Vorbis 1.3.7 aoTuV and Lancer patches

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Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #75 – 2024-04-16 20:35:39

There is something wrong about Lancer mod 2021-05-11 hosted on RareWares. It is unable to correctly encode WAV when its sampling rate is less or equal to 11025 Hz: SSE2 version outputs silence, SSE3 outputs heavily distorted sound. All other Vorbis encoders (original, Aotuv, Venc aka Aotuv 2021-03-20, FFMPEG's libvorbis) do the job as expected.

P.S. Also, Lancer mod section on the website is missing its own anchor, <a name="oggenc-aotuv"> is used instead.

Code: [Select]

$ mediainfo in.wav

General
Complete name                            : in.wav
Format                                   : Wave
Format settings                          : PcmWaveformat
File size                                : 361 KiB
Duration                                 : 16 s 780 ms
Overall bit rate mode                    : Constant
Overall bit rate                         : 176 kb/s

Audio
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 16 s 780 ms
Bit rate mode                            : Constant
Bit rate                                 : 176.4 kb/s
Channel(s)                               : 1 channel
Sampling rate                            : 11.025 kHz
Bit depth                                : 16 bits
Stream size                              : 361 KiB (100%)


$ oggenc2 in.wav -q 1 out.ogg


  Bytes    Filename                  
 -------- -------------------------- 
  46 825   out.original.generic.ogg  
  51 187   out.original.x64.ogg      
  51 301   out.ffmpeg7.x64.ogg       
  51 301   out.ffmpeg7.x86.ogg       
  52 409   out.aotuv.generic.ogg     
  55 291   out.lancer.sse3.ogg       
  56 562   out.aotuv.x64.ogg         
  56 655   out.lancer.sse2.ogg       
  56 670   out.venc.x64.ogg          
  56 674   out.venc.x86.ogg

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #76 – 2024-04-17 15:13:31

I'm having trouble making any progress with this. 'in.flac' does not play in foobar with the following error message:

Code: [Select]

Unrecoverable playback error: Unsupported stream format: 11025 Hz / 24-bit / 1 channels (0x4)

Yet, if I look at the Properties in foobar, it specifies 16 bit! I can encode the flac file with any of the oggenc2 variants (Windows 10 Pro x64) and the same situation exists - same error message, but properties appear correct. Decoding the flac to wav doesn't help either. Any ideas, anyone?

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #77 – 2024-04-17 16:19:20

Sounds like you are using an exclusive mode output in foobar2000. The output bitdepth is user configurable, yours is set to 24 bps. And the error is caused by the audio interface not supporting 11 kHz playback natively.
If you wish to keep using exclusive mode, you'll need to add a resampler DSP to the playback chain. Another solution would be to switch to non-exclusive output.

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #78 – 2024-04-17 17:02:12

Thanks, Case, you're right, of course! I'm off to Spain for 2 weeks tomorrow so my mind is elsewhere!! I don't think I will get to look at this until I return so please feel free to remind me if I should appear to have forgotten about it.

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #79 – 2024-04-18 11:11:20

Quick update. I believe the RareWares builds are slightly out-of-date. I found more recent source that appears to fix a bug relating to low samplerates. I'll look at this in more depth when I am able. The broadband connection where I am visiting in Spain is slow and intermittent!

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #80 – 2024-04-19 22:08:17

The follow-up question related to my bug report about Lancer mod hosted on RareWares.

I am confused by the size of out.original.generic.ogg (46 825 bytes). It was produced by Oggenc2.88 hosted on RareWares as well. Of course, different builds may have different relations with mathematics (the notorious floating point), which I have witnessed more than once during the ongoing revival of Helix MP3 encoder. But is it okay to get the difference of 5 kilobytes between the results of x86 and x64 builds of the same audio encoder codebase?

To compare: the difference between the results of Aoyumi own builds (so-called Venc) is only 4 bytes, the difference between the results of reference Vorbis builds (not presented in the table above) compiled by Chocobo is 2 bytes, and there is no difference at all between the results of FFMPEG x86 and x64 (builds by AnimMouse and Nanake).

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #81 – 2024-04-20 07:27:37

I'll look at these matters upon my return, so after May 2. I am currently visiting friends and having to tether to my phone and use mobile data - not ideal. By all means add anything else you come across and I'll research it on my return.

Re: Vorbis 1.3.7 aoTuV and Lancer patches

Reply #82 – 2024-05-07 12:47:59

It would appear that this is due to the Intel compiler, VS compiles do not exhibit this problem. I will replace the compiles on RareWares over the next day, or so. It's probably time to retire all the outdated Intel compiles. It may take a few days, but I'll look to replace all such compiles.

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