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q-p / SoundPusher

Virtual audio device, real-time encoder and SPDIF forwarder for macOS
MIT License
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Produce a similar project for headphone downmix? #2

Closed kode54 closed 7 years ago

kode54 commented 8 years ago

I have compiled some headphone downmix impulses at:

https://github.com/kode54/dh

With this convolver, one could downmix 5.0 (the LFE impulses are null) to stereo, in three space size presets, at various sample rates.

q-p commented 8 years ago

Hmmmmmm. There's already http://hajoheadphone.com that does something along these lines, I think.

Integrating something like this into SoundPusher.app would mean refactoring the output-side of the chain as well as some of the set-up code (e.g. enumerating and selecting the output formats). I personally don't use headphones, but I'm not averse to merging something like this if there's interest.

SoundPusher.app already uses FFmpeg, so if one wanted to do a headphone down mix, I'd either use af_sofalizer (but I currently don't use any FFmpeg filters) or hope that libswresample gains such an ability in its down mix.

q-p commented 7 years ago

I don't think this makes sense to do here (i.e. in SoundPusher.app). Using FFmpeg to do a binaural downmix could happen, but I have no interest in doing that.