AudioOutput, how does it work

[Hendrik]

Hi,

I want to use your AudioOuput for streaming my data (generated by code) to the speakers but I can't get it to work. The code I have so far.

AudioOutput ao = new AudioOutput();
ao.BitsPerSample = 16;
ao.SamplesPerSecond = 40000;
ao.IsStereo = true;
double[][] d2 = new double[2][];
d2[0] = data.samples;
d2[1] = data.samples;
ao.AddSamples(d2);
ao.Start();

But I hear no sound. What do I miss hear?

[ArctionPasi]

Hi,

it needs a sequential data flow.

I wrote an example, which contains MultiChannelDataPlaybackFeeder, which outputs samples at correct pace for AudioOutput component.

WpfAudioOutputDataFeedingFromDoubleArrays.zip

WPF audio output example

(9.56 KiB) Downloaded 558 times

I hope this helps

[Hendrik]

Hi,

that helped me allot. Thanks for that. I seems that the sound is looping all the time. Can I avoid this behavior that the sound will only play If new data is added?

Thanks.

[Hendrik]

Hi,

Any impact on this?

Thanks

[ArctionPasi]

The DirectSound buffers keep looping the sound if no new data is added. Keeeping the dataflow constant is important. Maybe you can set AudioOutput volume low to prevent it from being audible.

[Hendrik]

Thanks. I will do it that way.