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ADPCM Overview - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/xaudio2/adpcm-overview#:~:text=Adaptive%20Differential%20Pulse%20Code%20Modulation%20%28ADPCM%29%20is%20a,can%20achieve%20compression%20ratios%20of%20up%20to%204%3A1.
baudline solution - audio compression codecs
http://www.baudline.com/solutions/codec/index.html
The ADPCM codecs ranged in quality from 1.33 to 1.97 with G.721 being the leader. Of the two ADPCM codecs that operated at multiple rates the 2-bit version was slightly more efficient. On the other hand the ENOB drops by one bit when the rate is reduced by one bit so the ADPCM algorithm scales.
Implementing the ADPCM algorithm in STM32L1xx ...
https://www.st.com/resource/en/application_note/dm00109192-implementing-the-adpcm-algorithm-in-stm32l1xx-microcontrollers-stmicroelectronics.pdf
AN4453 ADPCM codec 14 1 ADPCM codec 1.1 Adaptive differential pulse coded modulation (ADPCM) ADPCM is a fixed length codeword audio codec which reduces redundant information from audio waveforms. The information core is sepa rated from the correlated waveform samples by encoding differences between the current samples and the predicted ones. As the
ADPCM | The Audio File
https://audio-file.org/tag/adpcm/
Supported codec types: Quick list of codecs vgmstream supports, including many obscure ones that are used in few games. PCM 16-bit PCM 8-bit (signed/unsigned) PCM 4-bit (signed/unsigned) PCM 32-bit float u-Law/a-LAW CRI ADX (standard, fixed, exponential, encrypted) Nintendo DSP ADPCM a.k.a GC ADPCM Nintendo DTK ADPCM Nintendo AFC …
adpcm · GitHub Topics · GitHub
https://github.com/topics/adpcm
Star 122. Code. Issues. Pull requests. Create, read and write wav files according to the specs. compression wav pcm region stereo command-line-tool cue 8-bit 16-bit riff 64-bit a-law adpcm 32-bit resample 24-bit bit-depth compander mu-law rifx. Updated on Apr 16.
Audio software codec for the STM8S - …
https://www.st.com/resource/en/application_note/cd00262888-audio-software-codec-for-the-stm8s-stmicroelectronics.pdf
compressed samples. A simple audio codec based on an adaptive differential pulse coded modulation (ADPCM) algorithm is used and advantage is taken of the advanced STM8S core with its 3-staged pipeline and 16 or 24 MIPS peak performance. The digital samples are usually converted to an analog signal by some external or onchip
Missing Audio Codec in Windows XP
https://support.moonpoint.com/os/windows/xp/sound/ima-adpcm-codec.html
Audio Codec: Description: Frequency/Sampling Rate: IMA ADPCM: The Microsoft Interactive Multimedia Association (IMA) ADPCM codec is designed for multiple hardware platforms and offers high quality, real-time compression with high bit rate content. IMA ADPCM is similar to Microsoft ADPCM, but provides faster 4:1 compression. 8.000 kHz, 4-bit, Mono, 3 kbps
Good 1bit-ADPCM codecs? - HydrogenAud
https://hydrogenaud.io/index.php?topic=115415.0
The first one is the ADPCM I already explained here. The other track contains the difference between the original and the encoded file compressed losslessly. Both together comes up to approx 640-800kbps. It is pretty high bit-rate but almost lossless, if both are mixed together during playback.
Is ADPCM lossless compression? - Hydrogenaudio
https://hydrogenaud.io/index.php?topic=27453.0
ADPCM is lossy - 4 bits is not enough to store the differences between samples correctly. Note that ADPCM compression corresponds to a bitrate of 352kbps. Compared to an AAC/Ogg/MP3/Wavpack hybrid of the same bitrate it *will* be off lesser quality.
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