Hi. I'm not the author of the Pepsi video, I used it to test my program for extracting audio from an optical track. You can find the original video with a link to the author in the description.
Tengo mi proyector de 35 mm y una colección de trailers y películas en ese formato. Me gusta como era el cine de antes. Así mismo tengo proyectores de formato 16 y 8 mm
I have two of them. SCOPE and FLAT film formats. Soon I will be digitized FLAT. SCOPE will be re-digitized because I have improved the quality of my film scanner
Does the software you made decode the audio track from a digital image or does it decode it straight from the film strip in a scanner (If that makes sense)?
Interesting video. One thing you should know is that there are limited frequency ranges of each movie film sound format. The ranges that I am listing in this comment are the frequency responses of two movie film formats that I have discovered online, which are for 16mm and 35mm. But remember, these are only approximate. Both of the sound formats are mono and optical. 16mm optical sound - 100 hz to 6,500 hz 35mm optical sound - 50 hz to 10,000 hz Although 35mm optical sound has a relatively wide range, it cannot beat the quality of 1/4 inch tape or even high-quality digital. 1/4 inch tape has a frequency response of approximately 20 hz to 16,000 hz whereas high-quality digital is approximately 20 hz to 20,000 hz. Both are good, in my opinion, but digital wins for having the highest frequency peak provided the sample rate is 44,100 hz or even 48,000 hz. It is clear that optical movie film sound is far more limited in its frequency range than that of tape and digital. We must not confuse "sample rate" with "cycle rate" in audio terminology. "Sample rate" is a modern term that only appeared since the dawn of digital sound recording which was around at least the late 1970s. Unlike "cycle rate", "sample rate" contains double the hertz in each second of audio. 44.1kz and 48khz are the most common sample rates that you will see listed for audio files, whether for recording, conversion or even playback. For example, if the sample rate is 44,100 hz, then the cycle rate would be 22,050 hz. The latter is the highest frequency peak you will ever get with an audio file that corresponds to the former. I hope you find my comment interesting since I know plenty about filmmaking and sound production. I'm a filmmaker as well as a sound recordist.
Hi! Thans for such a detailed and extensive comment. It's very helpful. I knew about the frequency responses of the films, but I didn’t know about the cycle rate. In audio processing, I used a sampling frequency of 48 kHz. This simplified processing, although in some places it's redundant I think. When decoding an optical track, I read each frame line by line. One frame - 2000 lines. One line - 1px height. Therefore, each frame should be 2000px high (from top frame border to bottom). But the problem that I have so far is distortion of the sound level, due to the skew in the brightness of the frame gate lighting, from top to bottom. Because of this, cyclical beats in the volume level appear on sounds.
Во всех своих видео декодирую оптический звук прогой, которую сам написал. Но вообще, есть проект AEO-Light, этот софт (бесплатный вроде) можно использовать для декодирования звуковых оптических дорожек различных типов через видеофайл
Are you using AEO-Light2? With cyan tracks you'll get a result with more signal and less noise converting to grayscale first, preferably by combining RGB to make it black.
I know AEO-light gives a great result, but I am doing audio decoding with a program I wrote myself. With a cyan optical track, it is really easier to get a good result - with the right lighting of the film frame, the RED color channel (of the digital image) will contain a contrasting black and white image of the optical track, which is good to decode
forgive me if i hadnt done enough research on this but i think the pepsi commercial here is the highest quality version posted on the internet so far
Hi. I'm not the author of the Pepsi video, I used it to test my program for extracting audio from an optical track. You can find the original video with a link to the author in the description.
Tengo mi proyector de 35 mm y una colección de trailers y películas en ese formato. Me gusta como era el cine de antes. Así mismo tengo proyectores de formato 16 y 8 mm
Hay algo de magia en el cine analógico, ¿no? :)
Brilliant work!
Beautiful! I miss film prints...
I have such feelings. so it's nice to digitize. it's like a sound of vinyl
Génial !!!
0:53 May I know the date of this commercial? Just asking.
I looked it up and everything is hinting towards 2006, i was so curious cause fallon looks the same as he did like 20 years ago 😆
Perhaps the segment of the Pepsi ad, depicts exactly what happens in the human body when a rush of sugar runs through the blood.
😄
Woah you found Dolby digital surround EX City Redux! in 35mm 0:31
I have two of them. SCOPE and FLAT film formats.
Soon I will be digitized FLAT. SCOPE will be re-digitized because I have improved the quality of my film scanner
Does the software you made decode the audio track from a digital image or does it decode it straight from the film strip in a scanner (If that makes sense)?
hi. this audio decoded from scanned digital images
Interesting video.
One thing you should know is that there are limited frequency ranges of each movie film sound format. The ranges that I am listing in this comment are the frequency responses of two movie film formats that I have discovered online, which are for 16mm and 35mm. But remember, these are only approximate. Both of the sound formats are mono and optical.
16mm optical sound - 100 hz to 6,500 hz
35mm optical sound - 50 hz to 10,000 hz
Although 35mm optical sound has a relatively wide range, it cannot beat the quality of 1/4 inch tape or even high-quality digital. 1/4 inch tape has a frequency response of approximately 20 hz to 16,000 hz whereas high-quality digital is approximately 20 hz to 20,000 hz. Both are good, in my opinion, but digital wins for having the highest frequency peak provided the sample rate is 44,100 hz or even 48,000 hz. It is clear that optical movie film sound is far more limited in its frequency range than that of tape and digital.
We must not confuse "sample rate" with "cycle rate" in audio terminology. "Sample rate" is a modern term that only appeared since the dawn of digital sound recording which was around at least the late 1970s. Unlike "cycle rate", "sample rate" contains double the hertz in each second of audio. 44.1kz and 48khz are the most common sample rates that you will see listed for audio files, whether for recording, conversion or even playback. For example, if the sample rate is 44,100 hz, then the cycle rate would be 22,050 hz. The latter is the highest frequency peak you will ever get with an audio file that corresponds to the former.
I hope you find my comment interesting since I know plenty about filmmaking and sound production. I'm a filmmaker as well as a sound recordist.
Hi! Thans for such a detailed and extensive comment. It's very helpful. I knew about the frequency responses of the films, but I didn’t know about the cycle rate.
In audio processing, I used a sampling frequency of 48 kHz. This simplified processing, although in some places it's redundant I think.
When decoding an optical track, I read each frame line by line. One frame - 2000 lines. One line - 1px height. Therefore, each frame should be 2000px high (from top frame border to bottom).
But the problem that I have so far is distortion of the sound level, due to the skew in the brightness of the frame gate lighting, from top to bottom. Because of this, cyclical beats in the volume level appear on sounds.
does anyone think that the guy in the Pepsi clip looks like Jimmy Kimmel?
You mean Jimmy Fallon? And yes, that’s him.
Не подскажешь, а какой программой декодировал?
Во всех своих видео декодирую оптический звук прогой, которую сам написал. Но вообще, есть проект AEO-Light, этот софт (бесплатный вроде) можно использовать для декодирования звуковых оптических дорожек различных типов через видеофайл
@@avborisov Благодарствую! Попробую в скором времени
Are you using AEO-Light2? With cyan tracks you'll get a result with more signal and less noise converting to grayscale first, preferably by combining RGB to make it black.
I know AEO-light gives a great result, but I am doing audio decoding with a program I wrote myself.
With a cyan optical track, it is really easier to get a good result - with the right lighting of the film frame, the RED color channel (of the digital image) will contain a contrasting black and white image of the optical track, which is good to decode
Outstanding work making your own software, that's impressive!
Is that Jimmy Fallon at 1:02?
yes, that's him