Has Active Noise Cancellation (Noise Control)
Devialet Gemini
✓
Xiaomi Redmi Buds 4 Pro ✓
Active noise cancellation uses advanced technology to actively cancel noise. How it works, it detects and analyzes the sound pattern of incoming noise and then inverts the soundwaves to cancel it out. In simple terms, it's like taking +1 (noise) and adding -1 (inverted noise) giving 0 thus "diluting" the noise.
The Devialet Gemini have Active Noise Cancellation allowing you to listen at lower volume levels, causing less ear fatigue since you don't have to crank up the earbuds volume to outcompete background noise.
Xiaomi Redmi Buds 4 Pro too have ANC which makes either of the devices ideal for flights and morning travels. The Devialet Gemini and Xiaomi Redmi Buds 4 Pro operate with different noise cancellation modes, pick the setting that you prefer for travel or that enhances your relaxation time.
Has Passive Noise Reduction
Devialet Gemini
✓
Xiaomi Redmi Buds 4 Pro ✓
Devialet Gemini stay tightly in place, this creates an acoustic covering that tones down background sounds and also prevents the device music from leaking out at the same.
Both Xiaomi Redmi Buds 4 Pro, and Devialet Gemini have passive noise reduction this implies that both reduce ambient noise without using ANC to cancel it out.
Driver Unit Size
Devialet Gemini
10mm
Xiaomi Redmi Buds 4 Pro 11mm
Devialet Gemini have a unit size of 10mm in diameter, bigger drivers are more powerful, therefor producing better bass.
The driver unit is basically a mini speaker that makes sound in the device, the unit size corellates with the sound made by the earbuds.
Xiaomi Redmi Buds 4 Pro driver unit is 11mm in diameter,
making them have a larger driver unit than that of Devialet Gemini by 1mm
, a common assumption that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing 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
Devialet Gemini
5Hz
Xiaomi Redmi Buds 4 Pro 20Hz
Devialet Gemini's lowest frequency is at 5Hz, low-frequency response measures if and how well a particular audio device generates low frequencies that can be heard, and if it makes any changes to the signal on its way through.
Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, this means that
Devialet Gemini can make sound with a juicier bass than the Xiaomi Redmi Buds 4 Pro
Highest Frequency
Devialet Gemini
20000Hz
Xiaomi Redmi Buds 4 Pro 40000Hz
Devialet Gemini's highest frequency is at 20000Hz, high-frequency response tells how well an audio component produces high audible frequencies and if it changes to the signal while at it.
Xiaomi Redmi Buds 4 Pro's highest frequency is at 40000Hz, this implies that
Xiaomi Redmi Buds 4 Pro can produce a clearer and crispier treble than the Devialet Gemini
Sound Pressure Level
Devialet Gemini
94dB/mW
Xiaomi Redmi Buds 4 Pro ✗
SPL, is the pressure level of sound, in decibels, dB, Devialet Gemini's measurement is 94dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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