With audio like this, it is really difficult to get a decent quality. As jack and Coke stated, it is highly compressed. Low bit-rate sampling, poor mics, and ambient noise make it very difficult to isolate peaks. Even with the very expensive software and hardware I have (Pro Tools, Peak, Wavelab, etc), I still wasn't able to really get it cleaned up. I had to apply a few filters to rid the clip of lower audio levels and ambient noise/echos with soft attacks. As JC said, the average is a solid 13, but I did see a few bursts of 16 to 17.
In a perfect world, these clips would be recorded with the audio to DAT, using a high-quality, high-isolation mic, in a dead space (one that has been dampened), with the mic aimed at the sound source.
Since most don't have those resources, I would suggest that for all of you recording clips to test ROF, try to keep away from rooms, or outdoor spaces with lots of flat surfaces. Grass, leavy trees, and shrubs help eliminate reflections. Also, try encoding at the highest rate you can get away with for your connection speed. Finally, the "sharpest" sounds, those with the most attack and clarity, are captured close to the sound source. So, try to get the camera mic as close to the marker as possible without clipping the sound.
As far as humanely being able to hit those speeds, it isn't too far out. I can't remember too well back to the tests we ran in Physiology in college, but based upon recharge rates of neurons and fast-twitch muscle, I would suspect that 20 could be reached in a burst, without bounce or things like that. Beyond that would be quite questionable, though.
In a perfect world, these clips would be recorded with the audio to DAT, using a high-quality, high-isolation mic, in a dead space (one that has been dampened), with the mic aimed at the sound source.
Since most don't have those resources, I would suggest that for all of you recording clips to test ROF, try to keep away from rooms, or outdoor spaces with lots of flat surfaces. Grass, leavy trees, and shrubs help eliminate reflections. Also, try encoding at the highest rate you can get away with for your connection speed. Finally, the "sharpest" sounds, those with the most attack and clarity, are captured close to the sound source. So, try to get the camera mic as close to the marker as possible without clipping the sound.
As far as humanely being able to hit those speeds, it isn't too far out. I can't remember too well back to the tests we ran in Physiology in college, but based upon recharge rates of neurons and fast-twitch muscle, I would suspect that 20 could be reached in a burst, without bounce or things like that. Beyond that would be quite questionable, though.
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