First, "nihongo" means Japanese in Japanese. "Sou Matome" might be a specific course or series. I recall that there are several Japanese learning resources with similar names, like "Sou Matome Nihongo Kyoushitsu" or something like that. Maybe "Sou Matome" is a well-known series? I should check if that's the case.
"N4" refers to the Level 4 of the Japanese Language Proficiency Test (JLPT), which is a basic proficiency level. The user is looking for audio content related to N4 level in the Sou Matome series. "Audio download portable" suggests they want downloadable audio that they can take with them, like for on-the-go study, perhaps in a portable format like MP3. nihongo sou matome n4 audio download portable
However, if the audio is part of a subscription service or a paid download, the user must have the proper access to download it. I need to clarify that the audio should be legally obtained and not shared or downloaded from unauthorized sources. First, "nihongo" means Japanese in Japanese
Another angle is that some books come with online access codes for audio. The user might have purchased a physical copy and now wants to extract the audio for easier portability. In that case, instructions on using software to convert CD audio to MP3 or transferring digital files to a portable player could be useful. Maybe "Sou Matome" is a well-known series
