DFF vs GSM
Um comparativo detalhado de DSD Interchange File e GSM Audio — tamanho de arquivo, qualidade, compatibilidade e qual escolher de acordo com seu fluxo de trabalho.
DSD Interchange File
Audio FilesDFF (DSDIFF - DSD Interchange File Format) is the original file format for DSD audio data, developed by Philips. Unlike DSF, it uses a chunked IFF structure and is the native format for many professional DSD recording systems.
Sobre os arquivos DFFGSM Audio
Audio FilesGSM 06.10 is a speech compression standard designed for the Global System for Mobile Communications. It encodes speech at 13 kbps using Regular Pulse Excitation with Long Term Prediction, optimized for voice intelligibility over cellular networks.
Sobre os arquivos GSMComparativo de vantagens
DFF Vantagens
- SACD-native format.
- Supported by high-end DACs.
- Bit-exact DSD preservation.
GSM Vantagens
- Tiny bitrate (13 kbps) — hours of speech in a few MB.
- Speech-optimized — clear voice reproduction.
- Universal cellphone decoder adoption 1991-2015.
- Stable since 1987.
Limitações
DFF Limitações
- No metadata support.
- Huge files (2-6 GB album).
- Niche audiophile market.
- Specialized decoder hardware needed.
GSM Limitações
- Speech-only — music sounds distorted.
- 8 kHz sampling — narrowband, muffled by modern standards.
- Legacy — LTE VoLTE moved to AMR-WB, Opus, or EVS.
- Tooling outside telecom is sparse.
Especificações técnicas
| Especificação | DFF | GSM |
|---|---|---|
| MIME type | audio/x-dff | audio/gsm |
| Extension | .dff | .gsm |
| Sample rate | 2.8224 MHz (DSD64), 5.6448 (DSD128) | 8 kHz |
| Creator | Philips | — |
| Sibling | .dsf | — |
| Codec | — | GSM 06.10 (RPE-LTP) |
| Bitrate | — | 13 kbps |
Tamanhos típicos de arquivo
DFF
- Full SACD album (DSD64) 2-4 GB
- DSD128 album 4-8 GB
GSM
- 1 min of voice ~100 KB
- 1 hour voicemail archive ~6 MB
Pronto para converter?
Converta entre DFF e GSM online, grátis e sem instalar nada. Upload criptografado, exclusão automática em 60 minutos.
Perguntas frequentes
DFF (DSD Interchange File) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
DFF (DSD Interchange File) is an audio formatoo de arquivo used to store sound recordings — music, voice, podcasts, sound effects. The formato defines how the audio samples are comprimido (or stored raw), what bitrates are suportado, e how metadata como title, artist, album, e cover art is embedded. It is part of the audio arquivos family.
VLC, foobar2000, and the default media players on Windows and macOS handle DFF natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
VLC, foobar2000, e the default media players no Windows e macOS handle DFF natively. On mobile, iOS Music e Android media apps vary in their support — popular formatoos funcionar everywhere; niche ones may need a dedicated app. If playback fails em um device, convertendo to MP3 ou AAC Geralmente solves it.
Upload the DFF to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
DFF can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.