AE CC 2014 audio preview speed up error... "chipmunking" randomly

I"ve been having an issue where the audio during a full RAM preview with video or even if it's just audio preview (no visual) will play sped up. Sometimes it will speed up after having previewed correctly once, but every subsequent time will result in "chipmunking". This has happened on two different workstations.
These are wav files for the audio. The framerate is correct in the preview window.

AE 13.1.1.3
OS 10.10.1
iMac(27" Mid 2011)
3.4 GHz Intel Core i7
32 GB 1333 MHz DDR3
Using internal audio outputting through the headphone jack
Wave files are 96 KHz / 24 bit
The problem is not consistent. And there was a new development: It also played slowed down at a lower pitch during one amusing preview.
Maybe this is an OS X error when other sound programs are used and then quit, and the machine had to play different types of audio specs. I also use Soundtrack Pro for quick audio editing and Pro Tools for heavy sound design. But both of those programs playback audio correctly 100% of the time.
At this time, I had quit every program and left the computer for the night (but not a restart) and now it appears to be previewing correctly. But the odd thing is that this was happening on my laptop (same specs for the OS and software) in front of a client the other week (hitting the full RAM preview resulted in accurate video, but fast, pitched up audio that ended before the video since it was pitched up)
This problem does not extend to renders. Only previewing.

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OS 10.10.1
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3.4 GHz Intel Core i7
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Wave files are 96 KHz / 24 bit
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Maybe this is an OS X error when other sound programs are used and then quit, and the machine had to play different types of audio specs. I also use Soundtrack Pro for quick audio editing and Pro Tools for heavy sound design. But both of those programs playback audio correctly 100% of the time.
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This problem does not extend to renders. Only previewing.

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Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)
HP Pavilion 061 DQ177A-ABA A450N
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IDE\DiskST3160021A_____________________________3.06___, Bus Type ATA, Bus Address [0,0]
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bump2.

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Mod Ports Module-Type                         Model              Status
2    32     1/10 Gbps Ethernet Module           N7K-F132XP-15      ok
sw1-gd78(config-if)# sh module
Mod Ports Module-Type                         Model              Status
2    48     1/2/4/8 Gbps FC Module              DS-X9248-96K9      ok
4    8      10 Gbps FCoE Module                 DS-X9708-K9        ok
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2    5.2(2)          1.1     20:41:00:0d:ec:fb:8a:00 to 20:70:00:0d:ec:fb:8a:00
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7    5.2(2)          1.8     --
8    5.2(2)          1.8     --
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!Command: show running-config interface Ethernet4/6
!Time: Mon Feb 20 22:56:12 2012
version 5.2(2)
interface Ethernet4/6
no shutdown
sw1-gd78(config-if)# no shut
sw1-gd78(config-if)# speed 1000
ERROR: Ethernet4/6: Configuration does not match the port capability.
sw1-gd72# sh int ethernet4/6 capabilities
Ethernet4/6
Model:                 DS-X9708-K9
Type (SFP capable):    10Gbase-SR
Speed:                 1000,10000
Duplex:                full
Trunk encap. type:     802.1Q
Channel:               yes
Broadcast suppression: percentage(0-100)
Flowcontrol:           rx-(off/on/desired),tx-(off/on/desired)
Rate mode:             dedicated
QOS scheduling:        rx-(2q4t),tx-(1p3q4t)
CoS rewrite:           yes
ToS rewrite:           yes
SPAN:                  yes
UDLD:                  yes
Link Debounce:         yes
Link Debounce Time:    yes
MDIX:                  no
Port Group Members:    none
TDR capable:           no
FabricPath capable:    yes
Port mode:             Switched
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Ethernet4/6
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    name is CISCO-FINISAR
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Voltage        3.29 V         3.63 V      2.97 V      3.46 V        3.13 V
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Rx Power       -2.21 dBm       1.99 dBm -13.97 dBm   -1.00 dBm     -9.91 dBm
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Ankit,
You are trying to set speed 1000 on a 10g sfp.
type is 10Gbase-SR
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TwoPointOh
I work on behalf of HP
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