[FFmpeg-user] G723.1 conversion to PCM

Tue Sep 25 03:13:15 EEST 2018

For the issue of converting G723.1 to PCM format – please see the below input and output and advise.  

C:\ffmpeg\bin>ffmpeg -acodec g723.1 Robinson.wav -f PCM robinsonconverted.wav

ffmpeg version N-92043-g0f36ad514c Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 8.2.1 (GCC) 20180813

  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth

  libavutil      56. 19.101 / 56. 19.101

  libavcodec     58. 31.100 / 58. 31.100

  libavformat    58. 18.102 / 58. 18.102

  libavdevice    58.  4.104 / 58.  4.104

  libavfilter     7. 32.100 /  7. 32.100

  libswscale      5.  2.100 /  5.  2.100

  libswresample   3.  2.100 /  3.  2.100

  libpostproc    55.  2.100 / 55.  2.100

Output #0, wav, to 'Robinson.wav':

Output file #0 does not contain any stream

C:\ffmpeg\bin>ffmpeg -i Robinson.wav g723.1 -f robinsonconverted.wav PCM

ffmpeg version N-92043-g0f36ad514c Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 8.2.1 (GCC) 20180813

  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth

  libavutil      56. 19.101 / 56. 19.101

  libavcodec     58. 31.100 / 58. 31.100

  libavformat    58. 18.102 / 58. 18.102

  libavdevice    58.  4.104 / 58.  4.104

  libavfilter     7. 32.100 /  7. 32.100

  libswscale      5.  2.100 /  5.  2.100

  libswresample   3.  2.100 /  3.  2.100

  libpostproc    55.  2.100 / 55.  2.100

[wav @ 000001c78f59a440] Estimating duration from bitrate, this may be inaccurate

Input #0, wav, from 'Robinson.wav':

  Duration: 00:07:48.95, bitrate: 5 kb/s

    Stream #0:0: Audio: g723_1 ([0][161][0][0] / 0xA100), 8000 Hz, mono, s16, 5 kb/s

[NULL @ 000001c78f5ad540] Unable to find a suitable output format for 'g723.1'

g723.1: Invalid argument

Kirk Calabrese, MA,CMT, Network+ Certified Professional

IT Consultant

-----Original Message-----

From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of Paul B Mahol

Sent: Monday, September 24, 2018 9:02 AM

To: FFmpeg user questions <ffmpeg-user at ffmpeg.org>

Subject: Re: [FFmpeg-user] G723.1 conversion to PCM

On 9/24/18, esikcalabrese at verizon.net <esikcalabrese at verizon.net> wrote:

> Hello users group:

> 

> 

> 

> Two commands fail to convert G723.1 to PCM.  I have Verint software 

> which is currently converting these files; however, issue is I need to 

> be able to convert from a different server and don't have their 

> software.  Can anyone assist?

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> Kirk Calabrese, MA,CMT, Network+ Certified Professional

> 

> IT Consultant

First update your ffmpeg version, it is extremly old.

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