How to handle the input audio and output it in real time? about libllsm2 HOT 4 CLOSED

libllsm2 does not support real-time analysis. The complexity of signal analysis algorithm makes it extremely difficult to run real-time (and even more so when low latency is desired).
You may find general-purpose sound processing libraries such as Rubberband and SoundTouch useful (although at lower quality).

from libllsm2.

libllsm2 does not support real-time analysis. The complexity of signal analysis algorithm makes it extremely difficult to run real-time (and even more so when low latency is desired).
You may find general-purpose sound processing libraries such as Rubberband and SoundTouch useful (although at lower quality).

@Sleepwalking
Thanks for your replay~
I would like to change voice's timbre sound like another natual human's voice real time.
I have tried libllsm2 and world vocoder, the f0 estimation cost too much time.
Just change formant without f0 estimation can be work? Did you have some idea about this?
Thank you~!

from libllsm2.

Just change formant without f0 estimation can be work?

Unfortunately even formant modification alone requires F0 estimation to be done in the first place (if libllsm were to be used). However, if your application does not involve pitch or time-scale modification, libllsm would be an overkill. A real-time implementation of STFT or linear predictive filter should suffice, and that will be a much simpler solution.

from libllsm2.

Just change formant without f0 estimation can be work?

Unfortunately even formant modification alone requires F0 estimation to be done in the first place (if libllsm were to be used). However, if your application does not involve pitch or time-scale modification, libllsm would be an overkill. A real-time implementation of STFT or linear predictive filter should suffice, and that will be a much simpler solution.

Thank you for your reply,
Change formant in my audio stream without pitch changed is also my target too.
Could you show me more details about this? I am a new starter about this.
@Sleepwalking

from libllsm2.