sndfile-deinterleave: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/sndfile-deinterleave - from package: sndfile-programs

You may install the required package with command apt-get install {package}

Error in other languages:
sndfile-deinterleave: bevel nie gevind nie
sndfile-deinterleave: comandă negăsită
sndfile-deinterleave: comando não encontrado
sndfile-deinterleave: commande introuvable
sndfile-deinterleave: command not found
sndfile-deinterleave: käsku ei ole
sndfile-deinterleave: không tìm thấy lệnh
sndfile-deinterleave: komanda nerasta
sndfile-deinterleave: Kommando nicht gefunden.
sndfile-deinterleave: kommandot finns inte
sndfile-deinterleave: komut yok
sndfile-deinterleave: nie znaleziono polecenia
sndfile-deinterleave: níor aimsíodh an t-ordú
sndfile-deinterleave: no se encontró la orden
sndfile-deinterleave: no s'ha trobat l'ordre
sndfile-deinterleave: opdracht niet gevonden
sndfile-deinterleave: parancs nem található
sndfile-deinterleave: perintah tidak ditemukan
sndfile-deinterleave: príkaz nenájdený
sndfile-deinterleave: příkaz nenalezen
sndfile-deinterleave: команда не найдена
sndfile-deinterleave: командата не е открита
sndfile-deinterleave: 命令找不到
sndfile-deinterleave: コマンドが見つかりません