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AMR File - Remo Software

    https://www.remosoftware.com/glossary/amr-file
    Mime type: audio/amr. Types of AMR files: Essentially there are two types of AMR file formats; AMR- Narrow Band and AMR-Broad band. Below is the brief description of the two: AMR-NB (Narrowband): This version is commonly used in situations like basic voice recording on your MP3 player, where low bitrates are sufficient. The frequency range used for AMR-NB is 300-3400 Hz …

decode - Android MediaCodec AMR-NB realtime …

    https://stackoverflow.com/questions/31940960/android-mediacodec-amr-nb-realtime-decoding
    I need to encode each voice frame (20ms) and send via said api, then decode it on the other side. I tried working with Opus through NDK but it wasn't going anywhere so I decided using MediaCodec to encode/decode with AMR-NB. The Encoding seems to work, results in a buffer of the expected size (160 raw bytes into 20 encoded bytes + header at 7 ...

788204 - Gecko doesn't detect MIME type of MP3 files

    https://bugzilla.mozilla.org/show_bug.cgi?id=788204
    For problems related to media (video/audio) -- especially when the reporter is not sure which area of the media stack the problem is in. This category will mostly be for untriaged video/audio issues. Bugs in this category will typically be moved to …

Convert files from and to AMR format online - AnyConv

    https://anyconv.com/amr-converter/
    .amr, .3ga: MIME type: audio/amr: Developed by: 3GPP: Type of format: Audio compression format: Description: The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM and UMTS. Technical …

Adaptive Multi-Rate - Wikipedia

    https://ja.wikipedia.org/wiki/Adaptive_Multi-Rate
    Adaptive Multi-Rate(直訳では『適応多重レート』)、略称AMR (エーエムアール) は、ノキア、エリクソン、シーメンスが共同で開発した音声コーデック。. MP3、AACなどは音楽の圧縮を目的としている一方、AMRは音声に特化したもので、圧縮率は高いが音質は劣る。. 1998年 10月に3GPPによって標準的な ...

mime types - How to set mimetype of audio file, so that it ...

    https://stackoverflow.com/questions/51962315/how-to-set-mimetype-of-audio-file-so-that-it-work-on-both-android-and-ios
    It is working, and I can record an audio with the mime type audio/mpeg. But when I send this audio file to server or to an IOS device then they are not able to play this audio. But when I send this audio file to server or to an IOS device then they are not able to play this audio.

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