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content/posts/20240720130238-low_latency_audio_measurement.md
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title = "low latency audio: measurement" | ||
date = 2024-07-20T13:02:00+08:00 | ||
tags = ["PUBLIC"] | ||
draft = false | ||
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终于有时间做一个测试,回答长久以来(见[low latency audio]({{< relref "20211130195311-low_latency_audio.md" >}}))很有疑问的一个问题。 | ||
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我们常用的语音通话服务的延迟究竟是多少。 | ||
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<!--more--> | ||
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## 测试手段 {#测试手段} | ||
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同样的网络环境中,两台设备分别在麦克风/扬声器附近放一个麦克风。 | ||
两个麦克风分别作为左右声道接入声卡录音。 | ||
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## 测试结果 {#测试结果} | ||
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### 微信语音 {#微信语音} | ||
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{{< figure src="/ox-hugo/2024-07-20_11-53-29_screenshot.png" >}} | ||
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\\[1.571-0.047=0.524s\\] | ||
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### 腾讯会议 {#腾讯会议} | ||
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![](/ox-hugo/2024-07-20_11-55-01_screenshot.png) | ||
\\[1.563-1.173=0.390s\\] | ||
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### 电话,联通-电信 {#电话-联通-电信} | ||
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![](/ox-hugo/2024-07-20_11-55-45_screenshot.png) | ||
\\[1.652-1.329=0.321s\\] | ||
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### lltalk {#lltalk} | ||
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![](/ox-hugo/2024-07-20_11-56-44_screenshot.png) | ||
\\[2.173-2.145=0.028s\\] |