Yeah, so the difference that I've been using between "purrs" and "chirps" has been mostly from the front page.
Purrs: Regular and low frequency. Consist of 15 "pulses" at a given frequency, one is notably shorter than the other.
Chirps: Irregular, and higher-frequency. Chirps happen in the 800-1200hz range, and frequently consist of "triplets" of 3 chirps in a pattern of "high" and "low" chirps. Sometimes sounds in that frequency band happen not in triplets, but I've ignored those as they appear to be ambient noise.
Ok, I gave Vent Aileron's Audio a listen, and found some interesting stuff. First off, you and Mykl's audio was cleaner, so the counts for Vent's audio might be off by +/- 1 or 2.
Here's the data:
Code:
Purrs chirp triplets Purrs/min Chirp Triplets/min
Merope 5 18 7 6.0 2.3
Merope 5 cleanest 18 10 6.0 3.3
Near Merope 18 14 6.0 4.7
Near Merope Cleanest 17 13 5.7 4.3
Merope 5c 17 9 5.7 3.0
Merope 5c Cleanest 18 4 6.0 1.3
Praea Theia RT-Z D13-7 33 6 11.0 2.0
Merope Deep Space (Vent Aileron) 32 7 10.7 2.3
NCG 2546 Sector CR-U D3-29 A 1 High Orbit 31 7 10.3 2.3
NCG 2546 Sector CR-U D3-29 Triple Take 34 8 11.3 2.7
Unknown Probe (1hr Recording from NetSlayer) 17 11 5.7 3.7
Observations:
- Immediately noticeable is that the purr rate for the audio from Vent Aileron is almost double that of the other recordings. I initially thought those audio files got sped up, because the "Purr" duration and pitch also seems altered in those recordings, but the chirps pitch and duration is the same as in Mykl's recordings. I re-downloaded the files to double check, as well. This is wierd.
- The 1hr recording from netslayer, interestingly, is at the "normal" purr rate. I, unfortunately, don't have a location for this recording. It is an hour long recording, and interstingly, does not have "scoop/eject" noises in it, so I suspect it's a "fresh, untainted" UP. Not sure what that means.
- In the recordings from Mykl, the rate of purrs is constant (within a reasonable margin of error). In the recordings from Vent the rate of purrs is constant, but different.
- In the recordings from Mykl, the rate of chirp triplets varies (good evidence it varies) possibly with a weak correlation to location (unsure, lack of data). In the recordings from Vent, the rate of chirp triplets is constant (within a reasonable margin of error).
Conclusion:
- Purr rate is not linked to the system you are in. It does vary, but cause is unknown.
- Chirp rate is likely not linked to location. We did see variations in chirp rate, but only within the Merope system.
And now for another note: Remember, everyone, when you're trying to solve a problem like this, to
think like a game designer. The designers of this puzzle are humans, and have designed it to be solved by us players.
