Is pcm good?
After class 10, students and parents have to make a key decision about the science stream. Which subjects to take in class 11 – PCM, PCB or PCMB? Medical or Non-Medical stream, which is better?
Quick answer : Take PCB if you want to study medicine after 12. Take PCM if you want to pursue engineering after 12. Take both (PCMB) if you are not sure what you want to study. If you like to do a course in basic science, then you can choose your preferred subjects accordingly.
Let’s know everything about PCM, PCB and PCMB streams so that you will not have any confusion when choosing subjects in class 11.
In science stream, you can take multiple combinations of subjects – PCM, PCB and PCMB.
PCM Full Form : Physics Chemistry Mathematics
PCB Full Form : Physics Chemistry Biology
PCMB Full Form : Physics Chemistry Mathematics Biology
PCM is a combination of subjects a student can take in class 11 and 12 which must include Physics, Chemistry and Mathematics.
List of subjects you can take in class 11 PCM : Physics, Chemistry, Math, English, Computer Science or any other optional subject.
Do you like Math as a subject? Are you comfortable solving Math problems? In your mind, is it clear that you want to pursue engineering? Is IIT your dream? If the answer is Yes to any of the these questions, then take Non-Medical i.e. PCM.
PCB is a combination of subjects a student can take in class 11 and 12 which must include Physics, Chemistry and Biology.
List of subjects you can take in class 11 PCM : Physics, Chemistry, Biology, English and any other optional subject.
If your dream is to become a doctor, then it’s a no-brainer that you need to take Medical stream (PCB). If you are clear that Math is not your cup of tea, you don’t have much desire to pursue engineering and you like studying Biology, in that case the medical stream is a good option for you.
PCMB is a combination of subjects a student can take in class 11 and 12 which include Physics, Chemistry, Mathematics and Biology.
Yes, if you are not sure whether you would like to pursue medicine, engineering or any other science course, then you can take both Math and Biology in class 11 (PCMB stream).
You can prepare for IIT JEE and NEET at the same time. It will be tough to study Math and Biology combined, but it’s doable and some students have cleared both the entrance examinations – JEE and NEET.
The main advantage of taking PCMB is that the students will have the option of choosing multiple career options after class 12. You will be eligible to give NEET, JEE and other engineering entrance exams. It’s best for the confused students who don’t know what to take up as a career.
The disadvantage of taking PCMB is that sometimes it gets difficult to manage both Math and Biology. You might have to put in more effort compared to others.
Both PCM and PCB are good career options. Choosing PCM or PCB depends on the student’s interest whether he wants to pursue engineering or medical. Generally, PCM is recommended for engineering and PCB for medical aspirants.
What subjects/ group should I take in class 11 to become a doctor?
Take PCB in class 11 to become a doctor. Subjects to take in class 11 to become a doctor : Physics, Chemistry, Biology, English and any optional subject.
Which subjects to choose in 11th for software/computer/mechanical/civil engineering?
For engineering, it’s better to take the PCM stream. Subjects to choose in class 11 for engineering : Physics, Chemistry, Math, English and Computer Science.
PCM or PCB, which is hard and which is easy?
Neither PCM is hard nor PCB is easy. Math requires a lot of practice while Biology needs a lot of memorization and revision. Choose your stream as per your interest in the subject and field you want to continue in future.
The scope and opportunity is equally good in engineering and medical. Whatever subject you choose, give your best effort.
Best wishes for your career ahead!
Related posts :
NEET vs JEE – Which is Better?
Engineering or Medicine – Which Career to Choose
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Higher data rate capability: PCM can achieve a higher data rate than those with other techniques, like AM or FM, because it does not require any extra processing steps for the frequency encoded information. This makes the PCM system work well with high-speed systems such as video and telephony applications.
Dolby Digital is a lossy compression of multichannel audio format used for storing and transmitting digital audio data on optical discs like CD-ROMs and DVD-ROMs and in computer media. It is also commonly known as DD, or simply 5.1 surround sound.
Dolby Digital is the most common digital audio compression scheme in commercial digital audio media, such as DVDs, CDs, and Blu-ray Discs. Dolby Laboratories originally developed it and has been licensed to various companies since its development in 1988.
PCM stands for Pulse Code Modulation, the encoding method used to deliver digital sound. The PCM signal is converted into an analog waveform, then converted back into a digital signal by a Digital-to-Analog Converter (DAC).
The DAC determines how much amplitude will present in each audio information sample. A low-pass filter then converts the amplitude of each sample to a voltage level. This signal is sent to your speakers, causing them to vibrate and produce sound waves.
Both Dolby Digital and PCM can tailor to converting audio recordings. Whereas PCM relies on the uncompressed conversion of analog sounds to digital, Dolby Digital practices a 5-7 channel setup. From a technical perspective, users prefer Dolby over PCM due to higher channels, but the output’s quality matters greatly too.
However, this is not enough knowledge to decide on which format would be best for your needs. In this Dolby Digital vs. PCM guide, we will compare and contrast the specs and performance of the two audio formats to help you make an informed decision.
So far, we understand the fundamental dynamics of Dolby Digital and PCM, but you need an in-depth illustration of their features, pros, and cons.
Dolby Digital is a 5.1 surround sound format that has become popular for playing DVDs and Blu-ray discs on home theater systems. It uses an encoded audio signal that contains both the front left, center, and right channels and the surrounding left, surrounding right, and subwoofer channels.
Dolby Digital has many features that separate it from the competition.
Dolby Digital offers an uncompressed audio format that delivers the highest quality sound. Dolby Digital is a lossless format and does not lose any information passing through a transmission or storage medium. The result is that your music will sound as good as it does in your home or office, even at higher volumes.
Dolby Digital uses advanced noise reduction technology to produce a better-quality image with less background noise. It means you can enjoy movies without turning the volume up too high to drown out sounds from other sources—like people talking or street traffic—which can occur with non-Dolby Digital sources.
The enhanced bass output of Dolby Digital means more precise and powerful bass frequencies than those available in other formats like SACD or DVD-A. It makes it ideal for use in home theaters where you’re looking for more bass than what’s provided by traditional audio setups, such as speakers and subwoofers.
Dolby Digital is the original 5.1 surround sound format and the only one that has been around since its inception in the 1980s.
It uses Dolby Pro Logic II decoding to create a 5-channel surround sound experience that can play on any existing stereo or home theatre system with two speakers or more.
Dolby Digital uses a higher sampling rate than other formats, Dolby Digital can deliver more accurate sound reproduction than other formats. It means you get better sound quality when you record with a Dolby Digital recorder or play back your recordings on an audio system that supports Dolby Digital.
Dolby Digital is a technology that allows you to mix sound from multiple speakers into a single audio stream. This means you can listen to your music in the back seat of a car or even in a bathroom without worrying about losing any details. You can also use Dolby Digital on your TV and home theater system for a truly immersive listening experience.
PCM stands for pulse code modulation. It’s an older technology that encoded audio signals before Dolby Digital was developed. It doesn’t use any compression techniques to reduce file size. Still, it can’t be used with newer software or devices because it’s not fully compatible with modern standards such as Dolby Surround or DTS Neo:6.
The main features of PCM include the following, as listed below.
Linearity is the ability of a pulse-code modulation (PCM) signal to have the same amplitude at any point in time. In other words, if you have a PCM signal, it should be able to reproduce all cycles without distortion. Linearity is important for many reasons.
For example, if you are using audio compression or transmission, you need to ensure that your audio doesn’t get distorted by changing its amplitude. If there is too much distortion in your audio, it will sound bad and be hard to hear.
The frequency response of a pulse-code modulation (PCM) system is the ability of the receiver to reproduce signals at specific frequencies in the range of interest. It is usually defined as the set of all values within a given bandwidth that will be detected as data. In an audio system, it is usually measured concerning an ideal sine wave.
It results in a number that indicates how well a given signal can be recovered from a given input level. This number may also include noise, distortion, or interference errors. In the case of video, the most common application of PCM systems is motion detection in video surveillance applications. This allows fast switching between images without lossy compression artifacts and requires additional bandwidth for each frame.
Dynamic range is the difference between the loudest and softest sounds a recording can reproduce. The dynamic range varies from one recording to another, but is generally between 94 dB and 109 dB at 1 kHz. The dynamic range of a digital audio file is measured in decibels (dB).
The higher the dynamic range, the better an audio file will sound. The dynamic range for a standard CD is about 95 dB. A typical DVD has a bit less dynamic range, at 90 dB. As you might expect, vinyl records have the highest dynamic range, at 120 dB or more.
The encoding delay is the time it takes for the data to be encoded and then decoded. In a digital system, this is typically one bit or two bits of information at a time. The longer the encoding delay, the more information can be sent in one clock cycle. A shorter delay will allow more information to be sent per cycle.
The two formats are not directly comparable as they have different features.
PCM is uncompressed raw audio. Dolby Digital is compressed audio (somewhat like an MP3), which is essentially the PCM version and compressed in a lossy manner.
What after 12th? For most students, selecting a good career opportunity after 12th grade can be a nerve wracking challenge. With thousands of professional courses to choose from today, it’s more confusing than ever to decide which career path to pursue and what holds the key to a bright and successful future. If you are a science student with PCM (Physics, Chemistry and Mathematics) subject combination, there’s a vast array of PCM career options available to you. While that's good news, you need to know your options and learn how to steer your career in the right direction.
This blog explores the best PCM career options you can take up after 12th and helps you find the courses that best fit your profile.
