File Writer/Reader Format Request
Quote from CorNic East on 27/04/2022, 17:17It would be a very nice feature to be able to save (and recall) simple 16-bit unsigned integer recordings ...
- Type 1 : Even number of unscaled 2's compliment, 16-bit, byte reversed/big-endian, I-Q binary samples (byte swapped on x86 processors)
- Type 2: Even number of unscaled 2's compliment, 16-bit, NOT byte reversed/little-endian, I-Q binary samples (NOT byte swapped on x86 processors)
Both files should have a file extension of *.bin
As an option, you can save an additional parallel file of all the header information (i.e. Fc, Span, SR, Gain, Antenna, ...), this wile will be plain text (*.txt) with the same name as the above *.bin file
Of course it will be the responsibility of the user to know how to play these files back (i.e. Sample Rate), which bring up another point of how to playback arbitrary waveform files using the V6.
It would be a very nice feature to be able to save (and recall) simple 16-bit unsigned integer recordings ...
- Type 1 : Even number of unscaled 2's compliment, 16-bit, byte reversed/big-endian, I-Q binary samples (byte swapped on x86 processors)
- Type 2: Even number of unscaled 2's compliment, 16-bit, NOT byte reversed/little-endian, I-Q binary samples (NOT byte swapped on x86 processors)
Both files should have a file extension of *.bin
As an option, you can save an additional parallel file of all the header information (i.e. Fc, Span, SR, Gain, Antenna, ...), this wile will be plain text (*.txt) with the same name as the above *.bin file
Of course it will be the responsibility of the user to know how to play these files back (i.e. Sample Rate), which bring up another point of how to playback arbitrary waveform files using the V6.
Quote from g3gg0 on 27/04/2022, 17:59On top of that, as a general recommendation: the .cfile format used in GNU Radio.
3. interleaved float32 I/Q values normalized to -1 .. +1 without any header
Where the filename usually contains information about the sampling rate.
Some people/tools gave names like "gsm_today_32.cfile" which meant decimation rate of 32 (on the native 64MHz USRP clock).
On top of that, as a general recommendation: the .cfile format used in GNU Radio.
3. interleaved float32 I/Q values normalized to -1 .. +1 without any header
Where the filename usually contains information about the sampling rate.
Some people/tools gave names like "gsm_today_32.cfile" which meant decimation rate of 32 (on the native 64MHz USRP clock).
Quote from AdminTC on 27/04/2022, 19:59Please send us sample files with accurate description then we can work on it (e.g. for verification).
Please send us sample files with accurate description then we can work on it (e.g. for verification).
Quote from CorNic East on 27/04/2022, 20:32Will do, I will make some fresh cuts of either the FM band or a Motorola FMRS type of radio (this way you can easily verify).
Will do, I will make some fresh cuts of either the FM band or a Motorola FMRS type of radio (this way you can easily verify).
Quote from CorNic East on 28/04/2022, 16:57Does Aaronia have a server/portal where I can drop these files, or should I put them on my Google Drive?
Does Aaronia have a server/portal where I can drop these files, or should I put them on my Google Drive?
Quote from mm_dev on 29/04/2022, 11:27At the moment we do not have a public upload site (this is being worked on). If you have a hosting service available you can use that and provide us with the link.
At the moment we do not have a public upload site (this is being worked on). If you have a hosting service available you can use that and provide us with the link.
Quote from CorNic East on 03/05/2022, 17:13I just send a Google Drive notification to [email protected] to pick up the capture files.
I just send a Google Drive notification to [email protected] to pick up the capture files.