Has Active Noise Cancellation (Noise Control)
Xiaomi Redmi Buds 4 Pro
✓
Skullcandy Indy Fuel ✗
ANC makes use of more advanced kind of tech to reduce unwanted ambient sounds. How it works, it listens to the sound pattern outside and inside the earbud and then inverts the soundwaves to cancel it out. Simply put, it's like taking +1 (noise) and adding -1 (inverted noise) to make 0 thus "diluting" the noise.
The Xiaomi Redmi Buds 4 Pro have ANC enabling you to listen at lower volume levels, good for your ears as you don't need to crank up the earbuds volume to outcompete background sounds.
Has Passive Noise Reduction
Xiaomi Redmi Buds 4 Pro
✓
Skullcandy Indy Fuel ✓
The Xiaomi Redmi Buds 4 Pro stay well in place, creating an acoustic covering that reduces your environment sounds and also prevents the device sound from leaking out at the same.
Both Skullcandy Indy Fuel, and Xiaomi Redmi Buds 4 Pro have passive noise reduction this means that both tone down ambient noise instead of actively using technology to cancel it out.
Driver Unit Size
Xiaomi Redmi Buds 4 Pro
11mm
Skullcandy Indy Fuel 6mm
Xiaomi Redmi Buds 4 Pro driver unit is 11mm in diameter, the bigger the unit the more powerful, and can produce better bass.
The driver unit is basically a mini speaker that makes sound in the earbuds, the unit size corellates with the loudness of the device.
Skullcandy Indy Fuel driver unit is 6mm in diameter,
which implies that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 5mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so it's true that, larger drivers are capable of generating louder sound, but this does not mean that they produce better quality sound.
Lowest Frequency
Xiaomi Redmi Buds 4 Pro
20hz
Skullcandy Indy Fuel 20hz
Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response inidcates how well a particular audio device produces low frequencies that can be heard, and if it alters the signal while at it.
Skullcandy Indy Fuel's lowest frequency is at 20Hz, this means that
both devices can make sound with equal bass
Highest Frequency
Xiaomi Redmi Buds 4 Pro
40,000hz
Skullcandy Indy Fuel 20,000hz
Xiaomi Redmi Buds 4 Pro's highest frequency is at 40,000Hz, high-frequency response measures if and how well a particular audio component produces high audible frequencies and if it makes any changes to the signal while at it.
Skullcandy Indy Fuel's highest frequency is at 20,000Hz, this means that
Xiaomi Redmi Buds 4 Pro can produce a clearer and crispier treble than the Skullcandy Indy Fuel
Sound Pressure Level
Xiaomi Redmi Buds 4 Pro
✗
Skullcandy Indy Fuel 105db/mw
The sound pressure level, is the level of pressure of sound, in decibels, dB, Skullcandy Indy Fuel's measurement is 105dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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