hardware/drawable-anydpi-v21/ic_speaker_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M17,2L7,2c-1.1,0 -2,0.9 -2,2v16c0,1.1 0.9,1.99 2,1.99L17,22c1.1,0 2,-0.9 2,-2L19,4c0,-1.1 -0.9,-2 -2,-2zM12,4c1.1,0 2,0.9 2,2s-0.9,2 -2,2c-1.11,0 -2,-0.9 -2,-2s0.89,-2 2,-2zM12,20c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5zM12,12c-1.66,0 -3,1.34 -3,3s1.34,3 3,3 3,-1.34 3,-3 -1.34,-3 -3,-3z"/>
</vector>