Skip to main content ↑ ↓

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: Band limited linear interpolation (Read 6844 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Band limited linear interpolation

I'm looking for some information to help me craft an implementation of band limited slopes in C. Maybe it would even help if someone could point out how to do this in pseudo code.

I've heard that it could be considered an excellent form of sound interpolation for things such as sample based synthesis, but I have yet to find any examples of it that even resemble code. Basically, something that synthesizes band limited slopes in a fashion that does not require super sampling, if that is at all possible.

The results will be integrated into my single file resampler library, and implemented into the DUMB and modplay libraries. Plus, it could give reference for other implementations out there, assuming the whole idea is even worth its salt.

Band limited linear interpolation

Reply #1 –
Quote from: kode54 on
I'm looking for some information to help me craft an implementation of band limited slopes in C. Maybe it would even help if someone could point out how to do this in pseudo code.

I've heard that it could be considered an excellent form of sound interpolation for things such as sample based synthesis, but I have yet to find any examples of it that even resemble code. Basically, something that synthesizes band limited slopes in a fashion that does not require super sampling, if that is at all possible.

The results will be integrated into my single file resampler library, and implemented into the DUMB and modplay libraries. Plus, it could give reference for other implementations out there, assuming the whole idea is even worth its salt.



A band limited slope? That's just frequency shaping, bandlimiting, and inverse frequency shaping. I'm not quite understanding what you're asking for here.
-----
J. D. (jj) Johnston

Band limited linear interpolation

Reply #2 –
Quote from: kode54 on
I'm looking for some information to help me craft an implementation of band limited slopes in C. Maybe it would even help if someone could point out how to do this in pseudo code.

I've heard that it could be considered an excellent form of sound interpolation for things such as sample based synthesis, but I have yet to find any examples of it that even resemble code. Basically, something that synthesizes band limited slopes in a fashion that does not require super sampling, if that is at all possible.

The results will be integrated into my single file resampler library, and implemented into the DUMB and modplay libraries. Plus, it could give reference for other implementations out there, assuming the whole idea is even worth its salt.


I don´t know if is still of interest, but well worth a look are Julian Smith´s pages:
Digital Audio Resampling Home Page