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Digital Audio Chapter Five: Quantitization
https://cmtext.indiana.edu/digital_audio/chapter5_quantize.php#:~:text=Each%20additional%20bit%20doubles%20the%20number%20of%20values,LPCM%2C%20though%20it%20is%20usually%20just%20called%20PCM.
Digital Audio Chapter Five: Quantitization
https://cmtext.indiana.edu/digital_audio/chapter5_quantize.php
For digital PCM systems, this is often measured as SQNR, or signal-to-quantization-noise-ratio which can be express in dB's. The SQNR can be calculated similarly to amplitude decibles as SQNR = 20 log 10 (2 # of bits) ≈ 6.02 * # of bits dB. Therefore, a general rule of thumb:
Quantization (sound Processing) - 24-bit Quantization
https://www.liquisearch.com/quantization_sound_processing/24-bit_quantization
24-bit Quantization. 24-bit audio is sometimes used undithered, because for most audio equipment and situations the noise level of the digital converter can be louder than the required level of any dither that might be applied. There is some disagreement over the recent trend towards higher bit-depth audio. It is argued by some that the dynamic range presented by 16 …
Signals - Quantization and Sampling
https://makeabilitylab.github.io/physcomp/signals/QuantizationAndSampling/index.html
# 2-bit audio quantization_bits = 2 audio_data_2bit = audio_data_float * 2 ** quantization_bits audio_data_2bit = audio_data_2bit. astype (int) print (audio_data_2bit) print (f " {quantization_bits}-bit audio ranges from -{2**(quantization_bits - 1)} to {2**(quantization_bits - 1) - 1}") print (f "Max value: {np.max(audio_data_2bit)} Avg value: {np.mean(audio_data_2bit):.2f}") fig, axes = …
Quantization And Transmission Of Audio in MULTIMEDIA ...
https://www.wisdomjobs.com/e-university/multimedia-tutorial-270/quantization-and-transmission-of-audio-12776.html
Using uniform quantization without companding, the minimum sample size we could get away with would likely be about 12 bits. Hence, for mono speech transmission the bitrate would be 240 kbps. With companding, we can safely reduce the sample size to 8 bits with the same perceived level of quality and thus reduce the bitrate to 160 kbps.
Lecture 7: Audio compression and coding
https://www.ee.columbia.edu/~dpwe/e6820/lectures/L07-coding.pdf
Compression & Quantization Howbigis audio data? What is thebitrate? I F s frames/second (e.g. 8000 or 44100) x C samples/frame (e.g. 1 or 2 channels) x B bits/sample (e.g. 8 or 16)!F s C B bits/second (e.g. 64 Kbps or 1.4 Mbps) bits / frame frames / sec 8000 8 32 44100 CD Audio 1.4 Mbp s Telephony 64 Kbps Mobile !13 Kbps How to reduce?
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