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Digital Voice Formats Discussions regarding different digital radio voice formats, including AMBE, IMBE, VSELP, GSM, CELP, MELP, and others.

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Old 04-02-2014, 3:58 PM
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Question Sound samples

Hi guys, real quick question.
Is there any sites of audio clips of the newest systems? P25 phase 2, ltr datastream,,,,?
Ive seen/heard the older ones, anything new?
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Old 04-02-2014, 4:18 PM
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Something like this...?

Digital*Modes*Samples
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Old 04-02-2014, 4:26 PM
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Something like that, but I've seen that page 1,000 times... Newer please
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Old 04-02-2014, 5:15 PM
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Wow - that page is pretty extensive -- what isn't there that you are looking for?
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Old 04-02-2014, 5:23 PM
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I didnt see P25 phase 2, ltr datastream in there... Thought there would be newer stuff.. But you are right, that is 1 heck of a list.. As with any list, something is not on it.. Just seeing whats out there I havent heard yet.
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Old 04-02-2014, 5:26 PM
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Quote:
Originally Posted by mainetrunk View Post
I didnt see P25 phase 2, ltr datastream in there... Thought there would be newer stuff.. But you are right, that is 1 heck of a list.. As with any list, something is not on it.. Just seeing whats out there I havent heard yet.
LTR is subaudible, so it's sort of hard to hear it.
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Old 04-02-2014, 5:43 PM
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Maybe this will help:
W2SJW - Radio Sounds
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Old 04-02-2014, 5:47 PM
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I just recorded a Phase 1 and Phase 2 P25 control channel.... they sound the same to me.

From my understanding, Phase 1 and Phase 2 control channel is the same has a few additional things added to P25 / P2 data (but I don't think you can hear that difference).
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Old 04-29-2014, 4:13 PM
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I'd also be interested to hear some P25 P2 voice channels and other new formats if anyone does have any samples. The current digital samples pages are quite old now.
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Old 05-01-2014, 8:03 PM
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Quote:
Originally Posted by bben95 View Post
I'd also be interested to hear some P25 P2 voice channels and other new formats if anyone does have any samples. The current digital samples pages are quite old now.
here is a link that i posted on youtube of some audio clips of the phase 2 systems near me... P25 Phase II Audio clips - YouTube

the first clip im not sure if its a true p2 system due to it being clear and the second clip is a true p2 system, if anyone here could help me out?
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Old 05-01-2014, 9:37 PM
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Default Sound samples

Quote:
Originally Posted by bben95 View Post
I'd also be interested to hear some P25 P2 voice channels and other new formats if anyone does have any samples. The current digital samples pages are quite old now.
I recorded a few P25 Phase 2 transmissions. Here you go:

https://www.youtube.com/edit?o=U&video_id=mJOTGeZzfoo

https://www.youtube.com/watch?v=dFm9sQCeYSc

https://www.youtube.com/watch?v=Re6Iw4r-5NA
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Old 05-26-2014, 6:09 AM
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Thanks for the links guys, but not exactly what I was looking for. I was looking for unfiltered recordings of the channels (voice channel and trunking channel), listened to in FM mode.
Also maybe a good quality recording of some phase 2, recorded directly from the audio out of the scanner. (Not through it's speaker)
I want to be able to compare how it sounds with DMR.
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