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Fixed
Fixed in 2023.2.0a23
Votes
11
Found in
2021.3.3f1
2022.1.1f1
2022.2.0a13
Issue ID
UUM-2396
Regression
No
AudioClip Length is twice the size when by using UnityWebRequestMultimedia.GetAudioClip from Firebase Storage
How to reproduce:
1. Open the attached project's Scene labeled "SampleScene"
2. Enter the Play Mode
3. Inspect the Console Window
Expected result: AudioClip size downloaded from Firebase is similar to other sources
Actual result: AudioClip size is double compared to other sources
Reproducible with: 2018.4.36f1, 2019.4.27f1, 2020.3.9f1, 2021.1.8f1, 2021.2.0a17
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wechat_os_Qy04MgUep58p-beA8MNP3yJVs
Jul 17, 2023 09:02
在不更新版本的前提下，有规避该bug的方式吗
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SeventhString
May 29, 2023 14:02
We got a fix for this, just pushing in through the grinder to land it in the latest version, then we'll get to work on backports.
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yusuf_unity70
May 26, 2023 15:13
Any updated? @unity-team
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Chris-V
Apr 13, 2023 21:47
I'm also seeing this issue in 2021.3.19f1. From what I can tell it seems to be a function of the sampling rate of the source audio file. The length seems to be correct if the source is 44KHz, but doubled if the source is 22KHz. Presumably other sampling rates will produce other incorrectness factors. Haven't tested extensively so could be wrong about this. I am seeing this when using DownloadHandlerAudioClip.GetContent with mp3 files. Does the download handler make assumptions about the sampling rate?
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NAKAS
Sep 28, 2022 22:14
Hey just reporting about a similar issue I have been running into when I create a clip with samples that I pulled from a unity video using the audio sample provider in the experimental audio section.
I get the samples from the audio thread and then create an audio clip with provider.channelcount (in my case it's a stereo clip) the clip that gets created is twice as long as the audio samples and has blank audio in the second half of the clip after AudioClip.setdata. It seems like a slightly different scenario but the AudioClip being created twice as long issue seems the same and related.
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ickydime
Jul 25, 2022 18:15
Linking back to this thread for anyone to discuss workarounds as its been over a year now since reported:
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DaveA_VR
Jun 11, 2022 00:28
In 2021.3.0f I'm seeing length 0. AudioClip is invalid. I am not using FIrebase, just UnityWebRequestMultimedia.GetAudioClip
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GoDJOHN
Jul 21, 2021 23:13
When trying to recreate waveform, the double count of samples makes so difficult to handle the amount of data in order to get left and right channel on interlaced audio.
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Resolution Note (fix version 2023.2.0a23):
MPEG codec length estimation was improved by averaging frame sizes of the first 100 frames instead of looking at only the first one.