Is it permissible to work on a programming project that assists in reading and recording sound within a digital sound level meter?

The digital receiver (satellite receiver) is a double-edged sword. If the offer to provide a program that helps with audio recording and playback within the device comes from a party known to use it for legitimate purposes, such as lectures and scientific programs, then there is no objection to preparing it. However, if it is known that they will use it for impermissible purposes, then it is forbidden to prepare it for them. If the situation is unknown, the ruling is based on what is most common: if the majority of the people in the country use it for good, it is permissible; but if their use of it for evil predominates, it is forbidden. If the requesting party is from the country from which the question originated, it is likely that the program will be used for evil, and therefore, it is not permissible to prepare it.