Microphone Input

[frggr]

I need to have the microphone constantly recording while at the same time I
need to be able to get information in set intervals.

My attempt was to create a FrontEndSplitter with the microphone as the input.
I would then add a custom class that implements dataListener and dataProcessor
which would grab the data for a set amount of time. This listener would then
be the input into my front-end pipeline.

The problem I run into is that the dataListener never buffers any Data
Objects. The reason being that there is no new data available to be processed
by the listener until after you call stopRecording() on the microphone.

My question is there anyway to access the Data Objects before you call
stopRecording()?

[Nickolay V. Shmyrev]

I need to have the microphone constantly recording while at the same time I
need to be able to get information in set intervals.

Sorry, I haven't understood even this part. Can you elaborate on that?

[frggr]

Right now I'm using this snippet of code:

Microphone inputSource = new Microphone(<Microphone input variables go here>);
inputSource.initialize();

while(<Running Conditions>) {
    inputSource.startRecording();
    delay(100); //Just delays program execution for 100 ms
    inputSource.stopRecording();

    //Lots of other code
}

My entire program relies on this code and I don't want to rewrite large
portions of it, but I now need to introduce the ability to record the incoming
audio. My current method would introduce small amounts of lost data every
100ms.

My plan to fix this without rewriting large sections of code was to write a
class that acts like a pseudo microphone.

A class the implements dataListener and DataProcessor. It will then listen for
data coming out of the actual microphone which should be recording until the
program stops running.

When startRecording was called on the pseudo Microphone it will tell the
object to start grabbing data; When stopRecording is called it will
stopGrabbing data. The rest of my code would be able to run off of this.

The problem I am having is that the Microphone class doesn't create any data
the listener can see until after stopRecording is called. (Which I hope to
never call.) My question is if there is a way around this.

[Nickolay V. Shmyrev]

I still do not understand you and I think you still don't understand how to
use sphinx4 properly.

Microphone recording is already running in separate thread, you can do things
while it's recording. You can retrieve arbitrary number of frames you need and
then process them in your application. There is no need to stop recording or
start it between this.

You can just do

microphone.startRecording

while (true) {
   microphone.getData()
   processData()
}