Gnuradio/Wav to Waterfall: Difference between revisions
From charlesreid1
| Line 14: | Line 14: | ||
<pre> | <pre> | ||
mediainfo HDSDR_20140505_180828Z_437209kHz_RF.wav | |||
General | General | ||
Complete name : | Complete name : HDSDR_20140505_180828Z_437209kHz_RF.wav | ||
Format : Wave | Format : Wave | ||
File size : | File size : 311 MiB | ||
Duration : | Duration : 3mn 28s | ||
Overall bit rate mode : Constant | Overall bit rate mode : Constant | ||
Overall bit rate : | Overall bit rate : 12.5 Mbps | ||
Audio | Audio | ||
| Line 28: | Line 28: | ||
Format settings, Sign : Signed | Format settings, Sign : Signed | ||
Codec ID : 1 | Codec ID : 1 | ||
Duration : | Duration : 3mn 28s | ||
Bit rate mode : Constant | Bit rate mode : Constant | ||
Bit rate : | Bit rate : 12.5 Mbps | ||
Channel(s) : | Channel(s) : 2 channels | ||
Sampling rate : | Sampling rate : 391 KHz | ||
Bit depth : 16 bits | Bit depth : 16 bits | ||
Stream size : | Stream size : 311 MiB (100%)</pre> | ||
</pre> | |||
Revision as of 23:33, 17 August 2015
This covers my first foray into signal decoding with SDR and gnuradio.
Recording the Signal
I basically wanted to record a signal from an Amateur Radio WebSDR station, and figure out how to import it into gnuradio for signal analysis. Recording the signal was easy - the web interface actually has a recording capability. So it's as simple as clicking a button.
The Wav File
Okay, now I had a wave file with a recording of a signal. But what information was contained in the recording?
Getting Info about the Wav File
You can use the mediainfo utility to get some info on the wav file:
mediainfo HDSDR_20140505_180828Z_437209kHz_RF.wav General Complete name : HDSDR_20140505_180828Z_437209kHz_RF.wav Format : Wave File size : 311 MiB Duration : 3mn 28s Overall bit rate mode : Constant Overall bit rate : 12.5 Mbps Audio Format : PCM Format settings, Endianness : Little Format settings, Sign : Signed Codec ID : 1 Duration : 3mn 28s Bit rate mode : Constant Bit rate : 12.5 Mbps Channel(s) : 2 channels Sampling rate : 391 KHz Bit depth : 16 bits Stream size : 311 MiB (100%)