private static boolean AACStreamingSupported() {
		if (Build.VERSION.SDK_INT<14) return false;
		try {
			MediaRecorder.OutputFormat.class.getField("AAC_ADTS");
			return true;
		} catch (Exception e) {
			return false;
		}
	}
There are 13 supported frequencies by ADTS. *
src/net/majorkernelpanic/streaming/audio/AACStream.java