soundtoh: 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 CentOS possible default full paths are:

/usr/bin/soundtoh - from package: nas

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/soundtoh - from package: nas-bin

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

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