对比了一下google voice和科大讯飞的识别能力。google voice手里没货，用的是youtube上的第三方测试视频。例子也是抄的。

+----------+-------------+----------+
|          |google voice |讯飞      |
+----------+-------------+----------+
|提醒      |Y            |Y         |
+----------+-------------+----------+
|定时      |Y            |N         |
+----------+-------------+----------+
|播放歌曲  |Y            |Y         |
+----------+-------------+----------+
|关闭无线  |Y            |N         |
+----------+-------------+----------+
|天气      |Y            |Y         |
+----------+-------------+----------+
|静音模式  |Y            |N         |
+----------+-------------+----------+
|搜索地图  |Y            |Y         |
+----------+-------------+----------+
|搜索路径  |Y            |Y         |
+----------+-------------+----------+
|搜索商家  |Y            |弱        |
+----------+-------------+----------+
|时间搜索  |Y            |弱        |
+----------+-------------+----------+
|时区查询  |Y            |N         |
+----------+-------------+----------+
|节日查询  |Y            |Y         |
+----------+-------------+----------+
|汇率      |Y            |Y         |
+----------+-------------+----------+
|汇率换算  |Y            |Y         |
+----------+-------------+----------+
|进制转换  |Y            |N         |
+----------+-------------+----------+
|单位换算  |Y            |N         |
+----------+-------------+----------+
|数字计算  |Y            |N         |
+----------+-------------+----------+
|航班查询  |Y            |Y         |
+----------+-------------+----------+
|火车查询  |Y            |Y         |
+----------+-------------+----------+
|股票查询  |Y            |Y         |
+----------+-------------+----------+
|定义查询  |Y            |Y         |
+----------+-------------+----------+
|区号      |Y            |N         |
+----------+-------------+----------+
|商家号码  |Y            |Y         |
+----------+-------------+----------+
|打电话    |Y            |Y         |
+----------+-------------+----------+