Audio format

Arquivos de amostra M4A

M4A (.m4a) encapsulates AAC or ALAC audio within an MP4 container, adding support for chapter markers and metadata atoms. Common on Apple platforms, it’s ideal for music and podcasts. Use sample .m4a files to test container parsing, chapter navigation, and artwork extraction.

4 arquivos All to 500KB SHA256 verified Manifest included
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Quick facts
CategoriaAudio
Total Files4
Extension.m4a
MIMEaudio/mp4
ManifestJSON
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Files first

M4A Sample Files — Download

Starter file

m4a_15s_sample_file_141KB.m4a · 140.2 KB

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All (4) 50KB (1) 200KB (2) 500KB (1)
Nome do arquivo Tamanho MIME Baixar
m4a_15s_sample_file_141KB.m4a
.m4a Starter SHA256 9526e6248b94...
140.2 KB audio/mp4 Baixar
m4a_30s_sample_file_285KB.m4a
.m4a Realistic SHA256 aa8a7f81ada8...
284.8 KB audio/mp4 Baixar
m4a_5s_sample_file_44KB.m4a
.m4a SHA256 94a3173ca603...
43.9 KB audio/mp4 Baixar
m4a_60s_sample_file_574KB.m4a
.m4a SHA256 54a2f88a0764...
573.7 KB audio/mp4 Baixar
Use cases

M4A Testing Workflows

Upload Testing

M4A for Upload Testing

Abrir pagina M4A

Parser Regression

M4A for Parser Regression

Abrir pagina M4A

QA Automation

M4A for QA Automation

Abrir pagina M4A
Compare and decide

M4A Format Comparisons

Melhor formato de audio para streaming Best Format for Podcast Distribution How to Convert M4A to WAV
More audio formats: WAV MP3 AAC AIFF FLAC MID
FAQ and reference

M4A File FAQ

Checksum Verification

Use checksums to confirm file integrity after download.

shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.
Where is the machine-readable manifest?

Use the manifest when you need stable names, SHA256 values, and URLs for automation.

Manifest
Validation Methodology
  • Verify duration, sample rate, and channel count in your decoder.
  • Test metadata extraction and malformed-tag handling.
  • Validate seek/stream behavior over slow networks.
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