Preferred uploading Bit Rate/Depth

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Preferred uploading Bit Rate/Depth

dadmagnet
Casual Listener

Will Spotify distort a track, or have a track suffer volume-loss in comparison to other audio on the streaming service if it is uploaded at 24bit/96khz?

 

The preference for most aggregators seems to be 16/44.1khz. However, I have masters of an album in 24/96. Any info on how spotify works with rate/depth in conjunction with uploading would be a huge help.

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Re: Preferred uploading Bit Rate/Depth

MattSuda
Community Legend

I don't think it would end up distorted. Spotify gets all different types of audio files sent to them from professional record labels all the way to independent artists.

 

Spotify usually stores the lossless file that is sent to them and then from that file they also create different compressed versions with different bitrates for streaming.

 

For example, DistroKid says 24bit/96khz is fine to upload:

https://distrokid.desk.com/customer/en/portal/articles/1283121-what-audio-file-formats-can-i-upload-

 

It also depends on how the distributor sends over the audio files. If they convert them to 16 bit on upload or send them as uploaded. If you require more info I would suggest contacting your distributor.

 

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Re: Preferred uploading Bit Rate/Depth

MattSuda
Community Legend

I don't think it would end up distorted. Spotify gets all different types of audio files sent to them from professional record labels all the way to independent artists.

 

Spotify usually stores the lossless file that is sent to them and then from that file they also create different compressed versions with different bitrates for streaming.

 

For example, DistroKid says 24bit/96khz is fine to upload:

https://distrokid.desk.com/customer/en/portal/articles/1283121-what-audio-file-formats-can-i-upload-

 

It also depends on how the distributor sends over the audio files. If they convert them to 16 bit on upload or send them as uploaded. If you require more info I would suggest contacting your distributor.

 

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Re: Preferred uploading Bit Rate/Depth

HenrikStevn
Gig Goer

As long as what you send is at least CD-quality, it doesn't make a difference for Spotify, everything will be treated equally.

 

The codec they use (Ogg Vorbis) is a lossy codec (it's like MP3, but better), so it doesn't have a bit depth as such, so no matter which input, it will get the bit depth (or bitrate) it needs, it doesn't matter if it starts out as 16 bit or 24 bit.

 

Everything will also be resampled to 44.1kHz, because the whole point of a lossy codec is to remove everything the human ear can't hear anyway, including ultrasonic frequencies.

 

Spotify is using the same converter and encoder chains that you can download and use on your own PC, and they all handle CD-quality or higher perfectly fine 🙂

 

In regards to the volume level, it is much more important to master your tracks with proper dynamics (ie. don't squash them with dynamic compression) and to aim for an average level of -14 LUFS (your DAW or audio software should be able to tell you the level).

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