![]() ![]() No installation is required.ĭownload beta = It could be a Beta, RC(Release Candidate) or an Alpha / Nightly / Unstable version of the software.ĭownload 15MB = A direct link to the software download. Portable version = A portable/standalone version is available. Free Trial version available for download and testing with usually a time limit or limited functions. Trialware = Also called shareware or demo. It may be disabled when installing or after installation. Free software Ads = Free Download software and open source code but supported by advertising, usually with a included browser toolbar. Freeware Ads = Download Free software but supported by advertising, usually with a included browser toolbar. Free software Trialware = Download Free software and also open source code but some parts are trial/shareware. ![]() Free software = Download Free software and also open source code also known as FOSS (Free and Open Source Software). Freeware Trialware = Download Free software but some parts are trial/shareware. RECENTLY UPDATED = The software has been updated the last 31 days. NO LONGER DEVELOPED = The software hasn't been updated in over 5 years. Type and download NO MORE UPDATES? = The software hasn't been updated in over 2 years. Version number / Beta version number / Update version number and when it whas released. ![]() specification), when the actual problem lies in one specific broken/outdated/incomplete software implementation of that format.Explanation: NEW SOFTWARE= New tool since your last visit NEW VERSION= New version since your last visit NEW REVIEW= New review since your last visit NEW VERSION= New version Latest version And it obviously must be able to deal with that fact.Ĭonsequently you must not blame the container format (i.e. Software that does supports HE-AAC must be aware that the final decoded + post-processed output sample-rate may be different from the "base" rate. That is exactly the sample rate that a Non-HE-capable AAC decoder would return. Hence it only specifies the the file format, but it does not specify how the software that reads the file has to behave.įor HE-AAC it makes sense to specify the "base" (not re-upconverted) sample-rate as the stream's sample-rate in the AVI header. VFW is outdated/discontinued, as we all know.Īt the same time AVI is only a container format. But VFW is only one (out of many) specific software implementation to read AVI files. If the AVI audio header declares that the sample rate is 22050 Hz (as this one does), then that is indeed what you will hear. I have no control over the sample rate in an AVI file. (Have a look at "MP3-VBR-in-AVI is a dirty hack" and "AAC in AVI does not work") Whether the AAC decoder, which will be used to decompress the AAC data later, does support HE-AAC (SBR) or not, that is a completely different and AVI-unrelated question. Only some buggy AVI splitters don't handle it properly, because they make the (false) assumption that audio streams will always use fixed-size samples. Audio streams with varying sample size work just fine with AVI - if done in the right way. Still that is a property of the AAC format and is not related to AVI at all. When using an HE-AAC-capable decoder, the output will be upsampled to the original sample rate and the "missing" frequencies will be synthesized. And indeed it will divide the the sampling rate by 2 (and thus "remove" the higher frequencies according to Nyquist Theorem).Īs a result, you will get only 1/2 sampling rate (and thus worse quality) compared to the original, when using an AAC decoder that does not support HE-AAC (SBR). SBR is pre-processing before the actual AAC encoding step. Actually SBR can be applied to MP3 just as well (known as "MP3pro"). The format of the resulting AAC stream is no different. ![]()
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