频谱图的参数上图是一个 flac 无损文件的频谱图,最上面是这个文件的外在参数,采样率 48kHz、24bit,横轴是时间,纵轴是声音的频率,不同的颜色代表着不同的响度,也就是音量,可以参考图上最右侧的色条;当音量小到 -120db 以下,颜色就是黑色的,表示几乎没有声音。
Up to 10 simultaneous connections
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Interesting! FIND ACCOUNTS BY OWNERS case is pretty much the same and the Elephant has won there - except the fact that documents of accounts are much smaller than of products. The delivered throughput performance difference is substantial - 7170 QPS vs 3624 QPS, 1.98x win for MongoDB, but latency is lower for Postgres.