Getting audio into your game requires a few specific steps and some patience with the file requirements.
Roblox has a strict sound pipeline, and it trips people up more often than it should. Here is how you actually get a sound uploaded and working in your place. You need to own the account with Developer Mode enabled, then go to the ROBLOX website, log in, and navigate to Create. There is a Sounds tab where you click Add New Sound. That gives you an upload slot. You pick an audio file from your computer and submit it. The file gets processed by Roblox's servers, which usually takes between 30 seconds and three minutes depending on file size and current server load. Once it uploads, you get a Sound ID number. That is the string of digits you paste into the SoundId property on a Sound instance in Roblox Studio. Set the PlayOnRemove property to false, loop to whatever makes sense for your use case, and Volume to 0.75 or so to avoid clipping. It sounds basic but I see people forgetting the SoundId prefix thing constantly and wondering why their audio won't play.
How To Upload Sound To Roblox: The Practical Version
The file format matters more than most people realize. Roblox accepts MP3, WAV, and OGG files, but OGG is the cleanest option if you want to minimize file size without introducing compression artifacts that sound terrible at lower volumes. A 30-second ambient track in MP3 at 128kbps comes out around 500KB. The same track in WAV could be 5MB, which is fine but unnecessary bloat if you are uploading fifty sounds for a single game. Roblox compresses everything on their end anyway, so high-bitrate source files give you diminishing returns past 192kbps. The upload limit per sound is 20MB, but practically you should aim for under 5MB per file. Anything larger takes noticeably longer to process and occasionally times out on slower connections. I had a client who uploaded a nine-minute ambient track at nearly 18MB and the upload page just hung for twelve minutes before failing silently. He lost the file locally too because he had exported it directly from his DAW and never made a copy. After that, I started keeping a master folder of all exported audio at multiple bitrates before uploading anything. There is a common mistake beginners make around the volume normalization. Roblox applies its own compression and normalization to uploaded audio, which means your perfectly leveled track can come out sounding squashed or unexpectedly quiet. I discovered this the hard way when a friend's horror game had music that was essentially inaudible during gameplay. The fix was to bounce the audio with a +3dB headroom margin and avoid using a limiter on the master bus before export. Raw dynamic range actually translates better through Roblox's compression chain than heavily limited audio does.
Another thing nobody mentions is the cooldown between uploads. If you upload sounds in rapid succession, the system starts throttling you. I ran into this when setting up a game with over sixty ambient tracks and realized I needed to space uploads about two minutes apart or the portal would reject subsequent files with no clear error message. Just a blank upload field and a spinner that never finishes. Waiting two minutes between each batch fixed it completely. If you are managing a large library of audio, the manual upload process becomes unsustainable fast. There is no bulk upload feature built into the platform, so teams typically resort to scripting or using third-party tools to automate the process. The official API does not expose sound upload endpoints, which means any bulk solution is going to be unofficial and carries some risk. I would not recommend it for anything beyond small batches, and even then you are working outside Roblox's intended workflow. The one thing that catches people most often is the licensing side. Uploading something you do not have the rights to use will get the sound removed and can trigger a strike against your account. Roblox moderation on audio is not instant, so a sound might work in your game for weeks before anyone reports it. I once used a royalty-free ambient track that looked legitimate on a stock audio site, and three months later Roblox took it down because the original creator had pulled the track from the distributor. The sound simply stopped playing with no warning to the developer. Always keep records of where your audio came from and verify the license has not been revoked.
Get the Full Details

For most people just getting started, the process is straightforward enough. Export your audio as OGG or MP3, upload through the Create menu, grab the Sound ID, and plug it into Studio. The complications come from file size management, volume normalization, and the quirks of Roblox's processing pipeline. Once you learn those, uploading sound becomes a routine task rather than a guessing game.