258567 2023-06-27 07:09:46 -0700 REGRESSION (Safari 16.x?): MediaRecorder ondataavailable outputs Blobs with size:0 type:"" 2023-07-18 08:52:55 -0700 1 1 1 Unclassified WebKit Media Safari 16 Mac (Apple Silicon) macOS 13 RESOLVED FIXED InRadar P2 Blocker --- 1 omerokcuoglu youennf chrisguttandin eric.carlson jer.noble webkit-bug-importer youennf oldest_to_newest 1963797 0 466831 omerokcuoglu 2023-06-27 07:09:46 -0700 Created attachment 466831 Example js file to test bug. Hi, MediaRecorder ondataavailable outputs Blobs with size:0 type:"" This issue is introduced with Safari 16. I can not pin point the version. MediaRecorder works flawlessly with Safari 15 on Intel and in any other browser. Problem is consistent with both of these streams: 1- audioContext.createMediaStreamDestination 2- navigator.mediaDevices.getUserMedia({ audio: true }) I am attaching a js file for you to test. It only requires you to insert a button in your html. It will output ondataavailable Blobs every second upon click. 1963826 1 webkit-bug-importer 2023-06-27 08:49:13 -0700 <rdar://problem/111393489> 1963894 2 omerokcuoglu 2023-06-27 14:45:52 -0700 iPadOS webkit seems to be working as expected; so this seems to be an osX Safari specific issue. Made the following test via using StreamDestination, triggering sounds during recording. If no sound is played following the initial playback; 1) Chrome reports a consistent Blob size of 238, each second. 2) Firefox reports a Blob size of 0 that spikes at 1047 in every 3-4 seconds. 3) iPad test is done within "Koder App". Assuming it uses webkit, it reports fluctuating Blob sizes of 0 - 604 - 1148 - 544 - 1208. Seems to be the least stable. Perhaps this report does not effect the recorded audio output, I was simply checking the signal flow for this test. Also during sound playback, block size is reported as 0 many times. 1964423 3 youennf 2023-06-30 01:53:19 -0700 Here is a jsfiddle that should show the issue: https://jsfiddle.net/m80q97yn/ @Omer, can you confirm you are able to reproduce this issue? Which platform do you have issues with? Testing locally on my macStudio, it seems to work fine. 1964432 4 omerokcuoglu 2023-06-30 02:23:31 -0700 @Youenn issue is still the same. Blob return is 0. Below is the output until I hit stop: starting mimeType: audio/mp4 data captured size: 0 data captured size: 0 data captured size: 0 data captured size: 0 data captured size: 0 captured: NaN I am on Hardware: m1 Pro Macbook Pro 16" osX: Ventura 13.4.1 Safari: 16.4 https://jsfiddle.net/m80q97yn/ works fine on iOS. If I recall correctly, I did not experience this issue with Safari 16.2. 1964435 5 omerokcuoglu 2023-06-30 02:30:13 -0700 Edit: using Safari version 16.5.1 1964437 6 youennf 2023-06-30 02:34:29 -0700 (In reply to Omer Okcuoglu from comment #4) > @Youenn issue is still the same. Blob return is 0. > > Below is the output until I hit stop: > > starting > mimeType: audio/mp4 > data captured size: 0 > data captured size: 0 > data captured size: 0 > data captured size: 0 > data captured size: 0 > captured: NaN > > I am on > Hardware: m1 Pro Macbook Pro 16" > osX: Ventura 13.4.1 > Safari: 16.4 > > https://jsfiddle.net/m80q97yn/ works fine on iOS. > > If I recall correctly, I did not experience this issue with Safari 16.2. Can you try on latest Safari Tech Preview. I am not able to reproduce on my macBookPro, but Sonoma... 1964439 7 omerokcuoglu 2023-06-30 02:40:21 -0700 Problem continues with Safari Tech Preview version 173. I will try your link in an Apple Store that are likely to have m2 macbook pros with Ventura with whatever Safari version they have. 1964669 8 omerokcuoglu 2023-07-01 23:51:33 -0700 Problem solved! It is about the system Sampling Rate. Mine was set to 96kHz and switching back to 48kHz has made the MediaRecorder stream working again as expected. Apparently this also solves my other previously submitted bug: https://bugs.webkit.org/show_bug.cgi?id=249970 With Safari 16.4 these pops started to happen more often rather than just the initial pops. Keeping sample rate at 48kHz has eliminated the pops too! 1965107 9 youennf 2023-07-05 06:23:43 -0700 The issue is that we are not able to create a AudioConverterNew: 2023-06-30 12:46:29.299606+0300 0x364661 Error 0x0 57221 com.apple.WebKit.GPU: (WebCore) [com.apple.WebKit:MediaStream] AudioSampleBufferCompressor AudioConverterNew failed with 1718449215 I tried switching to 96KHz on my setup and media recorder works for me. Maybe OS support is different. @Omer, how did you change to 96KHz and back to 48KHz? 1965303 10 omerokcuoglu 2023-07-06 04:47:53 -0700 Once I set the Sampling Rate on Audio MIDI Setup from 96k to 48k and vice versa; I reload the page. Then the 48k works and 96k does not work. If I change the sampling rate and not reload the page, the MediaRecorder keeps its respective behaviour. My OS is 13.4.1 Safari: 16.5.1 1965824 11 omerokcuoglu 2023-07-09 01:57:41 -0700 I can add one more note which might be important. The sampling rate change in Audio/MIDI setup needs be made on Audio Output like MacbookPro Speakers. Interestingly changing Sampling rate on Microphone Input has no effect. System Output sampling rate determines whether it works or not. I have checked this problem and same approach with Intel Macbook Pro on Safari 15 and managed to reproduce the problem. 1967015 12 youennf 2023-07-17 01:56:53 -0700 Pull request: https://github.com/WebKit/WebKit/pull/15880 1967188 13 ews-feeder 2023-07-18 08:52:52 -0700 Committed 266130@main (8c01a9fbfd35): <https://commits.webkit.org/266130@main> Reviewed commits have been landed. Closing PR #15880 and removing active labels. 466831 2023-06-27 07:09:46 -0700 2023-06-27 07:09:46 -0700 Example js file to test bug. testRecorder_mic.js application/x-javascript 1301 omerokcuoglu InVzZSBzdHJpY3QiOwoKCmxldCBhdWRpb0NhcHR1cmVEZXN0aW5hdGlvbjsKbGV0IG1lZGlhUmVj b3JkZXI7CmxldCBjYXB0dXJlZERhdGEgPSBbXTsKCgovLy0tLSAxIC0tLSBBZGQgdGhlIGZvbGxv d2luZyByZWNvcmQgYnV0dG9uIGluIHlvdXIgaHRtbDogPGJ1dHRvbiBuYW1lPSJyZWNvcmQiIHR5 cGU9ImJ1dHRvbiI+UmVjb3JkPC9idXR0b24+CgoKCmxldCByZWNvcmRCdXR0b24gPSBkb2N1bWVu dC5xdWVyeVNlbGVjdG9yKCdidXR0b25bbmFtZT0icmVjb3JkIl0nKTsKCQpsZXQgcmVjb3JkU3Rh dGUgPSBmYWxzZTsKCnJlY29yZEJ1dHRvbi5hZGRFdmVudExpc3RlbmVyKCdjbGljaycsIGFzeW5j IGZ1bmN0aW9uKGV2ZW50KSB7CgkKCWlmICghcmVjb3JkU3RhdGUpIHsKCQkKCQlhdWRpb0NhcHR1 cmVEZXN0aW5hdGlvbiA9IGF3YWl0IG5hdmlnYXRvci5tZWRpYURldmljZXMuZ2V0VXNlck1lZGlh KHsgYXVkaW86IHRydWUgfSk7CgoJCW1lZGlhUmVjb3JkZXIgPSBuZXcgTWVkaWFSZWNvcmRlcihh dWRpb0NhcHR1cmVEZXN0aW5hdGlvbik7CgkJCgkJbWVkaWFSZWNvcmRlci5vbmRhdGFhdmFpbGFi bGUgPSAoZXZlbnQpID0+IHsKCSAgIAoJCSAgIGNvbnNvbGUubG9nKCJkYXRhIGF2YWlsYWJsZSBk dXJpbmcgcmVjb3JkOiAiLCBldmVudC5kYXRhKTsKCQkgICAKCSAgICAgICBpZiAoZXZlbnQuZGF0 YS5zaXplID4gMCkgewoJCSAgIAkgY2FwdHVyZWREYXRhLnB1c2goZXZlbnQuZGF0YSk7CgkJICAg CSBjb25zb2xlLmxvZygnZGF0YSBjYXB0dXJlZDogJywgIGNhcHR1cmVkRGF0YSk7CgkJICAgfQoJ ICAgICAgICAgICAKCQoJICAgIH0KCSAgICAKCSAgICAgbWVkaWFSZWNvcmRlci5vbnN0YXJ0ID0g ZnVuY3Rpb24gKCkgewoJCSAJY29uc29sZS5sb2coIm1pbWVUeXBlOiAiLCBtZWRpYVJlY29yZGVy Lm1pbWVUeXBlKTsKCQkgCQoJCSB9OwoJICAgIAoJICAgIG1lZGlhUmVjb3JkZXIub25zdG9wID0g ZnVuY3Rpb24gKCkgewoJCQlpZiAoIWNhcHR1cmVkRGF0YS5sZW5ndGgpIHsKCQkJCWNvbnNvbGUu bG9nKCdObyBEYXRhOiAnLCBjYXB0dXJlZERhdGEpOwoJCQkJcmV0dXJuOwoJCQl9CgkJCQoJCQlj b25zb2xlLmxvZygnY2FwdHVyZWQ6ICcsIG5ldyBCbG9iKGNhcHR1cmVkRGF0YSwge3R5cGU6IG1l ZGlhUmVjb3JkZXIubWltZVR5cGV9KSk7CgkJCQoJCX07CgkJCgkJcmVjb3JkU3RhdGUgPSB0cnVl OwoJCW1lZGlhUmVjb3JkZXIuc3RhcnQoMTAwMCk7CgkJCgl9IGVsc2UgewoJCW1lZGlhUmVjb3Jk ZXIuc3RvcCgpOwoJCXJlY29yZFN0YXRlID0gZmFsc2U7Cgl9CgkKCQp9KTsKCgo=