FreeCalypso > hg > gsm-codec-lib
changeset 180:62c0359ff2a8
doc/Calypso-TCH-downlink: document use of tools on voice memos
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 30 Dec 2022 07:46:58 +0000 |
| parents | 6e39fc0134da |
| children | 3a0ee08a3b9d |
| files | doc/Calypso-TCH-downlink |
| diffstat | 1 files changed, 8 insertions(+), 0 deletions(-) [+] |
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--- a/doc/Calypso-TCH-downlink Fri Dec 30 07:23:24 2022 +0000 +++ b/doc/Calypso-TCH-downlink Fri Dec 30 07:46:58 2022 +0000 @@ -109,3 +109,11 @@ gsmx and calling library functions directly, and thus there is no FR1 counterpart to gsmefr-dlcap-dec - just use gsmfr-dlcap-gsmx followed by gsmfr-decode or gsmfr-decode-r. + +* In addition to TCH DL capture files, gsmfr-dlcap-parse also accepts the hex + output from fc-vm2hex, originating from TCS211 voice memo recordings, + including fc-vm2hex output in the case of VM recordings made in DTX mode. + However, if the objective is to play that VM recording and not just look at + parsed bits, the correct approach is to convert the VM file to gsmx with + fc-vm2gsmx, and then decode with gsmfr-decode. Using fc-vm2hex followed by + gsmfr-dlcap-gsmx instead of fc-vm2gsmx won't work!