Aphire
Posts: 3
Joined: Wed May 27, 2015 3:43 pm
Location: Somerset, UK

USB Dongle for speed.

Wed May 27, 2015 3:50 pm

Good day,

I am looking to use my pi2 for a speech recognition project, however I am finding using the wifi adapter I have now (150/Mbps 802.11N from the pi hut) can be a bit slow when uploading recorded speech for recognition (I need free form dictation so offline speech recognition will not be viable)

I am recording at the lowest possible sample rate for the microphone using PyAudio so now I am just looking for pure up/download speed.

Can anyone recommend a good alternative?

Thanks in advance!
Alexon

elatllat
Posts: 1337
Joined: Sat Dec 17, 2011 5:05 pm

Re: USB Dongle for speed.

Thu May 28, 2015 1:09 am

What's your speed test result:
http://www.dslreports.com/speedtest

Most people are limited by there ISP speed not the local hardware.

Try reducing the bit depth and compressing it with flac.
SBC with 32GB RAM: https://hardkernel.com

FAQ : https://raspberrypi.stackexchange.com

Unanswered: https://www.raspberrypi.org/forums/search.php?search_id=unanswered

Aphire
Posts: 3
Joined: Wed May 27, 2015 3:43 pm
Location: Somerset, UK

Re: USB Dongle for speed.

Thu May 28, 2015 7:38 am

Result from speed test is : Speed Test » 25.5/21.68 megabit/second

I am actually already using flac, it was working quite nicely on my desk, I have noticed the results decreasing ever since mounting it on the wall across the room, I wonder if it may have something to do with the range of the adapter? (it is still in the same room as the router though)

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