Re: [FFmpeg-user] Compare quality of 2 audio files

2017-07-02 Thread Rodney Baker
On Sunday, 2 July 2017 0:31:03 ACST Rodolfo Medina wrote: > > > > But suppose you have a song, or any piece of music... a certain > > particular > > precise recording, just that one... and that you find in internet two mp3 > > different files of that song, from two different web sites, both sam

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-07-01 Thread Rodolfo Medina
Rodolfo Medina writes: > Harold Tessmann writes: > >> On Thu, Jun 29, 2017 at 12:37 PM, Moritz Barsnick wrote: >> >>> And unlike video, it seems there are few, if any, methods to measure >>> the *perceived* quality of audio. Check here for some ramblings: >>> https://stackoverflow.com/questions

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-07-01 Thread Rodolfo Medina
Harold Tessmann writes: > On Thu, Jun 29, 2017 at 12:37 PM, Moritz Barsnick wrote: > >> And unlike video, it seems there are few, if any, methods to measure >> the *perceived* quality of audio. Check here for some ramblings: >> https://stackoverflow.com/questions/2945531/determining- >> the-best

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-30 Thread Harold Tessmann
On Thu, Jun 29, 2017 at 12:37 PM, Moritz Barsnick wrote: > And unlike video, it seems there are few, if any, methods to measure > the *perceived* quality of audio. Check here for some ramblings: > https://stackoverflow.com/questions/2945531/determining- > the-best-audio-quality > > But I challang

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-29 Thread Carlos E. R.
On 2017-06-29 14:17, Rodolfo Medina wrote: > With Maik's kind help, I managed to sync the two files I wanted to compare: > within Audacity I had to shift one of the two exactly 34ms to the right. > Then, > after inverting it, by playing them together their difference can be heard. > Now, supposed

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-29 Thread Moritz Barsnick
On Thu, Jun 29, 2017 at 14:29:40 +0200, Nicolas George wrote: > Le primidi 11 messidor, an CCXXV, Rodolfo Medina a écrit : > > Now, supposed one doesn't know, how is it possibile to tell which one of the > > two is best quality and which one is the worst? > > If we had an automated way of detectin

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-29 Thread Nicolas George
Le primidi 11 messidor, an CCXXV, Rodolfo Medina a écrit : > Now, supposed one doesn't know, how is it possibile to tell which one of the > two is best quality and which one is the worst? If we had an automated way of detecting that, life would be much easier for people who invent codecs. You nee

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-29 Thread Rodolfo Medina
With Maik's kind help, I managed to sync the two files I wanted to compare: within Audacity I had to shift one of the two exactly 34ms to the right. Then, after inverting it, by playing them together their difference can be heard. Now, supposed one doesn't know, how is it possibile to tell which o

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-24 Thread Rodolfo Medina
Maik Waschfeld writes: > Hi Rodolfo, > >> Am 24.06.2017 um 13:17 schrieb Rodolfo Medina : >> >> the first >> one is inverted and second isn't. Playing them together is louder than each >> of >> them as `Solo'. > > > Then don’t invert the first one. Same result... I wish I could send the two

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-24 Thread Maik Waschfeld
Hi Rodolfo, > Am 24.06.2017 um 13:17 schrieb Rodolfo Medina : > > the first > one is inverted and second isn't. Playing them together is louder than each > of > them as `Solo'. Then don’t invert the first one. With kindest regards… …Maik Waschfeld __

Re: [FFmpeg-user] Compare quality of 2 audio files

2017-06-24 Thread Rodolfo Medina
Maik Waschfeld writes: >> Am 24.06.2017 um 09:22 schrieb Rodolfo Medina : > […] >> In this case, I import file1.mp3, I invert it, then I import file2.mp3: the >> game does not succeed: what I hear is not the difference between them - as >> it is when file2.mp3 = file1.mp3 -; what I hear seems ra

Re: [FFmpeg-user] Compare quality of 2 audio files (was: Conversion wav -> mp3 -> wav)

2017-06-24 Thread Maik Waschfeld
Hi Rodolfo, Should I have to mention, that it’s not recommended to work on the original files? Copy them within the Finder or your desktop of choice, so Audacity can manipulate the files, as it likes.. > Am 24.06.2017 um 09:22 schrieb Rodolfo Medina : […] > In this case, I import file1.mp3, I

[FFmpeg-user] Compare quality of 2 audio files (was: Conversion wav -> mp3 -> wav)

2017-06-24 Thread Rodolfo Medina
Maik Waschfeld writes: > Hi Rodolfo, > >> but all happens is that they play together now… > > Perfect! > For now. > >> On the first of the two, I applied the `invert’ effect. > > Are you sure? > >> Where’s the comparison…? > > That’s what you hear! If you play two exact files „in sync“, and on