I recorded an audio utilizing audacity, then elevated its quantity 10 instances utilizing ffmpeg. When I’m sending this audio as attachment to my pals to check, then individuals with older i-phones are capable of hear it positive (quantity remains to be low although), however individuals on i-phones 14 and better are usually not listening to my voice within the mp3 in any respect.
Really, on Apple 14 and better, my voice is there in audio, however its so low in quantity that its virtually inaudible, unimaginable to listen to. I can hear it if I pressure actually actually lots. Different issues on the cellphone are taking part in positive, audio settings are exhibiting full.
If I add a background music to the audio utilizing ffmpeg, then individuals on i-phones 14 and better are solely listening to the music, not my voice.
What is going on right here?
Edit: That is actually a ffmpeg difficulty. I elevated quantity in enter file utilizing audacity and tried taking part in the brand new file on Apple 14, it has considerably increased quantity, can hear myself somewhat however nonetheless not a lot. In any case, no matter audacity did to extend quantity, that labored, and no matter ffmpeg is doing with my beneath command, its not working in any respect.
Do I would like to regulate some frequency and so on settings within the recorded audio when utilizing ffmpeg to extend the amount?
Right here is the ffmpeg command I’m utilizing to extend quantity in my recorded audio. Output mp3 file from beneath command is uploaded right here:
https://tbrjar.com/audio_test/z1.mp3
and here is the unique enter file as recorded by audacity:
https://tbrjar.com/audio_test/enter.mp3
ffmpeg command and output:
ffmpeg -ss 00:00:00 -i enter.mp3 -to 00:00:05 -filter:a "quantity=10" -c:a libmp3lame z1.mp3
ffmpeg model 2024-03-04-git-e30369bc1c-full_build-www.gyan.dev Copyright (c) 2
000-2024 the FFmpeg builders
constructed with gcc 13.2.0 (Rev5, Constructed by MSYS2 undertaking)
configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkg
conf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-icon
v --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --e
nable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh -
-enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sd
l2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdav
s2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --en
able-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvi
d --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-
mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-li
bfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-l
ibvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-
ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable
-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl
--enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enabl
e-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --e
nable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --e
nable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --ena
ble-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmys
ofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 58. 40.100 / 58. 40.100
libavcodec 60. 41.100 / 60. 41.100
libavformat 60. 23.100 / 60. 23.100
libavdevice 60. 4.100 / 60. 4.100
libavfilter 9. 17.100 / 9. 17.100
libswscale 7. 6.100 / 7. 6.100
libswresample 4. 14.100 / 4. 14.100
libpostproc 57. 4.100 / 57. 4.100
Enter #0, mp3, from 'luck1.mp3':
Period: 00:00:54.02, begin: 0.025057, bitrate: 133 kb/s
Stream #0:0: Audio: mp3 (mp3float), 44100 Hz, stereo, fltp, 133 kb/s
Metadata:
encoder : LAME3.100
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (mp3float) -> mp3 (libmp3lame))
Press [q] to cease, [?] for assist
Output #0, mp3, to 'z1.mp3':
Metadata:
TSSE : Lavf60.23.100
Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp
Metadata:
encoder : Lavc60.41.100 libmp3lame
[out#0/mp3 @ 00000000001a7340] video:0KiB audio:79KiB subtitle:0KiB different stream
s:0KiB world headers:0KiB muxing overhead: 0.313639%
dimension= 79KiB time=00:00:05.00 bitrate= 129.5kbits/s pace=18.2x