Re: [Freetel-codec2] transmit testing of 700C frames
Hi Alan, I have seen these crashes myself, in the LDPC encoder, with memory corruption, in the libcodec2 version packaged in Debian Buster (0.8 if I recall correctly) . I believe they are 32 bit specific but I did not have the resources to investigate further. I have not tested on ARM 64 bit platforms but I assume they don't have the issue. Regards, Adrian On December 5, 2019 3:09:08 PM UTC, Al Beard wrote: >Hi all, > >In my testing of "parrot" a repeater for Codec2 mode 700D, >there have been crashes, I believe in the transmit of the >off-air Codec2 frames. They may be corrupt but these off-air >files can be successfully decoded to Q5 speech. > >I'm looking for a command line tool to do this please? > >I note in the "ofdm_mod.c" header: >Given an input file of bits (note one bit per char format), outputs > a raw file (8kHz, 16 bit shorts) of OFDM modem samples ready to send > over a HF radio channel. > >Is there a command line tool to convert "packed codec bits" to the >format "ofdm_mod" expects? > >I'm not a C programmer, a novice. > >Alan VK2ZIW > >--- >Alan Beard > >OpenWebMail 2.53 > > > >___ >Freetel-codec2 mailing list >Freetel-codec2@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/freetel-codec2 ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
[Freetel-codec2] transmit testing of 700C frames
Hi all, In my testing of "parrot" a repeater for Codec2 mode 700D, there have been crashes, I believe in the transmit of the off-air Codec2 frames. They may be corrupt but these off-air files can be successfully decoded to Q5 speech. I'm looking for a command line tool to do this please? I note in the "ofdm_mod.c" header: Given an input file of bits (note one bit per char format), outputs a raw file (8kHz, 16 bit shorts) of OFDM modem samples ready to send over a HF radio channel. Is there a command line tool to convert "packed codec bits" to the format "ofdm_mod" expects? I'm not a C programmer, a novice. Alan VK2ZIW --- Alan Beard OpenWebMail 2.53 ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
[Freetel-codec2] transmit testing of 700C frames
Hi all, In my testing of "parrot" a repeater for Codec2 mode 700D, there have been crashes, I believe in the transmit of the off-air Codec2 frames. They may be corrupt but these off-air files can be successfully decoded to Q5 speech. I'm looking for a command line tool to do this please? I note in the "ofdm_mod.c" header: Given an input file of bits (note one bit per char format), outputs a raw file (8kHz, 16 bit shorts) of OFDM modem samples ready to send over a HF radio channel. Is there a command line tool to convert "packed codec bits" to the format "ofdm_mod" expects? I'm not a C programmer, a novice. Alan VK2ZIW --- Alan Beard OpenWebMail 2.53 ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
[Freetel-codec2] transmit testing of 700C frames
Hi all, In my testing of "parrot" a repeater for Codec2 mode 700D, there have been crashes, I believe in the transmit of the off-air Codec2 frames. They may be corrupt but these off-air files can be successfully decoded to Q5 speech. I'm looking for a command line tool to do this please? I note in the "ofdm_mod.c" header: Given an input file of bits (note one bit per char format), outputs a raw file (8kHz, 16 bit shorts) of OFDM modem samples ready to send over a HF radio channel. Is there a command line tool to convert "packed codec bits" to the format "ofdm_mod" expects? I'm not a C programmer, a novice. Alan VK2ZIW --- Alan Beard OpenWebMail 2.53 ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
