986f493812
Previously in Audaspace there was choice between linear resampler (okay for preview, but not great for final mix), or "extremely high quality preset" for rendering the final mix; with nothing in between. I have just landed "medium" and "low" resampler quality levels in upstream Audaspace (see https://github.com/audaspace/audaspace/pull/18 with details and quality spectograms, also comparison with Audacity resampler). This PR updates Audaspace to latest upstream, and switches to use the newly added "medium" quality resampler. There's no audible difference (nor visible one in spectrograms), as far as I can tell. Timings, rendering out frames 1000-3000 of Sprite Fright Edit blender studio data set: - Windows (Ryzen 5950X, VS2022): 92 -> 73 sec - Mac (M1 Max, clang 15): 70 -> 62 sec i.e. using a faster audio resampler makes the _whole render process_ be 10-20% faster (however, this from VSE where it combines already pre-rendered image strips). Pull Request: https://projects.blender.org/blender/blender/pulls/116059 |
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README.md
audaspace
Audaspace (pronounced "outer space") is a high level audio library written in C++ with language bindings for Python for example. It started out as the audio engine of the 3D modelling application Blender and is now released as a standalone library.
Documentation and Community
The documentation including guides for building and installing, demos, tutorials as well as the API reference for C++, C and python can be found on https://audaspace.github.io.
Bug reports and feature requests should go to the issue tracker.
For any other discussions about audaspace there is a mailing list and there is also the IRC channel #audaspace on irc.freenode.net.
Features
The following (probably incomplete) features are supported by audaspace:
- input/output devices
- input from microphones, line in, etc.
- output devices including 3D audio support
- file reading/writing
- filters like low-/highpass and effects like delay, reverse or fading
- generators for simple waveforms like silence, sine and triangle
- respecification - this term is used for changing stream parameters which are
- channel count - channel remapping
- sample format - the library internally uses 32 bit floats
- sample rate - resampling
- simple (superposition, joining and ping-pong aka forward-reverse) and more complex (non-linear audio editing) sequencing of sounds
License
Copyright © 2009-2023 Jörg Müller. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.