Which audio format can I play with pacat or paplay?
Which audioformat can I play with pacat or paplay? I have some audio files on my system with suffix *.m4a
file jd2/downloads/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise\ \(128kbit_AAC\).m4a
jd2/downloads/KH2FM Roxas Battle Theme - The Other Promise/KH2FM Roxas Battle Theme - The Other Promise (128kbit_AAC).m4a: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]I have no audioplayer on System.
paplay -p jd2/downloads/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise\ \(128kbit_AAC\).m4a
Failed to open audio file.The command
pacat -pv jd2/downloads/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise/KH2FM\ Roxas\ Battle\ Theme\ -\ The\ Other\ Promise\ \(128kbit_AAC\).m4a
Opening a playback stream with sample specification 's16le 2ch 44100Hz' and channel map 'front-left,front-right'.
Connection established.
Stream successfully created.
Buffer metrics: maxlength=4194304, tlength=352800, prebuf=349276, minreq=3528
Using sample spec 's16le 2ch 44100Hz', channel map 'front-left,front-right'.
Connected to device alsa_output.pci-0000_00_1b.0.analog-stereo (index: 0, suspended: no).
Stream started.
^CGot signal, exiting.cy: 2306533 usec. Gives a lout hissing.
Normaly I play such files with mpv.
But I'm curious. :D
1 Answer
m4a is a container that is likely an AAC or ALAC compressed file. Apple. It can contain DRM and it will likely not play if so.
From the manual:
Description
paplay is a simple tool for playing back audio files on a PulseAudio sound server. It understands all audio file formats supported by libsndfile.
From the source:
SF_FORMAT_WAV = 0x010000, /* Microsoft WAV format (little endian). */ SF_FORMAT_AIFF = 0x020000, /* Apple/SGI AIFF format (big endian). */ SF_FORMAT_AU = 0x030000, /* Sun/NeXT AU format (big endian). */ SF_FORMAT_RAW = 0x040000, /* RAW PCM data. */ SF_FORMAT_PAF = 0x050000, /* Ensoniq PARIS file format. */ SF_FORMAT_SVX = 0x060000, /* Amiga IFF / SVX8 / SV16 format. */ SF_FORMAT_NIST = 0x070000, /* Sphere NIST format. */ SF_FORMAT_VOC = 0x080000, /* VOC files. */ SF_FORMAT_IRCAM = 0x0A0000, /* Berkeley/IRCAM/CARL */ SF_FORMAT_W64 = 0x0B0000, /* Sonic Foundry's 64 bit RIFF/WAV */ SF_FORMAT_MAT4 = 0x0C0000, /* Matlab (tm) V4.2 / GNU Octave 2.0 */ SF_FORMAT_MAT5 = 0x0D0000, /* Matlab (tm) V5.0 / GNU Octave 2.1 */ SF_FORMAT_PVF = 0x0E0000, /* Portable Voice Format */ SF_FORMAT_XI = 0x0F0000, /* Fasttracker 2 Extended Instrument */ SF_FORMAT_HTK = 0x100000, /* HMM Tool Kit format */ SF_FORMAT_SDS = 0x110000, /* Midi Sample Dump Standard */ SF_FORMAT_AVR = 0x120000, /* Audio Visual Research */ SF_FORMAT_WAVEX = 0x130000, /* MS WAVE with WAVEFORMATEX */ SF_FORMAT_SD2 = 0x160000, /* Sound Designer 2 */ SF_FORMAT_FLAC = 0x170000, /* FLAC lossless file format */ SF_FORMAT_CAF = 0x180000, /* Core Audio File format */ SF_FORMAT_WVE = 0x190000, /* Psion WVE format */ SF_FORMAT_OGG = 0x200000, /* Xiph OGG container */ SF_FORMAT_MPC2K = 0x210000, /* Akai MPC 2000 sampler */ SF_FORMAT_RF64 = 0x220000, /* RF64 WAV file */
