5s)
-        close(stream)
-        @test size(buf) == (round(Int, 5 * samplerate(stream)), nchannels(stream.source))
-        println("Playing back recording...")
-        stream = PortAudioStream(0, 2)
-        write(stream, buf)
-        println("flushing...")
-        flush(stream)
-        close(stream)
-        println("Testing pass-through")
-        stream = PortAudioStream(2, 2)
-        write(stream, stream, 5s)
-        flush(stream)
-        close(stream)
-        println("done")
-    end
-    @testset "Samplerate-converting writing" begin
-        stream = PortAudioStream(0, 2)
-        write(stream, SinSource(eltype(stream), samplerate(stream)*0.8, [220, 330]), 3s)
-        write(stream, SinSource(eltype(stream), samplerate(stream)*1.2, [220, 330]), 3s)
-        flush(stream)
-        close(stream)
-    end
-    @testset "Open Device by name" begin
-        stream = PortAudioStream(default_indev, default_outdev)
-        buf = read(stream, 0.001s)
-        @test size(buf) == (round(Int, 0.001 * samplerate(stream)), nchannels(stream.source))
-        write(stream, buf)
-        io = IOBuffer()
-        show(io, stream)
-        @test String(take!(io)) == """
-        PortAudio.PortAudioStream{Float32}
-          Samplerate: 44100.0Hz
-          Buffer Size: 4096 frames
-          2 channel sink: "$default_outdev"
-          2 channel source: "$default_indev\""""
-        close(stream)
-    end
-    @testset "Error on wrong name" begin
-        @test_throws ErrorException PortAudioStream("foobarbaz")
-    end
-    # no way to check that the right data is actually getting read or written here,
-    # but at least it's not crashing.
-    @testset "Queued Writing" begin
-        stream = PortAudioStream(0, 2)
-        buf = SampleBuf(rand(eltype(stream), 48000, nchannels(stream.sink))*0.1, samplerate(stream))
-        t1 = @async write(stream, buf)
-        t2 = @async write(stream, buf)
-        @test wait(t1) == 48000
-        @test wait(t2) == 48000
-        flush(stream)
-        close(stream)
-    end
-    @testset "Queued Reading" begin
-        stream = PortAudioStream(2, 0)
-        buf = SampleBuf(rand(eltype(stream), 48000, nchannels(stream.source))*0.1, samplerate(stream))
-        t1 = @async read!(stream, buf)
-        t2 = @async read!(stream, buf)
-        @test wait(t1) == 48000
-        @test wait(t2) == 48000
-        close(stream)
-    end
 end
diff --git a/test/runtests_local.jl b/test/runtests_local.jl
new file mode 100644
index 0000000..76356d9
--- /dev/null
+++ b/test/runtests_local.jl
@@ -0,0 +1,85 @@
+# This file has runs the normal tests and also adds tests that can only be run
+# locally on a machine with a sound card. It's mostly to put the library through
+# its paces assuming a human is listening.
+
+include("runtests.jl")
+
+# these default values are specific to my machines
+if is_windows()
+    default_indev = "Microphone Array (Realtek High "
+    default_outdev = "Speaker/Headphone (Realtek High"
+elseif is_apple()
+    default_indev = "Built-in Microph"
+    default_outdev = "Built-in Output"
+elseif is_linux()
+    default_indev = "default"
+    default_outdev = "default"
+end
+
+@testset ExtendedTestSet "Local Tests" begin
+    @testset "Open Default Device" begin
+        println("Recording...")
+        stream = PortAudioStream(2, 0)
+        buf = read(stream, 5s)
+        close(stream)
+        @test size(buf) == (round(Int, 5 * samplerate(stream)), nchannels(stream.source))
+        println("Playing back recording...")
+        stream = PortAudioStream(0, 2)
+        write(stream, buf)
+        println("flushing...")
+        flush(stream)
+        close(stream)
+        println("Testing pass-through")
+        stream = PortAudioStream(2, 2)
+        write(stream, stream, 5s)
+        flush(stream)
+        close(stream)
+        println("done")
+    end
+    @testset "Samplerate-converting writing" begin
+        stream = PortAudioStream(0, 2)
+        write(stream, SinSource(eltype(stream), samplerate(stream)*0.8, [220, 330]), 3s)
+        write(stream, SinSource(eltype(stream), samplerate(stream)*1.2, [220, 330]), 3s)
+        flush(stream)
+        close(stream)
+    end
+    @testset "Open Device by name" begin
+        stream = PortAudioStream(default_indev, default_outdev)
+        buf = read(stream, 0.001s)
+        @test size(buf) == (round(Int, 0.001 * samplerate(stream)), nchannels(stream.source))
+        write(stream, buf)
+        io = IOBuffer()
+        show(io, stream)
+        @test String(take!(io)) == """
+        PortAudio.PortAudioStream{Float32}
+          Samplerate: 44100.0Hz
+          Buffer Size: 4096 frames
+          2 channel sink: "$default_outdev"
+          2 channel source: "$default_indev\""""
+        close(stream)
+    end
+    @testset "Error on wrong name" begin
+        @test_throws ErrorException PortAudioStream("foobarbaz")
+    end
+    # no way to check that the right data is actually getting read or written here,
+    # but at least it's not crashing.
+    @testset "Queued Writing" begin
+        stream = PortAudioStream(0, 2)
+        buf = SampleBuf(rand(eltype(stream), 48000, nchannels(stream.sink))*0.1, samplerate(stream))
+        t1 = @async write(stream, buf)
+        t2 = @async write(stream, buf)
+        @test wait(t1) == 48000
+        @test wait(t2) == 48000
+        flush(stream)
+        close(stream)
+    end
+    @testset "Queued Reading" begin
+        stream = PortAudioStream(2, 0)
+        buf = SampleBuf(rand(eltype(stream), 48000, nchannels(stream.source))*0.1, samplerate(stream))
+        t1 = @async read!(stream, buf)
+        t2 = @async read!(stream, buf)
+        @test wait(t1) == 48000
+        @test wait(t2) == 48000
+        close(stream)
+    end
+end