speechd-up: command not found

Have You tried accessing the binary with the full path?

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

[root@server ~]# echo $PATH

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/speechd-up - from package: speechd-up

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