Soundwave Bold Duotone icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><g fill="currentColor"><path fill-rule="evenodd" d="M12 3.25a.75.75 0 0 1 .75.75v16a.75.75 0 0 1-1.5 0V4a.75.75 0 0 1 .75-.75Zm-8 7a.75.75 0 0 1 .75.75v2a.75.75 0 0 1-1.5 0v-2a.75.75 0 0 1 .75-.75Zm16 0a.75.75 0 0 1 .75.75v2a.75.75 0 0 1-1.5 0v-2a.75.75 0 0 1 .75-.75Z" clip-rule="evenodd"/><path d="M16.75 7a.75.75 0 0 0-1.5 0v10a.75.75 0 0 0 1.5 0V7Zm-8 0a.75.75 0 0 0-1.5 0v10a.75.75 0 0 0 1.5 0V7Z" opacity=".5"/></g></svg>