srconv: 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/srconv - from package: csound-utils

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

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