Hello,
I'm using the Walkie–Talkie demo unmodified except for the following change in the Connector service:
In an attempt to reduce the required data bandwidth I would like to use 8-bit with an 11025 sample rate. However, whenever I change the word size to 8 bit I get the following error:
I am fairly certain that I have generated and played 8-bit wave data on this phone. I think the hardware supports 8-bit.
(As an aside – I see the Android audio media function getParameters(Keys), but no one seems to list what the keys are. Could I use this somehow to verify the phones audio capabilities?)
I am using version 1.62 of the Audio library. Any idea what the problem could be?
Thanks,
Barry.
I'm using the Walkie–Talkie demo unmodified except for the following change in the Connector service:
B4X:
Sub Service_Create
'start listening for BT and wifi connections
server.Initialize(port, "server")
Try
server.Listen
Catch
WifiStatus = "Error listening: " & LastException
UpdateUI
End Try
admin.Initialize("admin")
serial1.Initialize("serial1")
If serial1.IsEnabled Then serial1.Listen2("na", uuid)
pe.Initialize("pe")
pe_ConnectivityChanged("", "", Null)
' audioStream.Initialize("AudioStream", 22050, True, 16, audioStream.VOLUME_MUSIC) ' original
' audioStream.Initialize("AudioStream", 11025, True, 16, audioStream.VOLUME_MUSIC) ' works
' audioStream.Initialize("AudioStream", 22050, True, 8, audioStream.VOLUME_MUSIC) ' generates error
audioStream.Initialize("AudioStream", 11025, True, 8, audioStream.VOLUME_MUSIC) ' generates error
End SubIn an attempt to reduce the required data bandwidth I would like to use 8-bit with an 11025 sample rate. However, whenever I change the word size to 8 bit I get the following error:
B4X:
Installing file.
PackageAdded: package:b4a.example.walkietalkie
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Service (connector) Create **
java.lang.NegativeArraySizeException: -2
at anywheresoftware.b4a.audio.AudioStreamer.Initialize2(AudioStreamer.java:77)
at anywheresoftware.b4a.audio.AudioStreamer.Initialize(AudioStreamer.java:65)
at b4a.example.walkietalkie.connector._service_create(connector.java:521)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:174)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:158)
at b4a.example.walkietalkie.connector.onCreate(connector.java:45)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2572)
at android.app.ActivityThread.access$1800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
java.lang.RuntimeException: Unable to create service b4a.example.walkietalkie.connector: java.lang.RuntimeException: java.lang.NegativeArraySizeException: -2
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2582)
at android.app.ActivityThread.access$1800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: java.lang.NegativeArraySizeException: -2
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:200)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:158)
at b4a.example.walkietalkie.connector.onCreate(connector.java:45)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2572)
... 10 more
Caused by: java.lang.NegativeArraySizeException: -2
at anywheresoftware.b4a.audio.AudioStreamer.Initialize2(AudioStreamer.java:77)
at anywheresoftware.b4a.audio.AudioStreamer.Initialize(AudioStreamer.java:65)
at b4a.example.walkietalkie.connector._service_create(connector.java:521)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:174)
... 13 moreI am fairly certain that I have generated and played 8-bit wave data on this phone. I think the hardware supports 8-bit.
(As an aside – I see the Android audio media function getParameters(Keys), but no one seems to list what the keys are. Could I use this somehow to verify the phones audio capabilities?)
I am using version 1.62 of the Audio library. Any idea what the problem could be?
Thanks,
Barry.