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Edit: -1 of 1
Time: 2017-06-19 17:28:54
Note: /pd/pd/docs/AndroidLatency/edit

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Latency tester for Android applications made with [http://gitorious.org/pdlib/pages/Home !LibPd].

Displays the time for a sound to be triggered in Pd through to detection in the microphone by bonk~ - recording latency will be roughly 1/2 this time. The bonk~ detector itself seems to add between 5ms and 15ms on to the total time in the round-trip.

= Run It =

 1. Download the apk to your phone: [http://pure-data.info/PureDataLatencyTester.apk !PureDataLatencyTester.apk] (need to enable 'Allow Unknown Sources' in the device's Settings >> Applications >> Unknown sources)
 2. Launch the app.
 3. Turn the volume all the way up and wait for 11 'ponk' sounds - numbers should now appear.
 4. Record the stable median value in the table below:

= Results =

|| Device Name || OS Version || Round-trip Latency ||
|| Inq Cloud-touch || 2.2 || 560ms ||
|| Samsung Galaxy Tab || 2.2 || 650ms ||
|| Acer Iconia A500 || 3.2 || 750ms ||
|| HTC Legend || 2.2 || 540ms ||
|| HTC Sensation || 2.3 || 580ms ||
|| Samsumg Galaxy Nexus || 4.2.2 || 512ms ||
|| Samsung Galaxy S || 2.3.3 || 535ms ||
|| Samsung Galaxy S || 2.3.6 || lots of jitter ||
|| Samsung Galaxy S Plus || 2.3.3 || 530ms ||
|| Samsung Galaxy S II (with Cyanogenmod 7) || 2.3.7 || 558ms ||
|| Samsung Galaxy Tab 10.1 || 3.1 || 539ms ||
|| Samsung Nexus S || 2.3.6 || 555ms ||
|| Evo 4g Cyanogenmod || 2.3.7 || 580ms ||
|| Samsung Infuse || 2.2.1 || 600ms ||
|| Samsung Droid Charge || 2.2.1 || 760ms ||
|| lg optimus gt540 || 1.6 || 498ms ||
|| nexus one || 2.3.3 || 600ms ||
|| asus transfromer || 3.2 || 474ms ||
|| LG Optimus 2x || 2.2.2 || 460ms ||
|| HTC Desire || 2.2 || 580ms ||
|| SE Experia ARC || 2.3.3 || 520ms ||
|| Woxter 70W || 2.3 || crashes... ||
|| Nexus S || 4.0 (beta) || 380ms ||
|| Sony Xperia P || 4.0.4 || 644ms ||
|| Sony Xperia P || 4.1.2 || 640ms (sometimes 740ms) ||
|| Sony Xperia V || 4.1.2 || 683ms ||
|| Sony Xperia Z3+ || 7.0 || 650ms ||
|| '''Reference measurements''' || || ||
|| iPod Touch 2g || iOS 3.1.2 || 90ms ||
|| Macbook Pro || ? || 48ms ||

= Other stuff =

 * Android source code zip file: [http://puredata.info/docs/PureDataLatencyTester.zip !PureDataLatencyTester.zip]
 * !RjDj scene by Fredrik Olofsson [http://puredata.info/docs/PureDataLatencyTester.rjz !PureDataLatencyTester.rjz]


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