Equilizer3Bands usage

[geoffw64]

Hi Phil,
I see you've added a 3 band equaliser to the library. Not sure if you want help with testing but I decided to give it a go.
Is this the right technique to use the equaliser with volume control?

VolumeStream volume_stream(I2S_stream);
Equilizer3Bands equilized_stream(volume_stream);
ConfigEquilizer3Bands eq_config;
... followed by..
volume_stream.setVolume(0.1);
eq_config.gain_low = 1.0;
eq_config.gain_medium = 0.7;
eq_config.gain_high = 0.7;
dec.setOutput(equilized_stream); // Sends stream with reduced volume & equilisation
...

The equalisation seems to work nicely, however I am getting louder volume than expected. Have I used it incorrectly?
I'm assuming that a gain value of 1.0 means no attenuation or boost, although i haven't traced through the code in detail.

[pschatzmann]

Most likly you forgot to call begin on the VolumeStream

[geoffw64]

Yes, that was it. :) Thanks.

[jsonslim]

Hi, I'm also trying to implement it, but I didn't find any examples. Did you removed it?

[pschatzmann]

There is nothing special about this and you would just build an processing chain like described in Introduction Wiki: Changing the Signal!

Here is the example using it with A2DP.